The disclosure relates to a power converter system (100) including one or more input converters (10) with an input converter topology, one or more output converters (12) with an output converter topology, and a DC link (14) including one or more energy storages (15), wherein the DC link is connected between the input converter(s) (10) and the output converter(s) (12). The power converter system (100) including a controller (20) configured to adjust an operating point, defined by an output frequency and an output angle, to minimize operation at one or more predefined undesirable operating point ranges (122) for reducing losses in the DC link (14). The one or more predefined undesirable operating point ranges (122) are determined based on: the input converter topology, the output converter topology, an angle difference between the output and input angles, and a frequency difference between the output and the input frequencies.
The disclosure describes a switching circuit for changing between network operation and island operation of a three-phase household network, having a first and a second positively driven relay, each having a control coil and a number of normally open contacts and a number of normally closed contacts. The terminals of the control coil of the second relay are connected in parallel to terminals of the control coil of the first relay via a first normally open contact of the first relay. The switching circuit is provided for input-side connection to one of the phase terminals of a network terminal and for output-side connection to a phase terminal of a household terminal. In a quiescent state, the second relay connects two of the phase terminals between the network terminal and the household terminal and, in a controlled state, connects the phase terminals of the household terminal to one another.
H02J 9/06 - Circuits pour alimentation de puissance de secours ou de réserve, p. ex. pour éclairage de secours dans lesquels le système de distribution est déconnecté de la source normale et connecté à une source de réserve avec commutation automatique
5.
METHOD FOR CONTROLLING A DRIVER CIRCUIT FOR A POWER SEMICONDUCTOR SWITCH, CIRCUIT ARRANGEMENT, AND POWER-ELECTRONIC CONVERTER CIRCUIT
The invention relates to a method for controlling a driver circuit (1) for a power semiconductor switch (2), wherein the driver circuit (1) can be controlled in such a way that, depending on the control, it supplies a current for switching the power semiconductor switch (2) at a first switching speed or at a second switching speed. In the method, the driver circuit (1) is controlled in such a way that, within a periodically recurring time window (TZ), which in turn is divided into a number of equal-length sub-intervals (TT), the current for switching at the first switching speed is provided for a predeterminable number of sub-intervals (TT), and the current for switching at the second switching speed is provided for a predeterminable number of sub-intervals (TT).
The invention relates to a method for operating a power converter, the method comprising: providing an overcurrent, wherein the overcurrent is greater than a continuous current of the power converter and is within the limits of a defined overcurrent profile. The method further comprises the steps (I) before providing the overcurrent, maintaining a reserve which is formed in each case by at least one distance of at least one power converter parameter to defined parameter limits, and one or more preset overcurrent profiles are permissible depending on the reserve, (II) providing the overcurrent for a time period defined by the respectively permissible overcurrent profile, wherein the resulting current is limited to the current limits of the respective permissible overcurrent profile, and (III) after providing the overcurrent, restoring the conditions for providing the overcurrent.
H02M 1/00 - Détails d'appareils pour transformation
H02M 1/32 - Moyens pour protéger les convertisseurs autrement que par mise hors circuit automatique
H02M 7/5387 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif sans possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs, p. ex. onduleurs à impulsions à un seul commutateur dans une configuration en pont
H02M 7/797 - Transformation d'une puissance d'entrée en courant alternatif en une puissance de sortie en courant continuTransformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif avec possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs
7.
RECTIFIER WITH INRUSH PROTECTION BYPASS PASSING CURRENT IN ONE DIRECTION ONLY AND METHOD FOR STARTING UP POWER SUPPLY TO A RECTIFIER
The disclosure relates to a rectifier (1) for rectifying alternating current from a power source (80) with N phases (PA, PB, PC), wherein N is at least two. It includes a power input (2) for connection with the power source (80), an LCL filter (30) connected to the power input (2) via an interruption unit (40), an active front end (10) with at least two levels that includes a direct current bus (11) and is connected to the power input (2) via the LCL filter (30) and the interruption unit (40). The interruption unit (40) is switchable to an interrupting state in which it disconnects the LCL filter (30) and hence the active front end (10) from the power input (2) for N-1 phases (PA, PB), said N-1 phases (PA, PB) including a first phase (PA). The rectifier (1) has an inrush protection bypass (50) for bypassing the interruption unit (40) for the first phase (PA). In order to provide reliable and cheap protection from excessive inrush currents for the rectifier (1) while allowing for particularly high efficiency of the rectifier (1) in normal operation, the inrush protection bypass (50) is conductive only for current flow in one specific direction.
H02H 7/125 - Circuits de protection de sécurité spécialement adaptés aux machines ou aux appareils électriques de types particuliers ou pour la protection sectionnelle de systèmes de câble ou de ligne, et effectuant une commutation automatique dans le cas d'un changement indésirable des conditions normales de travail pour convertisseursCircuits de protection de sécurité spécialement adaptés aux machines ou aux appareils électriques de types particuliers ou pour la protection sectionnelle de systèmes de câble ou de ligne, et effectuant une commutation automatique dans le cas d'un changement indésirable des conditions normales de travail pour redresseurs pour convertisseurs ou redresseurs statiques pour redresseurs
H02M 1/12 - Dispositions de réduction des harmoniques d'une entrée ou d'une sortie en courant alternatif
H02M 7/217 - Transformation d'une puissance d'entrée en courant alternatif en une puissance de sortie en courant continu sans possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs
8.
ELECTRIC MOTOR DRIVE AND INTEGRATED MARINE ELECTRIC SYNCHRONOUS MOTOR
The present disclosure relates to a protection system for synchronous generators or motors used in power converter arrangements, particularly in marine applications. The system provides enhanced fault isolation, redundancy, and operational safety for electrical propulsion and power generation systems. More specifically, the disclosure addresses the need for selective fault isolation in power converters, ensuring that failures do not lead to total system shutdown. The disclosure is also directed at a power system including a protection system.
H02P 29/028 - Détection d’un défaut, p. ex. court circuit, rotor bloqué, circuit ouvert ou perte de charge le moteur continuant de fonctionner malgré le défaut, p. ex. élimination, compensation ou résolution du défaut
The present disclosure pertains to a transversal flux machine (TFM) including a number of Stator phase modules each including a coil and an armature, and a rotor with magnetic pole pairs. At least two stator phase modules are stacked axially with respect to each other and displaced in a circumferential direction with respect to each other. The stator phase modules are selected from a range of at least two different types of stator phase modules, wherein the different types of stator phase modules have different electrical characteristics, and wherein preferably all types of stator phase modules are provided for being mechanically connectable to each other independently of their respective type. The present disclosure also pertains to an integrated electric motor application including a motor drive and a transversal flux machine.
The application relates to a method for starting an electrical supply circuit which has a first power converter, a second power converter and a rectifier circuit and is intended to supply a DC connection (DCA) with electrical energy from an AC grid, wherein at least one DC connection circuit is connected to the DC connection (DCA) and the AC grid is connected to an AC connection (ACA) of the supply circuit. The method includes pre-charging a first DC link of the first power converter and a second DC link of the second power converter via an AC pre-charging circuit from the AC grid; and forming an AC island grid through the second power converter, wherein the DC connection (DCA) is supplied with electrical energy from the AC island grid via the rectifier unit during the forming of the AC island grid.
C25B 15/02 - Commande ou régulation des opérations
H02M 1/36 - Moyens pour mettre en marche ou arrêter les convertisseurs
H02M 7/12 - Transformation d'une puissance d'entrée en courant alternatif en une puissance de sortie en courant continu sans possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande
The invention relates to a motor drive for monitoring operational measurement data (34) of an electric motor (12) having at least one operating point (78, 80, 82, 84), wherein the electric motor (12) is configured to drive a load (21), the motor drive (10) comprising a measurement unit (14) for acquiring initial measurement data (118) for at least one of the operating points (78, 80, 82, 84) of the electric motor (12), wherein the initial measurement data comprises sensor data and/or estimated data; a processing unit (26) for determining a baseline (58, 60, 62, 64) from the initial measurement data (118) for the at least one operating point (78, 80, 82, 84); an output unit (28); characterized in that the processing unit (26) is configured to generate at least one threshold level (36, 38, 40) for the at least one determined baseline (58, 60, 62, 64), while the electric motor (12) is on an on state or an off state; wherein the at least one threshold level (36, 38, 40) defines a level of deviation from the determined baseline (58, 60, 62, 64), wherein the output unit (28) is configured to provide the at least one threshold lev-el (36, 38, 40) resulting in conditions for monitoring the operational measurement data (34) of the electric motor (12). The invention provides an improved motor drive (10) for monitoring operational measurement data (34) of a electric motor (12) that are more accurate than in the prior art.
09 - Appareils et instruments scientifiques et électriques
42 - Services scientifiques, technologiques et industriels, recherche et conception
Produits et services
Data communications software; computer software for
controlling and managing access server applications;
database server software; data management software;
interactive database software; computer software for
database management; application software for cloud
computing services; energy management software; industrial
process control software; production support software;
security software; cryptography software; computer software
for authorising access to databases; computer software for
the creation of firewalls; cloud server software; cloud
network monitoring software; computer programmes for data
processing; interactive databases; software; cloud servers;
data transmission networks; Internet of things [IoT]
gateways; computer networking and data communications
equipment; data processing systems. Computer security threat analysis for protecting data;
authentication services for computer security;
telecommunication network security consultancy; computer
programming services for electronic data security; data
security services [firewalls]; computer security services in
the nature of administering digital certificates; computer
security system monitoring services; cloud-based data
protection services; consultancy in the field of security
software; cloud hosting provider services; electronic data
storage and data back-up services; design and development of
Internet security programs; maintenance of computer software
relating to computer security and prevention of computer
risks; installation and maintenance of computer programs;
development, updating and maintenance of software and
database systems; software development; maintenance and
updating of computer software; custom design of software
packages; data security services; data encryption services;
data security consultancy; development of systems for the
processing of data.
09 - Appareils et instruments scientifiques et électriques
42 - Services scientifiques, technologiques et industriels, recherche et conception
Produits et services
Data communications software; computer software for
controlling and managing access server applications;
database server software; data management software;
interactive database software; computer software for
database management; application software for cloud
computing services; energy management software; industrial
process control software; production support software;
security software; cryptography software; computer software
for authorising access to databases; computer software for
the creation of firewalls; cloud server software; cloud
network monitoring software; computer programmes for data
processing; interactive databases; software; cloud servers;
data transmission networks; Internet of things [IoT]
gateways; computer networking and data communications
equipment; data processing systems. Computer security threat analysis for protecting data;
authentication services for computer security;
telecommunication network security consultancy; computer
programming services for electronic data security; data
security services [firewalls]; computer security services in
the nature of administering digital certificates; computer
security system monitoring services; cloud-based data
protection services; consultancy in the field of security
software; cloud hosting provider services; electronic data
storage and data back-up services; design and development of
Internet security programs; maintenance of computer software
relating to computer security and prevention of computer
risks; installation and maintenance of computer programs;
development, updating and maintenance of software and
database systems; software development; maintenance and
updating of computer software; custom design of software
packages; data security services; data encryption services;
data security consultancy; development of systems for the
processing of data.
The application describes a PV energy generation plant with a central inverter circuit connected to a PV generator that comprises a plurality of parallel PV main strings connected, on the input side, to the central inverter circuit via DC lines assigned to a respective PV main string and a monitoring circuit, comprising a differential current measurement circuit, an isolating switch, and a monitoring controller configured to switch the isolating switch after a differential current threshold value IS,Diff has been exceeded and isolate the PV main string. A ground fault monitoring circuit is arranged between a DC link circuit and a grounding connection and comprises a ground current measurement circuit, an isolating circuit, and a controller configured to selectively trip the isolating circuit after a defined delay time T
H02H 7/20 - Circuits de protection de sécurité spécialement adaptés aux machines ou aux appareils électriques de types particuliers ou pour la protection sectionnelle de systèmes de câble ou de ligne, et effectuant une commutation automatique dans le cas d'un changement indésirable des conditions normales de travail pour équipement électronique
G01R 19/10 - Mesure d'une somme, d'une différence, ou d'un rapport
G01R 19/165 - Indication de ce qu'un courant ou une tension est, soit supérieur ou inférieur à une valeur prédéterminée, soit à l'intérieur ou à l'extérieur d'une plage de valeurs prédéterminée
G01R 31/52 - Test pour déceler la présence de courts-circuits, de fuites de courant ou de défauts à la terre
The application relates to a power converter for ground-fault-protected exchange of electrical power between a three-phase AC voltage grid and a battery, wherein the power converter includes an AC terminal, a DC terminal, a bridge circuit and a DC-to-DC converter, wherein the AC terminal is provided for connection to the AC voltage grid and the DC terminal is provided for connection to the battery, wherein a DC link is arranged between the DC-to-DC converter and the DC terminal and a bridge intermediate circuit is arranged between the DC-to-DC converter and the bridge circuit, wherein the DC-to-DC converter comprises clocked semiconductor switches which are configured to generate a voltage transmission ratio between the DC link and the bridge intermediate circuit during the exchange of electrical power, and wherein the DC-to-DC converter includes at least one further semiconductor switch which is configured to establish a connection between the DC link and the bridge intermediate circuit during the exchange of electrical power and to interrupt this connection in the event of a ground fault.
H02J 3/32 - Dispositions pour l'équilibrage de charge dans un réseau par emmagasinage d'énergie utilisant des batteries avec moyens de conversion
B60L 3/00 - Dispositifs électriques de sécurité sur véhicules propulsés électriquementContrôle des paramètres de fonctionnement, p. ex. de la vitesse, de la décélération ou de la consommation d’énergie
B60L 53/22 - Détails de structure ou aménagements des convertisseurs de charge spécialement adaptés pour recharger des véhicules électriques
H02J 7/06 - Régulation du courant ou de la tension de charge utilisant des tubes à décharge ou des dispositifs à semi-conducteurs
H02M 1/00 - Détails d'appareils pour transformation
H02M 3/158 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu sans transformation intermédiaire en courant alternatif par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs avec commande automatique de la tension ou du courant de sortie, p. ex. régulateurs à commutation comprenant plusieurs dispositifs à semi-conducteurs comme dispositifs de commande finale pour une charge unique
16.
METHOD FOR OPERATING A SUPPLY UNIT FOR AN ELECTROLYSER, SUPPLY UNIT FOR CARRYING OUT THE METHOD, AND EXTENSION UNIT
In large PV power plants, grounding of individual PV modules may lead to problems. The present invention overcomes such problems. The basis for the invention is a PV power plant comprising one or more PV generators, each comprising a PV string and an inverter with a DC input and an AC output. The PV string comprises at least one PV module and is electrically connected to the DC input of the inverter. The inverter comprises means for controlling the DC potential at the DC input depending on the DC potential at the AC output. The AC outputs of the inverters are coupled in parallel. The novel feature of the invention is that the PV power plant further comprises an offset voltage source, which controls the DC potential at the AC outputs. Thereby, the DC potential at the DC input will be indirectly controlled, and it is thus possible to ensure that the potentials with respect to ground at the terminals of the PV modules are all non-negative or all non-positive without grounding the PV modules. Ground loops can be avoided, and there is no need for the use of transformer-based inverters.
H02J 1/00 - Circuits pour réseaux principaux ou de distribution, à courant continu
H02J 3/00 - Circuits pour réseaux principaux ou de distribution, à courant alternatif
H02J 3/38 - Dispositions pour l’alimentation en parallèle d’un seul réseau, par plusieurs générateurs, convertisseurs ou transformateurs
H02J 3/46 - Dispositions pour l’alimentation en parallèle d’un seul réseau, par plusieurs générateurs, convertisseurs ou transformateurs contrôlant la répartition de puissance entre les générateurs, convertisseurs ou transformateurs
H02M 7/48 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif sans possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande
The application describes a converter for converting a direct current power to an alternating current power or vice-versa using a plurality of individual converters connected in parallel. Each of the individual converters include a power circuit and an internal controller configured to set the power flow through the corresponding individual converter depending on a DC voltage applied to a DC terminal of the corresponding individual converter. The converter also includes a higher-order controller configured to receive individual differential currents of each of the individual converters, to process same to form a setpoint value, and to transmit the setpoint value to the internal controllers of the individual converters. The internal controllers of the individual converters are configured to take into account the individual differential current and the transmitted setpoint value when setting the individual power flow that flows through the individual converter.
H02M 7/493 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif sans possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande les convertisseurs statiques étant agencés pour le fonctionnement en parallèle
H02M 7/217 - Transformation d'une puissance d'entrée en courant alternatif en une puissance de sortie en courant continu sans possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs
H02M 7/537 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif sans possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs, p. ex. onduleurs à impulsions à un seul commutateur
H02M 7/797 - Transformation d'une puissance d'entrée en courant alternatif en une puissance de sortie en courant continuTransformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif avec possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs
19.
METHOD FOR OPERATING AN ENERGY SUPPLY PLANT, ENERGY SUPPLY PLANT HAVING A PLURALITY OF INVERTERS AND INVERTER
The application relates to a method for operating an energy supply plant having a plurality of inverters and a plant controller which is in communicative connection with the inverters. The energy supply plant has a grid connection connected to an AC voltage grid. The inverters exchange electrical exchange power with the AC voltage grid via the grid connection, so that the energy supply plant exchanges a total exchange power with the AC voltage grid, which includes the respective electrical exchange powers. The plant controller determines individual inverter power setpoints depending on a plant setpoint for the total exchange power of the energy supply plant and transmits the individual inverter power setpoints to the controllers of the inverters. The respective inverter controllers set the respective exchange powers of the inverters depending on the inverter power setpoints. The inverter controllers are configured for gridforming, and the inverters provide instantaneous reserve power.
The application relates to a method for operating an inverter that has an H4 bridge circuit having a first half-bridge and a second half-bridge for converting an input-side direct voltage into an output-side alternating voltage and is configured for supplying electrical power of a direct voltage source with a variable potential relative to a ground potential, for example, of a photovoltaic generator with a leakage capacitance with respect to ground, to an alternating voltage grid. The method includes unipolar pulse-width-modulated clocking for each of the two half-bridges for the half-wave generation of substantially sinusoidal half-bridge voltages, and modifying the clocking of the half-bridges in a transition region around a zero crossing of the output-side alternating voltage to damp a leakage current (IA) that flows through the leakage capacitor to ground. The application also relates to an inverter and to a computer program product.
H02M 7/5387 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif sans possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs, p. ex. onduleurs à impulsions à un seul commutateur dans une configuration en pont
H02J 3/38 - Dispositions pour l’alimentation en parallèle d’un seul réseau, par plusieurs générateurs, convertisseurs ou transformateurs
The disclosure relates to a method for operating a power converter for exchanging electrical power (PDC, PAC) between a DC unit and an AC grid. The DC unit is connected to a DC terminal of the power converter and exchanges a DC power (PDC) with the power converter based on a DC voltage (UDC) at the DC terminal. The AC grid is connected to an AC terminal of the power converter and exchanges an AC power (PAC) with the power converter based on a deviation between an AC voltage profile (UAC) generated by a clocked bridge circuit of the power converter and a grid voltage profile (Ugrid) via the AC terminal. The power converter uses a grid-forming AC control system to adjust the AC voltage profile (UAC) based on an AC power control value (PAC,set ).
H02J 3/36 - Dispositions pour le transfert de puissance électrique entre réseaux à courant alternatif par l'intermédiaire de haute tension à courant continu
H02J 3/38 - Dispositions pour l’alimentation en parallèle d’un seul réseau, par plusieurs générateurs, convertisseurs ou transformateurs
H02M 7/5387 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif sans possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs, p. ex. onduleurs à impulsions à un seul commutateur dans une configuration en pont
The application relates to a method for operating a PV system (100) at an operating point (AP) having a DC voltage (U_DC) and a DC output. The PV system (100) has a PV generator (11) and an inverter system (20). The inverter system (20) is designed to convert the DC output (P_PV) of the PV generator (11) into a three-phase electric AC total output (P_AC) and has a primary inverter (10) and at least one secondary inverter (WR2, WR3,..., WRn). The inverters (10, WR2, WR3,..., WRn) are connected in parallel on the DC side and on the AC side. The method comprises operation of the at least one secondary inverter (WR2, WR3,..., WRn) by means of a droop control curve (12.2, 12.3,..., 12.N) stored in the inverters (10, WR2, WR3,..., WRn), by specifying a setpoint value (P2_s, P3_s ,..., Pn_s) for an individual output (P2, P3,..., Pn) of the at least one secondary inverter (WR2, WR3,..., WRn) as a function of the DC voltage (U_DC) at the operating point (AP) according to the droop control curve (12.2,..., 12.N). Furthermore, the method comprises operation of the primary inverter (10) by means of MPPT control (MPPT), by specifying a setpoint value (U_DC_s) for the DC voltage (U_DC) at the operating point (AP) and setting the setpoint value by varying the individual output (P1) of the primary inverter (10). The primary inverter (10) incrementally shifts the operating point (AP) along the DC voltage (U_DC), in order to maximize the total output of the PV generator (11) resulting from the individual output (P1) of the primary inverter (10) and the use of the stored droop control curve (12.2,..., 12.n) in the at least one secondary inverter (WR2, WR3,..., WRn). The application further relates to a PV system (100).
H02J 3/48 - Dispositions pour l’alimentation en parallèle d’un seul réseau, par plusieurs générateurs, convertisseurs ou transformateurs contrôlant la répartition de puissance entre les générateurs, convertisseurs ou transformateurs contrôlant la répartition de la composante en phase
23.
METHOD FOR OPERATING A POWER CONVERTER BY MEANS OF A GRID-FORMING CONTROLLER
DCACDCDCACACgridACAC,setACAClimlim)DCDCDC,setACACAC) and the AC power control value (PAC,set). The invention further relates to a power converter and to an energy supply
H02J 3/38 - Dispositions pour l’alimentation en parallèle d’un seul réseau, par plusieurs générateurs, convertisseurs ou transformateurs
H02J 3/48 - Dispositions pour l’alimentation en parallèle d’un seul réseau, par plusieurs générateurs, convertisseurs ou transformateurs contrôlant la répartition de puissance entre les générateurs, convertisseurs ou transformateurs contrôlant la répartition de la composante en phase
The invention relates to a method for starting a system (1) from a waiting state, having at least one battery inverter (10), at least one energy store (12), and at least one STATCOM (20), wherein the system (1) is connected, via a transformer (30) and a disconnecting switch (40), which is on the network side when viewed from the transformer (30), to a higher-level sub-network (100) with a higher nominal voltage than the nominal voltage (Unom) of the system (1), and the disconnecting switch (40) is open at the beginning of the method. The method has the steps of setting the system voltage (Usys) to a starting voltage (U1), which is less than half the nominal voltage of the system, by means of the at least one battery inverter; closing the disconnecting switch (40) so that the system (1) is connected to the higher-level sub-network (100); increasing the system voltage (Usys) in the system to the nominal voltage (Unom) by means of the at least one battery inverter (10); and stabilizing network parameters of the system (1) and the higher-level network (100) by means of the at least one STATCOM (20). The invention also relates to a system for stabilizing a power network which is designed to carry out the method.
H02J 3/38 - Dispositions pour l’alimentation en parallèle d’un seul réseau, par plusieurs générateurs, convertisseurs ou transformateurs
H02J 3/42 - Synchronisation d'un générateur pour sa connexion à un réseau ou à un autre générateur avec connexion automatique en parallèle quand le synchronisme est obtenu
25.
ELECTRONIC DRIVE CONTROLLER WITH SENSOR INTERFACE CIRCUIT FOR TEMPERATURE MEASUREMENT WITH RTD USING WIRE RESISTANCE COMPENSATION AND ELECTRIC MOTOR ASSEMBLY
An electronic drive controller (101; 201) for driving an electric motor (90) includes a reference connector (122; 222) connected to electric potential reference (GND); an analog input connector (123; 223); and an analog output connector (121; 221). The electronic drive controller (101; 201) comprises a sensor interface circuit (130; 230), which is connected to the electric reference connector (122; 222), the analog input connector (123; 223) and the analog output connector (121; 221), wherein the sensor interface circuit (130; 230) is configured for operating a resistance temperature detector (170; 270) with at least three (171, 172, 173; 271, 272, 273, 274) for temperature measurement with wire resistance compensation with applying an excitation current via the analog output connector (121; 221).
The invention relates to a device (20) for monitoring a fault current (IF) of an electrolysis system (100), wherein the device has two DC monitoring conductors (22) and a monitoring circuit (24) which is provided therebetween and has a ground connection (PE), and a respective DC monitoring conductor (22) can be connected to a respective DC conductor (DC+, DC-) of the electrolysis system (100), the monitoring circuit (24, 26, 28) being designed to simulate a potential position of the DC conductors (DC+, DC-), which have an intermediate ground connection (ZPE). The invention further relates to an electrolysis system (100), to a method for monitoring a fault current (IF) in an electrolysis system (100), and to a use of a device (20) for monitoring a fault current (IF) in an electrolysis system (100).
The invention relates to a method for supplying power (20) to an electrolysis system (100) having a plurality of electrolyzers (12.1, 12.2,... 12.n) and a plurality of power converters (10.1, 10.2,... 10.n). The electrolyzers (12.1, 12.2,… 12.n) are connected to respective power converters (10.1, 10.2,... 10.n) via respective DC lines (DC+, DC-). The power converters (10.1, 10.2,… 10.n) are electrically connected in parallel with one another to an AC network (18) on the AC side, in particular via a transformer (16). During the operation of the electrolysis system (100), at least one DC line (DC+, DC-) has a fixed reference to a ground potential (PE), in particular in that at least one DC_minus line (DC-) is connected to a ground potential (PE). The method has the steps of: - setting respective DC currents for the electrolyzers (12.1, 12.2,... 12.n) by means of the respective power converter (10.1, 10.2,... 10.n) in order to supply the respective electrolyzers (12.1, 12.2,... 12.n) on the basis of respective electrolyzer target values (SP1, SP2,... SPn), - determining a current ground reference of the electrolyzers (12.1, 12.2,... 12.n), and - limiting absolute values of DC_minus ground voltages (MU1, MU2,... MUn) of the DC_minus lines (DC-) with respect to the ground potential (PE) to a specifiable ground voltage limit value. The invention also relates to a power supply (20) for an electrolysis system (100) and to an electrolysis system (100).
C25B 15/02 - Commande ou régulation des opérations
H02H 3/14 - Circuits de protection de sécurité pour déconnexion automatique due directement à un changement indésirable des conditions électriques normales de travail avec ou sans reconnexion sensibles à la présence d'une tension sur les pièces normalement au potentiel de la terre
H02H 5/10 - Circuits de protection de sécurité pour déconnexion automatique due directement à un changement indésirable des conditions non électriques normales de travail avec ou sans reconnexion sensibles à une détérioration mécanique, p. ex. rupture de ligne, rupture de connexion de terre
H02H 9/08 - Limitation ou suppression des courants de défaut à la terre, p. ex. bobine Petersen
28.
SUPPLY UNIT FOR A DC LOAD, METHOD FOR OPERATING SAME, AND ELECTROLYSIS SYSTEM
The disclosure relates to a supply unit for a DC load, and includes a DC terminal for connecting to the DC load, a first AC terminal connected to a DC bus via a first AC/DC converter, a second AC terminal for connecting to a second AC voltage and which is connected to the DC terminal via a second AC/DC converter, an energy storage unit connected to the DC bus via a first DC/DC converter, a second DC/DC converter which connects the DC bus to the DC terminal and which can be operated in a current-controlling mode with respect to the DC terminal, and a control unit for controlling the supply unit.
The disclosure relates to a converter assembly for transmitting electric power between phases of a three-phase or multi-phase network and a DC bus. The converter assembly includes a DC/AC converter which can be connected to the network via a sine filter and to the DC bus via a split DC-side intermediate circuit, wherein a converter bridge of the DC/AC converter is connected to a central point (M) of the intermediate circuit, and a rectifier is connected in parallel with the DC/AC converter. The DC/AC converter has a controller which is configured to operate the DC/AC converter in an over-modulation mode if the voltage values of the DC bus are less than double the amplitude of one of the phase voltages of the network.
H02M 7/493 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif sans possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande les convertisseurs statiques étant agencés pour le fonctionnement en parallèle
30.
METHOD FOR COMPOSING STRUCTURE AND ITEMS FOR CONSISTENT MENUS IN USER INTERFACES
A user interface includes a display (302) for presenting a menu structure, an input interface (303) for enabling a user to navigate within the menu structure and to feed input data, a memory system (304) storing first menu data (306) defining the menu structure, and a data processing system (305) that controls the display to present the menu structure in accordance with the first menu data. The memory system stores second menu data (307) defining which of menu items defined by the first menu data correspond to functionality of an electric device or system, and the display is controlled to present, as active and selectable menu items, only those menu items which correspond to the functionality. As the menu structure defined by the first menu data can be used in different electric devices and systems, the menu structures of these electric devices and systems can be similar with consistent appearances.
G06F 3/0482 - Interaction avec des listes d’éléments sélectionnables, p. ex. des menus
G06F 3/04845 - Techniques d’interaction fondées sur les interfaces utilisateur graphiques [GUI] pour la commande de fonctions ou d’opérations spécifiques, p. ex. sélection ou transformation d’un objet, d’une image ou d’un élément de texte affiché, détermination d’une valeur de paramètre ou sélection d’une plage de valeurs pour la transformation d’images, p. ex. glissement, rotation, agrandissement ou changement de couleur
G06F 3/04886 - Techniques d’interaction fondées sur les interfaces utilisateur graphiques [GUI] utilisant des caractéristiques spécifiques fournies par le périphérique d’entrée, p. ex. des fonctions commandées par la rotation d’une souris à deux capteurs, ou par la nature du périphérique d’entrée, p. ex. des gestes en fonction de la pression exercée enregistrée par une tablette numérique utilisant un écran tactile ou une tablette numérique, p. ex. entrée de commandes par des tracés gestuels par partition en zones à commande indépendante de la surface d’affichage de l’écran tactile ou de la tablette numérique, p. ex. claviers virtuels ou menus
H02M 7/42 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif sans possibilité de réversibilité
31.
POWER ELECTRONIC CONVERTER, ELECTRIC MOTOR DRIVE AND METHOD FOR OPERATING A POWER ELECTRONIC CONVERTER
The present invention pertains to a power electronic converter, such as an inverter or converter, for an electric application such as a motor drive, electrolyzer or charger. The power electronic converter includes a DC link and an active front end (AFE) connected to grid via a filter and a grid board with a first inrush relay with a resistive device. The resistive device may be a resistor, more specifically an NTC resistor or a PTC thermistor. The grid board further includes a second inrush relay, wherein at least one of the inrush relays is controlled to engage or disengage during startup phase of the power electronic converter and during abnormal grid voltage conditions, such that the DC link is charged via the resistive device or by bypassing the resistive device, and such that the AFE is provided for boosting the DC link voltage to a save level and under controlled conditions. The invention also pertains to an electric motor drive according and a method for operating a power electronic converter.
H02H 7/10 - Circuits de protection de sécurité spécialement adaptés aux machines ou aux appareils électriques de types particuliers ou pour la protection sectionnelle de systèmes de câble ou de ligne, et effectuant une commutation automatique dans le cas d'un changement indésirable des conditions normales de travail pour convertisseursCircuits de protection de sécurité spécialement adaptés aux machines ou aux appareils électriques de types particuliers ou pour la protection sectionnelle de systèmes de câble ou de ligne, et effectuant une commutation automatique dans le cas d'un changement indésirable des conditions normales de travail pour redresseurs
H02H 9/00 - Circuits de protection de sécurité pour limiter l'excès de courant ou de tension sans déconnexion
H02J 3/00 - Circuits pour réseaux principaux ou de distribution, à courant alternatif
H02J 3/18 - Dispositions pour réglage, élimination ou compensation de puissance réactive dans les réseaux
32.
Device and method for the voltage equalization of a plurality of two-terminal networks, and DC power distribution system
The disclosure is directed to a device for voltage equalization of a plurality of two-terminal networks. The device includes a current-limiting component, and connection pairs, each having a first connection and a second connection for connecting the two-terminal networks. Two or more of the first connections are each connected to an input. In addition, two or more of the first connections are each connected to an output via a second switch. The second connections are connected or switchably connected to a common reference potential. The device sets switching states of switches by means of a control unit and/or by means of voltages applied to the first connections in such a manner that the current-limiting component intakes power in its input and not in its output, and the current-limiting component outputs power from its output and not from its input.
H02J 1/08 - Systèmes à trois filsSystèmes ayant plus de trois fils
H02M 3/156 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu sans transformation intermédiaire en courant alternatif par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs avec commande automatique de la tension ou du courant de sortie, p. ex. régulateurs à commutation
33.
FIXTURE FOR HOLDING CAPACITORS AND ELECTRIC MOTOR DRIVE WITH A FIXTURE
The present invention is directed at a fixture for an electric device such as an electric motor drive, electrolyser or frequency converter. The fixture is provided for holding capacitors and PCBAs of different sizes and/or at different positions relative to the electric device. The fixture includes at least one protruding portion with supports and preferably a wall for holding a capacitor. The fixture also includes a reception portion with a connection feature for receiving a nut of a stand-off portion, wherein the stand-off portion is provided for connecting a first PCBA such as a PCBA including large capacitors to a power PCBA and wherein the protruding portion and the reception portion are provided on a main portion of the fixture. The invention is also directed at an electric application such as an electric motor drive, electrolyser or frequency converter with a fixture for holding capacitors and PCBAs.
09 - Appareils et instruments scientifiques et électriques
42 - Services scientifiques, technologiques et industriels, recherche et conception
Produits et services
Data communications software; computer software for controlling and managing access server applications; database server software; data management software; interactive database software; computer software for database management; application software for cloud computing services; energy management software; industrial process control software; production support software; security software; cryptography software; computer software for authorising access to databases; computer software for the creation of firewalls; cloud server software; cloud network monitoring software; computer programmes for data processing; interactive databases; software; cloud servers; data transmission networks; Internet of things [IoT] gateways; computer networking and data communications equipment; data processing systems. Computer security threat analysis for protecting data; authentication services for computer security; telecommunication network security consultancy; computer programming services for electronic data security; data security services [firewalls]; computer security services in the nature of administering digital certificates; computer security system monitoring services; cloud-based data protection services; consultancy in the field of security software; cloud hosting provider services; electronic data storage and data back-up services; design and development of Internet security programs; maintenance of computer software relating to computer security and prevention of computer risks; installation and maintenance of computer programs; development, updating and maintenance of software and database systems; software development; maintenance and updating of computer software; custom design of software packages; data security services; data encryption services; data security consultancy; development of systems for the processing of data.
09 - Appareils et instruments scientifiques et électriques
42 - Services scientifiques, technologiques et industriels, recherche et conception
Produits et services
Data communications software; computer software for controlling and managing access server applications; database server software; data management software; interactive database software; computer software for database management; application software for cloud computing services; energy management software; industrial process control software; production support software; security software; cryptography software; computer software for authorising access to databases; computer software for the creation of firewalls; cloud server software; cloud network monitoring software; computer programmes for data processing; interactive databases; software; cloud servers; data transmission networks; Internet of things [IoT] gateways; computer networking and data communications equipment; data processing systems. Computer security threat analysis for protecting data; authentication services for computer security; telecommunication network security consultancy; computer programming services for electronic data security; data security services [firewalls]; computer security services in the nature of administering digital certificates; computer security system monitoring services; cloud-based data protection services; consultancy in the field of security software; cloud hosting provider services; electronic data storage and data back-up services; design and development of Internet security programs; maintenance of computer software relating to computer security and prevention of computer risks; installation and maintenance of computer programs; development, updating and maintenance of software and database systems; software development; maintenance and updating of computer software; custom design of software packages; data security services; data encryption services; data security consultancy; development of systems for the processing of data.
36.
ELECTRIC MOTOR DRIVE AND ENCLOSURE FOR AN ELECTRIC MOTOR DRIVE
The present invention pertains to an electric motor drive including a housing with a cooling portion and a cable connection portion, a connection frame connected to the housing and a cover for covering the cable connection portion. According to the invention, the cover is connected to the housing and the frame for at least partially covering the cable connection portion. The invention is also directed at an enclosure for an electric motor drive.
A user interface for configuring an electric device (301) includes a memory system (304) storing wizard data (307) specifying a wizard defining a path through items of configuration data (309) of the electric device. The user interface includes a data processing system (305) for executing the wizard and controlling, during executing the wizard, a display (302) to present the wizard and controlling an input interface (303) to enable a user to supply the configuration data. The wizard is hierarchical and modular, and the user is enabled, during execution of a higher-level module, to configure the wizard via the input interface by defining which lower-level modules of the wizard the user will be guided through in the execution of the wizard. Thus, the wizard is a flexible guide, allowing the user to define what to be guided through, and the wizard can be adapted to various maintenance situations.
09 - Appareils et instruments scientifiques et électriques
35 - Publicité; Affaires commerciales
39 - Services de transport, emballage et entreposage; organisation de voyages
40 - Traitement de matériaux; recyclage, purification de l'air et traitement de l'eau
42 - Services scientifiques, technologiques et industriels, recherche et conception
Produits et services
Batteries; Apparatus and instruments for accumulating and storing electricity; Apparatus and instruments for controlling the distribution of electricity; Apparatus and instruments for controlling electricity; Apparatus and instruments for conducting electricity; Apparatus and instruments for transforming electricity; Inverters [electricity]; Mobile apps; Software; Energy management software; Electric control devices for energy management; Apparatus and instruments for controlling the use of electricity; Apparatus for measuring, monitoring and analyzing electricity consumption; Uninterruptible power supply apparatus [battery]; Uninterruptible electrical power supplies; Apparatus and instruments for accumulating electricity. Billing services in the field of energy; Energy price comparison services; Tracking and monitoring energy consumption for others for account auditing purposes; Cost price analysis. Distribution of energy; Information and advisory services in relation to the distribution of energy. Energy production; Generation of power; Consultancy services relating to the generation of electrical power. Programming of energy management software; Development of energy and power management systems; Technological analysis relating to energy and power needs of others; Design and development of software in the field of mobile applications; Design and development of energy management software; Design and development of software for control, regulation and monitoring of solar energy systems; Technological consultancy in the fields of energy production and use; Providing technical advice relating to energy-saving measures; Technological consulting services in the field of alternative energy generation; Engineering services in the field of energy technology; Engineering services relating to energy supply systems; Design, development and programming of computer software; Hosting of mobile applications; Software development, programming and implementation.
39.
TRANSMITTER UNIT AND METHOD FOR COUPLING AN ELECTRICAL TRANSMISSION SIGNAL INTO A DC VOLTAGE LINE
The application relates to a transmitter circuit for coupling a transmission signal into a DC voltage line with two output terminals between which the transmission signal is applied and which are provided for connecting to coupling circuitry in the DC voltage line. The transmitter circuit includes an amplifier circuit with a clocked amplifier, and the amplitude of the transmission signal is proportional to a supply voltage of the clocked amplifier. The transmitter circuit includes a compensation circuit which is configured to detect the amplitude of the transmission signal via a differential voltage measurement at the output terminals and to set the supply voltage of the clocked amplifier depending on the amplitude of the transmission signal. The application also relates to a photovoltaic inverter comprising a transmitter circuit and to a method for coupling a transmission signal into a DC voltage line.
H03F 3/217 - Amplificateurs de puissance de classe DAmplificateurs à commutation
H02S 40/32 - Composants électriques comprenant un onduleur CC/CA associé au module PV lui-même, p. ex. module CA
H03F 1/02 - Modifications des amplificateurs pour augmenter leur rendement, p. ex. étages classe A à pente glissante, utilisation d'une oscillation auxiliaire
An energy production plant with a power converter circuit for connection to a PV generator is disclosed. The PV generator includes a plurality of PV main strings connected in parallel and are each connected to the power converter circuit via two DC input lines on an input side thereof via a DC link circuit. A monitoring circuit including a differential current measuring sensor/circuit, an isolating circuit/switch and a controller is assigned to each pair of DC input lines. The controller of the monitoring circuit is configured to switch the isolating circuit/switch and isolate the PV main string after a fault has been identified when a differential current threshold is exceeded. At least a defined discharge capacitance to earth is arranged as a feedback path for an earth current measurement by the differential current measuring sensor/circuit at least one pole of the DC link circuit.
H02H 7/20 - Circuits de protection de sécurité spécialement adaptés aux machines ou aux appareils électriques de types particuliers ou pour la protection sectionnelle de systèmes de câble ou de ligne, et effectuant une commutation automatique dans le cas d'un changement indésirable des conditions normales de travail pour équipement électronique
H02H 1/00 - Détails de circuits de protection de sécurité
41.
INVERTER ARRANGEMENT AND METHOD FOR INTERMEDIATE CIRCUIT BALANCING
The application relates to an inverter arrangement (10) in a supply unit (20) for supplying a load (22), wherein the inverter arrangement (10) has at least one divided intermediate circuit (12) and at least two bridges (14, 14.A, 14.B) connected in parallel with their respective AC outputs (16.A, 16.B) to an AC terminal (18) of the inverter arrangement (10), wherein it is provided to balance the DC voltages (UDClPos, UDClNeg) in the parts of the divided intermediate circuit (12) and, for balancing, to switch at least one bridge (14.A, 14.B) between a two-stage and a three-stage operation and to control a cross current current (IACQ) flowing between the AC outputs (16.A, 16.B) of the bridges (14.A, 14.B). The application further relates to a supply unit (20), and to a method for intermediate circuit balancing.
H02M 7/493 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif sans possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande les convertisseurs statiques étant agencés pour le fonctionnement en parallèle
42.
METHOD FOR CONSTRUCTING A DECENTRALIZED DATA COMMUNICATION STRUCTURE WITHIN A SYSTEM HAVING A PLURALITY OF COMPONENTS
A method for constructing a decentralized data communication structure within a system having a plurality of components, wherein each component contains a private key, an associated public key, a secret secured against read-out, and certificate information that is unsigned in the initial state and contains the public key, includes establishing a registering component of the plurality of components, wherein the establishment includes storing a list of validation entries, constructing a tamper-proof channel between the registering component and a first component of the other components, and authenticating the first component at the registering component and authentificating the first component using the list of validation entries via the tamper-proof channel. The authentication comprises signing the unsigned certificate information of the first component by the registering component via the tamper-proof channel. A system such as an energy generation plant having a plurality of components is configured to carry out the method.
H04L 9/32 - Dispositions pour les communications secrètes ou protégéesProtocoles réseaux de sécurité comprenant des moyens pour vérifier l'identité ou l'autorisation d'un utilisateur du système
In a method for operating a PV generator (11) at the operating point of maximum power (MPP, 22) by means of an inverter (12) for converting electrical DC power (P_PV, P_DC) of the PV generator (11) into electrical AC power (P_AC), the PV generator (11) has a PV characteristic curve (21) and the inverter (12) is operated using a droop control curve (31). In this case, the droop control curve (31) specifies target values for the power (P_DC, PAC) of the inverter (12) on the basis of a DC voltage (U_DC) of the inverter (12), wherein the inverter (12) uses a power-electronic bridge circuit to set an actual value of the power (P_DC, P_AC) to the target value specified by the droop control curve (31) for the present DC voltage (U_DC), such that, during the operation of the PV generator (11), a working point (41) is adopted which corresponds to the intersection point between the present droop control curve (31) and the present PV characteristic curve (21). By iterative MPP tracking, the droop control curve (31) is changed step by step in order to shift the operating point (41) along the DC voltage (U_DC). The resulting actual value of the power (P_DC, P_AC) is detected, and the droop control curve (31) is changed in each tracking step such that the operating point (41) is shifted in a direction which depends on a direction of a change in the actual value of the power (P_DC, P_AC) at the operating point (41) owing to the change in the droop control curve (31) in a preceding tracking step. A further method relates to the operation of a PV generator (11) by means of at least two inverters (12) connected in parallel on the DC side and on the AC side. The invention also relates to an inverter (12) and to a device for carrying out the aforementioned method.
H02J 3/38 - Dispositions pour l’alimentation en parallèle d’un seul réseau, par plusieurs générateurs, convertisseurs ou transformateurs
H02J 13/00 - Circuits pour pourvoir à l'indication à distance des conditions d'un réseau, p. ex. un enregistrement instantané des conditions d'ouverture ou de fermeture de chaque sectionneur du réseauCircuits pour pourvoir à la commande à distance des moyens de commutation dans un réseau de distribution d'énergie, p. ex. mise en ou hors circuit de consommateurs de courant par l'utilisation de signaux d'impulsion codés transmis par le réseau
44.
FAIL-SAFE DISCONNECTING UNIT, RECTIFIER HAVING A FAIL-SAFE DISCONNECTING UNIT, AND METHOD FOR OPERATING A RECTIFIER
The invention relates to a fail-safe disconnecting unit (100, 200) having a DC connection (12) for connecting a DC load (30) and an AC connection (11) for connecting an AC network (20), wherein the disconnecting unit (100, 200) is designed to safely disconnect a power path between the DC connection (12) and the AC connection (11), wherein the disconnecting unit (100, 200) has an activatable and deactivatable alarm device (102) and two electromagnetic switch units (K1, K2) arranged in the power path between the AC connection (11) and the DC connection (12), wherein a first switch unit (K1) is arranged in a DC region of the power path and wherein a second switch unit (K2) is arranged in an AC region of the power path, wherein the disconnecting unit (100, 200) is designed, in an activated state of the alarm device (102), to control the first switch unit (K1) with a target state, to open a first main contact (K1.1) of the first switch unit (K1) in order to disconnect the power path in the DC region, and, depending on an actual state of the first main contact (K1.1), to separate the power path in the AC region by means of the second switch unit (K2). The invention also relates to a rectifier (10) and to a method for operating a rectifier (10).
H02H 7/125 - Circuits de protection de sécurité spécialement adaptés aux machines ou aux appareils électriques de types particuliers ou pour la protection sectionnelle de systèmes de câble ou de ligne, et effectuant une commutation automatique dans le cas d'un changement indésirable des conditions normales de travail pour convertisseursCircuits de protection de sécurité spécialement adaptés aux machines ou aux appareils électriques de types particuliers ou pour la protection sectionnelle de systèmes de câble ou de ligne, et effectuant une commutation automatique dans le cas d'un changement indésirable des conditions normales de travail pour redresseurs pour convertisseurs ou redresseurs statiques pour redresseurs
H02H 3/05 - Circuits de protection de sécurité pour déconnexion automatique due directement à un changement indésirable des conditions électriques normales de travail avec ou sans reconnexion Détails avec des moyens pour accroître la fiabilité, p. ex. dispositifs redondants
H01H 71/46 - Mécanismes de déclenchement automatique avec ou sans déclenchement manuel comportant des moyens pour actionner des contacts auxiliaires en complément aux contacts principaux
H01H 9/00 - Détails de dispositifs de commutation non couverts par
H01H 9/16 - Indicateurs de position, p. ex. "marche" ou "arrêt"
H02H 5/06 - Circuits de protection de sécurité pour déconnexion automatique due directement à un changement indésirable des conditions non électriques normales de travail avec ou sans reconnexion sensibles à une température anormale dans un appareil électrique rempli d'huile
H02H 5/08 - Circuits de protection de sécurité pour déconnexion automatique due directement à un changement indésirable des conditions non électriques normales de travail avec ou sans reconnexion sensibles à une pression de fluide, à un niveau de liquide ou à un déplacement de liquide anormal, p. ex. relais Buchholz
45.
METHOD FOR OPERATING AN ISLAND NETWORK, AND SHORT-CIRCUIT CURRENT SOURCE
The application relates to a method for operating an electrical island network (40) having at least one load (28) by means of an energy supply system (30), wherein the energy supply system (30) has a first energy source (22), a network-forming power-electronics inverter (20) and a short-circuit current source (10) having a bridge circuit (12), the method comprising: • operating the energy supply system (30) in an energy supply mode (EVM), wherein in the energy supply mode (EVM), the inverter (20) supplies the island network (40) with electrical power from the first energy source (22) at a supply voltage (U_n) and a nominal frequency (f_n), • operating the energy supply system (30) in a fault mode (FM), wherein in the fault mode (FM), the short-circuit current source (10) feeds a substantially square-wave short-circuit current (I_GTO) into the island network (40) by means of the bridge circuit (12). The application also relates to a short-circuit current source (10), to an energy supply system (30) and to an island network (40).
The disclosure relates to a housing of an electrical device for converting electrical power, including a main body and a cover. The cover closes the main body to define a self-contained interior space, wherein electrical and electronic components of the electrical device are arranged in the interior space of the housing. The cover is connected to the main body via a detachable securing structure, which may be arranged in the geometrical center of the cover. An electrical device has a housing of this type.
The invention relates to a bypass and connection circuit (1) comprising a first terminal (11) for connection to a positive pole of a solar generator and a second terminal (22) for connection to a negative pole of the solar generator, the circuit comprising a series circuit which is arranged between the first terminal (11) and the second terminal (22) and has a first diode (2), a capacitor (3), and a first semiconductor switch (S1), the first diode (2) and the first semiconductor switch (S1) having a common orientation in a forward-conduction direction towards the second terminal (22), and a second semiconductor switch (S2) which is arranged in parallel with the part of the series circuit formed by the first diode (2) and the capacitor (3), wherein the second semiconductor switch (S2) has an orientation opposite to the orientation of the first diode (2). The circuit comprises a drive circuit (4) which is provided and designed to switch at least the second semiconductor switch (S2) into a conducting state when a voltage applied across the capacitor (3) exceeds a first threshold value, and to switch it into a blocking state when the voltage falls below a second threshold value which is lower than the first threshold value.
H03K 17/30 - Modifications pour fournir un seuil prédéterminé avant commutation
H03K 17/687 - Commutation ou ouverture de porte électronique, c.-à-d. par d'autres moyens que la fermeture et l'ouverture de contacts caractérisée par l'utilisation de composants spécifiés par l'utilisation, comme éléments actifs, de dispositifs à semi-conducteurs les dispositifs étant des transistors à effet de champ
48.
CONVERTER AND METHOD FOR OPERATING A DC SUPPLY NETWORK
The disclosure relates to a method for operating a DC supply network which is connected to an AC supply network via an active AC/DC converter and a star-point-grounded transformer. At least one disconnecting element is arranged between the AC supply network and the transformer and at least one device for supplying direct current independently of the AC supply network is provided in the DC supply network. The method includes stopping the conversion of alternating current to direct current, disconnecting the transformer from the AC supply network, supplying power to the DC supply network, and operating the converter to convert direct current to alternating current and applying AC voltage to at least two secondary windings of the transformer.
A system and method for electrical power conversion is disclosed. The system includes at least one power converter with an intermediate circuit and a bridge circuit, and is connected on a DC side to at least one DC unit, and on an AC side to an AC grid. The at least one power converter can be connected to the at least one DC unit by means of at least one DC switch and to the AC grid by means of at least one AC switch. The method includes the formation of an auxiliary network for supplying power to system components; connecting to the AC grid without connecting to the at least one DC unit; and a connecting the AC grid and the at least one connected DC generator to facilitate a power exchange between the AC grid and the at least one DC unit.
H02M 1/32 - Moyens pour protéger les convertisseurs autrement que par mise hors circuit automatique
H02M 7/537 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif sans possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs, p. ex. onduleurs à impulsions à un seul commutateur
In an operating method for an energy generation plant (1), the input side of which is connected to a solar generator (2) via a clockable electromechanical switch (3) of the energy generation plant (1), the output side of the energy generation plant (1) being connected to a grid (9) via a grid isolating switch (4), wherein an inverter (7) of the energy generation plant (1) converts the current of the solar generator (2) supplied via a DC bus (13) for feeding into the grid (9), and wherein a supercap storage device (5) is connected to the DC bus (13) via a fuse (10), having a trip current lower than the short-circuit current of the solar generator (2), and an isolating switch (6) , the isolating switch (6) is first of all closed when the grid isolating switch (4) is open and the clockable switch (3) is open, then the clockable switch (3) is clocked with a clock pattern, which excludes tripping of the fuse (10), until a voltage of the DC bus (13) and a voltage of the supercap storage device (5) have been balanced, and then it is closed. The grid isolating switch (6) can then be closed and a current of the solar generator (2) converted by the inverter (7) can be fed into the grid (9). A corresponding energy generation plant (1) is also described.
H02J 3/00 - Circuits pour réseaux principaux ou de distribution, à courant alternatif
H02J 3/14 - Circuits pour réseaux principaux ou de distribution, à courant alternatif pour règler la tension dans des réseaux à courant alternatif par changement d'une caractéristique de la charge du réseau par interruption, ou mise en circuit, des charges du réseau, p. ex. charge équilibrée progressivement
H02J 3/38 - Dispositions pour l’alimentation en parallèle d’un seul réseau, par plusieurs générateurs, convertisseurs ou transformateurs
The disclosure relates to an electronic control box (1) that includes a housing (2) with at least a first part (3) and a second part (4). The electronic control box (1) further includes an electronic controller unit (5) and at least one human control interface (6). The electronic controller unit (5) is mounted in the first part (3) of the housing (2) and the human control interface (6) is arranged in at least one section of the second part (4) of the housing (2). At least one rigid information transmitting device (7, 8) is used that is designed and arranged to transmit an optical (8) and/or an electrical (7) signal between the electronic controller unit (5) and the human control interface (6). The at least one rigid information transmitting device (7, 8) is placed between the electronic controller unit (5) and the human control interface (6), and is separate from the electronic controller unit (5) and the human control interface (6).
The application relates to a method for operating an electrolysis plant (20) having an electrolyzer (14) and a power converter (10), the power converter (10) being set up to supply active DC power (P-DC) at a DC voltage (U-DC) from an AC grid (12) to the electrolyzer (14), the method comprising: • operating the power converter (10) in a first operating mode (BM1) in which the power converter (10) draws active AC power (P_AC) from the AC grid (12) and exchanges reactive AC power (Q_AC) for supporting the AC grid (12) with the AC grid (12), • monitoring the active AC power (P_AC) drawn from the AC grid (12) in the first operating mode (BM1) and the DC voltage (U_DC), and • changing the operating mode if the active AC power (P_AC) drawn from the AC grid (12) falls below a predefinable minimum power and the DC voltage (49) at the electrolyzer (49) falls below a predefinable minimum voltage (U_min). The application further relates to an electrolysis plant (20).
H02J 3/14 - Circuits pour réseaux principaux ou de distribution, à courant alternatif pour règler la tension dans des réseaux à courant alternatif par changement d'une caractéristique de la charge du réseau par interruption, ou mise en circuit, des charges du réseau, p. ex. charge équilibrée progressivement
H02J 3/16 - Circuits pour réseaux principaux ou de distribution, à courant alternatif pour règler la tension dans des réseaux à courant alternatif par changement d'une caractéristique de la charge du réseau par réglage de puissance réactive
H02J 3/38 - Dispositions pour l’alimentation en parallèle d’un seul réseau, par plusieurs générateurs, convertisseurs ou transformateurs
53.
METHOD AND CONTROL CIRCUIT FOR REDUCING HARMONIC POWER FLOWS, AND SUB-NETWORK HAVING CONTROL UNIT
A method for reducing harmonic power flows via a connection point at which a sub-network is connected to a higher-level AC supply network and via which a network current flows between the sub-network and the higher-level AC supply network is disclosed.
The application relates to a PV system (10) having an inverter (14) and having at least one collecting unit (20) for PV strings (12). The collecting unit (20) has a plurality of inputs for PV strings (12) and has an output, wherein the inputs are connected in parallel in the collecting unit (20) and are switchably connected to the output of the collecting unit (20). The output of the at least one collecting unit (20) is switchably connected to a two-pole DC bus (16), and the DC bus (16) is switchably connected to a bridge circuit (18) of the inverter (14). According to the application, the at least one collecting unit (20) is assigned a residual-current circuit breaker (21) which is arranged between the point at which the PV strings (12) are connected in parallel and the DC bus (16). The residual-current circuit breaker (21) is designed to break the connection between the PV strings (12) and the DC bus (16) if a residual current on the connection between the PV strings (12) and the DC bus (16) exceeds a specifiable limit value. The PV system is characterized in that the residual-current circuit breaker (21) is designed to maintain the connection between the PV strings (12) and the DC bus (16) even in the presence of an inherently inadmissible residual current and/or to prevent the breaking of the connection between the PV strings (12) and the DC bus (16) if a passivation signal (30) is applied to the residual-current circuit breaker (21). The application also relates to a method for operating a corresponding PV system (10) and to a collecting unit (20) for PV strings (12) of a PV system (10).
The invention relates to an energy conversion device (1) having a battery (BAT) with connections (BAT+, BAT-), a symmetrical voltage controller (10) which is connected to the connections (BAT+, BAT-) of the battery (BAT) via at least one filter (F), a divided intermediate circuit, and at least one inverter bridge (B1; B2; B3) for providing an alternating voltage. The at least one inverter bridge (B1; B2; B3) has a positive DC voltage connection (DC+), a negative DC voltage connection (DC-) and a centre tap (M). The symmetrical voltage controller (10) is connected to the positive DC voltage connection (DC+), the negative DC voltage connection (DC-) and the centre tap (M) and is configured to adjust a potential layer of the battery (BAT) with respect to the centre tap (M). The symmetrical voltage controller (10) is further configured to adjust the voltage at the connections (BAT+, BAT-) of the battery (BAT) with respect to the centre tap (M) such that an intermediate circuit voltage difference between a voltage of a first intermediate circuit half between the positive DC voltage connection (DC+) and the centre tap (M) and a voltage of a second intermediate circuit half between the centre tap (M) and the negative DC voltage terminal (DC-) is reduced.
H02M 3/158 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu sans transformation intermédiaire en courant alternatif par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs avec commande automatique de la tension ou du courant de sortie, p. ex. régulateurs à commutation comprenant plusieurs dispositifs à semi-conducteurs comme dispositifs de commande finale pour une charge unique
57.
CLAMPING DEVICE, AND METHOD FOR PRODUCING A CLAMPING ACTION
The invention relates to a clamping device (10, 20, 30) for cable-like material to be clamped, wherein the clamping device (10, 20, 30) has a base plate (12, 22, 32), a counterpressure plate (14, 24, 34), and a pressure body (16, 26, 36). The base plate (12, 22, 32) has a U-shaped profile and is designed to receive the material to be clamped. The legs of the base plate (12, 22, 32) are bent inwards at each of their ends, and the counterpressure plate (14, 24, 34) can be received between the legs (13, 23, 33) of the base plate (12, 22, 32), wherein a first and a second side of the counterpressure plate (14, 24, 34) extend along an associated leg (13, 23, 33) of the base plate (12, 22, 32). The pressure body (16, 26, 36) has a U-shaped profile into which the counterpressure plate (14, 24, 34) can be inserted, wherein a third and a fourth side of the counterpressure plate (14, 24, 34) extend along an associated leg (17, 27, 37) of the pressure body (16, 26, 36). The pressure body (16, 26, 36) can be connected to the counterpressure plate (14, 24, 34) by means of a screw connection (11, 21.1, 21.2, 31.1, 31.2) in such a way that, when the screw connection (11, 21.1, 21.2, 31.1, 31.2) is actuated while the counterpressure plate (14, 24, 34) is received between the legs of the base plate (12, 22, 32), the pressure body (16, 26, 36) is displaced along an axis parallel to the legs of the base plate (12, 22, 32). The invention also relates to a method for producing a clamping action for material to be clamped.
H02G 3/32 - Installations de câbles ou de lignes sur les murs, les sols ou les plafonds utilisant des colliers de fixation
F16L 3/10 - Supports pour tuyaux, pour câbles ou pour conduits de protection, p. ex. potences, pattes de fixation, attaches, brides, colliers entourant pratiquement le tuyau, le câble ou le conduit de protection fractionnés, c.-à-d. à deux éléments en prise avec le tuyau, le câble ou le conduit de protection
The invention relates to an electrolyzer system (1), comprising at least two electrolysis units (10) which are connected in series, wherein each electrolysis unit has one pole (10a) and one other pole (10b), insulating elements (12), grounded end plates (12a), and a supply unit (14) which is connected to a first and a last electrolysis unit (10) of the at least two electrolysis units (10) connected in series and is configured to supply the at least two electrolysis units (10) with electrical power, one of the poles (16, 18) of the supply unit being grounded via a grounding switch (20). The electrolyzer system (1) is characterized in that the electrolyzer system (1) has a protective device (22), said protective device (22) being configured to measure a fault current between a grounded end plate (12a) and the grounded pole (16, 18) and, if the fault current exceeds a limit value, to open the grounding switch (20).
The present disclosure pertains to a method for estimating rotational inertia of an electric motor and load system during normal operation and invariant load characteristics of the system. The method includes the steps of operating the electric motor via an electric motor drive in a normal operation mode with invariant load characteristics; estimating instantaneous mechanical power; calculating the difference in power integrals during speed ramp-up and ramp-down of the electric motor, wherein the speed ramp-up and ramp-down correspond to transients and/or perturbations; and calculating rotational inertia from the measured power difference integrals. The disclosure also pertains to an electric motor drive provided for executing said method.
The present invention relates to a switching device (10) for supplying a load (50) selectively in a mains mode or in an isolated mode, comprising: - a mains connection (14) having a first phase conductor connection (14p) and a first neutral conductor connection (14n), - an inverter connection (18) having at least two connection terminals (18p, 18p2, 18n) for connecting a bidirectional inverter (30), and - a load connection (15) having a second phase conductor connection (15p) and a second neutral conductor connection (15n), - a mains monitoring switch (11) having a monostable contact (11.2) which can be actuated by an actuating coil (11.1), - an electromechanical switching unit (12) having an actuator (12.1), a first switching contact (12.2) and a forcibly guided auxiliary contact (12.6), wherein the first switching contact (12.2) is arranged in a connection line between the first phase conductor connection (14p) and a connection terminal (18p) of the inverter connection (18), which connection terminal is assigned to the first phase conductor connection (14p), and - a status connection (16) having a power circuit (13) connected thereto for signalling a state of the switching device (10). The invention also relates to an emergency power system (100) having such a switching device (10) and to a method for operating the emergency power system (100).
H02J 3/00 - Circuits pour réseaux principaux ou de distribution, à courant alternatif
H02J 9/06 - Circuits pour alimentation de puissance de secours ou de réserve, p. ex. pour éclairage de secours dans lesquels le système de distribution est déconnecté de la source normale et connecté à une source de réserve avec commutation automatique
In order to detect the failure of switch-off devices which are designed to be able to reduce the DC voltages within a PV generator below a certain limit value in an emergency, the DC voltage at a DC input of the inverter of the PV system is continuously varied. Jumps in the current or in the power of the PV generator are detected depending on the DC voltage, and an actual number of switched-on or switched-off switch-off devices is determined from the absolute levels and the number of jumps, and is compared with a target value.
The invention relates to a DC/DC converter (10, 20) for the transfer of electrical power between a first DC connection (12) and a second DC connection (14), wherein the first DC connection (12) has a first positive pole (P1+) and a first negative pole (P1-) and is designed for two-pole connection to a unipolar DC source, in particular to a photovoltaic generator, wherein the second DC connection (14) has a second positive pole (P2+) and a second negative pole (P2-) and a center pole (PM) and is designed for three-pole connection to a bipolar load, in particular to a three-level DC/AC converter (16), wherein the DC/DC converter (10, 20) has a bridge circuit which has a first series circuit of a first semiconductor element (T1) and a second semiconductor element (T2) between the second positive pole (P2+) and the center pole (PM) as well as a second series circuit of a third semiconductor element (T3) and a fourth semiconductor element (T4) between the center pole (PM) and the second negative pole (P2-), wherein the first positive pole (P1+) is connected via a first connection to a first center tap between the first and the second semiconductor element (T1, T2), wherein the first negative pole (P1-) is connected via a second connection to a second center tap between the third and the fourth semiconductor element (T3, T4), wherein a first choke (L1) is arranged in the first connection and a second choke (L2) is arranged in the second connection, wherein the first choke and the second choke (L1, L2) are symmetrical to one another. The invention also relates to a method for operating a DC/DC converter (10, 20), and to an inverter (30) having a DC/DC converter (10, 20) and a method for operating an inverter (30) having a DC/DC converter (10, 20).
H02M 3/158 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu sans transformation intermédiaire en courant alternatif par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs avec commande automatique de la tension ou du courant de sortie, p. ex. régulateurs à commutation comprenant plusieurs dispositifs à semi-conducteurs comme dispositifs de commande finale pour une charge unique
A power generation system for feeding electrical power from a generation unit into a three-phase grid via three AC terminals is disclosed. The system includes a relay arrangement for disconnecting the system from the grid having at least three relays. Each of the three relays includes a control coil and two switching contacts operated by the corresponding control coil. Each of the AC terminals is connectable to the grid via a first and a second switching contact, each of which is assigned to a different one of the relays. Further disclosed are a relay arrangement and an inverter with a relay arrangement.
H02M 7/48 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif sans possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande
H01H 47/00 - Circuits autres que ceux appropriés à une application particulière du relais et prévue pour obtenir une caractéristique de fonctionnement donnée ou pour assurer un courant d'excitation donné
66.
SOFTWARE-BASED CONFIGURATION OF THE POWER CLASS AND ADDITIONAL FUNCTIONS OF AN INVERTER
The disclosure relates to a method for operating a power electronics device that includes checking, at the start of operation, whether exactly one activated power class profile is present from a plurality of different power class profiles, and only when exactly one activated power class profile is present, will a start of operation of the device be permitted under the conditions stored in the activated power class profile. In response to receiving a deactivation request from an authorized person, the activated power class profile is converted into a deactivated power class profile and a deactivation confirmation marked secret and stored on the device is sent to the authorized person. A corresponding power electronics device is likewise disclosed.
H04W 52/24 - Commande de puissance d'émission [TPC Transmission power control] le TPC étant effectué selon des paramètres spécifiques utilisant le rapport signal sur parasite [SIR Signal to Interference Ratio] ou d'autres paramètres de trajet sans fil
The application relates to a method for operating an inverter configured to exchange power between a DC side and an AC side. The inverter includes a bridge circuit and a divided intermediate circuit with at least two partial capacitances, arranged between the DC side and the bridge circuit. The method includes producing a first asymmetry of the partial capacitances relative to one another for generating a first potential position of DC potentials of the partial capacitances of the intermediate circuit relative to ground potential, setting the first potential position of the DC potentials of the partial capacitances of the intermediate circuit to a first setpoint value by varying the asymmetry, the first setpoint value being constant for a first period of time or modulated at a frequency which is at least 100 times lower than an AC frequency of the exchange power.
H02M 7/483 - Convertisseurs munis de sorties pouvant chacune avoir plus de deux niveaux de tension
G01R 27/02 - Mesure de résistances, de réactances, d'impédances réelles ou complexes, ou autres caractéristiques bipolaires qui en dérivent, p. ex. constante de temps
G01R 31/42 - Tests d'alimentation d'alimentations en courant alternatif
69.
ELECTRICAL CIRCUIT ARRANGEMENT AND METHOD FOR INSULATION MEASUREMENT ON A BATTERY ELECTRIC VEHICLE
The application discloses an arrangement/method for insulation measurement on an electric vehicle (EV). The arrangement is configured to be connected to a battery of the EV via EV terminals. The arrangement has a power converter with AC terminals for connecting to an AC grid and DC terminals. A first DC terminal is connectable to a first EV terminal via a first DC switch and a second DC terminal is connectable to a second EV terminal via a second DC switch or via a parallel circuit composed of the second DC switch and a third DC switch. The arrangement is configured to, when the power converter and the AC grid are connected: connect one of the DC terminals to the corresponding EV terminal by closing one of the DC switches, set a DC voltage at the DC terminals by clocking the power converter, and perform the insulation measurement.
B60L 58/16 - Procédés ou agencements de circuits pour surveiller ou commander des batteries ou des piles à combustible, spécialement adaptés pour des véhicules électriques pour la surveillance et la commande des batteries en fonction du vieillissement de la batterie, p. ex. du nombre de cycles de charge ou de l'état de santé [SoH]
G01R 31/00 - Dispositions pour tester les propriétés électriquesDispositions pour la localisation des pannes électriquesDispositions pour tests électriques caractérisées par ce qui est testé, non prévues ailleurs
G01R 31/52 - Test pour déceler la présence de courts-circuits, de fuites de courant ou de défauts à la terre
70.
METHOD FOR ARC DETECTION AND INVERTER FOR CARRYING OUT THE METHOD
The right of protection describes a method for detecting an arc (50) in a DC circuit, having the following steps: - operating a DC/DC converter (21, 22) of a two-stage inverter (10) in a first operating mode (BM1) with a first intermediate circuit voltage (UZWK, 1) applied to a DC intermediate circuit (31), - checking values of current and/or voltage associated with a DC connection (11, 12) of the inverter (10) for the presence of an indication of an arc (50) in the first operating mode (BM1) of the DC/DC converter (21, 22), wherein, if the values of current and/or voltage indicate an arc (50), the DC/DC converter (21, 22) is operated in a second operating mode (BM2) with a second intermediate circuit voltage (UZWK, 2), which is greater than the first intermediate circuit voltage (UZWK, 1) and which is greater than or equal to the open-circuit voltage (ULL) of the DC source (60), and wherein the following is carried out in the second operating mode (BM2): - deactivating the DC/DC converter (21, 22) connected to the DC connection (11, 12) in the second operating mode (BM2) of the DC/DC converter (21, 22).
H02M 3/156 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu sans transformation intermédiaire en courant alternatif par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs avec commande automatique de la tension ou du courant de sortie, p. ex. régulateurs à commutation
H02M 7/5387 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif sans possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs, p. ex. onduleurs à impulsions à un seul commutateur dans une configuration en pont
H02M 7/5395 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif sans possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs, p. ex. onduleurs à impulsions à un seul commutateur avec commande automatique de la forme d'onde ou de la fréquence de sortie par modulation de largeur d'impulsions
H02M 1/00 - Détails d'appareils pour transformation
H02M 3/158 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu sans transformation intermédiaire en courant alternatif par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs avec commande automatique de la tension ou du courant de sortie, p. ex. régulateurs à commutation comprenant plusieurs dispositifs à semi-conducteurs comme dispositifs de commande finale pour une charge unique
H02M 1/32 - Moyens pour protéger les convertisseurs autrement que par mise hors circuit automatique
H02J 1/10 - Fonctionnement de sources à courant continu en parallèle
H02J 3/32 - Dispositions pour l'équilibrage de charge dans un réseau par emmagasinage d'énergie utilisant des batteries avec moyens de conversion
H02J 3/48 - Dispositions pour l’alimentation en parallèle d’un seul réseau, par plusieurs générateurs, convertisseurs ou transformateurs contrôlant la répartition de puissance entre les générateurs, convertisseurs ou transformateurs contrôlant la répartition de la composante en phase
72.
POWER CONVERTER FOR CONVERTING MULTI-PHASE AC GRID INPUT POWER TO DC OUTPUT POWER AND HYDROGEN PRODUCTION FACILITY
A power converter (100) for converting multi-phase AC grid input power (GIV, GIC) to DC output power. For allowing efficient, cost-effective, easy installable, and reliable power supply to a DC power consumer with high power requirements, it includes at least one phase block (106A, 106B), each having at least two separate converter single-phase string arrangements (1), each of them including an individual active rectifier portion (10), including a H-bridge with semiconductor switches (12), for rectifying single-phase AC input power (SInV, SInC) to intermediate DC power and an individual DC/DC converter (20). The latter includes an inverter portion (30), having a H-bridge with semiconductor switches (32), for inverting the intermediate DC power to first intermediate AC power (PAC1) with an elevated frequency (f1), a transformer (40, 240) for transforming the first intermediate AC power (PAC1) to second intermediate AC power (PAC2, PAC2A, PAC2B), and a passive diode rectifier (50, 150, 250), including a diode bridge (51), for rectifying the second intermediate AC power (PAC2, PAC2A, PAC2B). The disclosure further discloses a hydrogen production facility (200) with an electrolyzer stack (20) and such a power converter (100).
H02M 7/219 - Transformation d'une puissance d'entrée en courant alternatif en une puissance de sortie en courant continu sans possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs dans une configuration en pont
The invention relates to an operating method for a system having a battery converter connected between a battery and a subnetwork and having at least one additional power converter connected between energy generation units and/or loads and the subnetwork. An energy supply network can be connected to the subnetwork via a network disconnect switch. The method comprises the following steps: the at least one additional power converter injecting generation power; performing network-following injection of the generation power if the network disconnect switch is closed; and disconnecting the energy supply network from the subnetwork by opening the network disconnect switch. Subsequently in the method, the battery converter performs network-forming injection of battery power into the subnetwork, the injected battery power comprising active power and/or reactive power, and the at least one additional power converter performs network-forming injection of the generation power, the injected generation power comprising active power and/or reactive power. As soon as voltage and frequency are regulated into predefined value ranges by the network-forming injection after disconnection, network-establishing injection of the battery power and network-following injection of the generation power are performed so that voltage and frequency within the subnetwork are kept in the predefined value ranges.
The invention shows a bracket for wall-mounting at least one module, preferably a battery module or a battery management module, having at least two connecting structures configured to insert and hold at least one module by means of a module-side connecting element. The at least two connecting structures are configured for guided movement between three respective positions. The three positions are a receiving position in which the module-side connecting element can be inserted through the connecting structure, an operating position configured to hold a module in a position enabling operation of the module, and a maintenance position configured to hold a module in a position. The receiving position is arranged between the operating position and the maintenance position, and the bracket further has latching structures corresponding to the upper of the operating position and the maintenance position and configured for use with a latching means.
H01M 50/204 - Bâtis, modules ou blocs de multiples batteries ou de multiples cellules
H01M 50/244 - Boîtiers secondairesBâtisDispositifs de suspensionDispositifs de manutentionSupports caractérisés par leur procédé de montage
H01M 50/262 - MonturesBoîtiers secondaires ou cadresBâtis, modules ou blocsDispositifs de suspensionAmortisseursDispositifs de transport ou de manutentionSupports avec des moyens de fixation, p. ex. des serrures
A method for operating an electrolysis device, having a converter which is connected on an AC voltage side to an AC voltage grid via a decoupling inductance and draws an AC active power from the AC voltage grid, and an electrolyzer, which is connected to the converter on the DC voltage side, is provided. The method includes operating the electrolysis device, when a grid frequency corresponds to a nominal frequency of the ACT voltage grid and is substantially constant over a time period, with an electrical power which is between 50% and 100% of a nominal power of the electrolyzer, and operating the converter in a voltage-impressing manner, such that an AC active power drawn from the AC voltage grid is changed on the basis of a change and/or a rate of change of the grid frequency in the AC voltage grid.
C25B 15/02 - Commande ou régulation des opérations
C25B 9/65 - Dispositifs pour l'alimentation en courantConnexions d'électrodesConnexions électriques intercellulaires
H02M 3/04 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu sans transformation intermédiaire en courant alternatif par convertisseurs statiques
82.
METHOD AND DEVICE FOR ADJUSTING THE POTENTIAL LEVEL OF DC CONDUCTORS
The application relates to a method and a device (10) for adjusting the potential level of a first and a second DC conductor (DC+, DC-). The DC conductors (DC+, DC-) are provided to supply an electrolyser (14) with electrical power and the electrical power is transmissible via a rectifier (20) from an AC grid (12) to the DC conductor (DC+, DC-). In a first operating mode the potential level of the first and second DC conductors (DC+, DC-) is adjusted such that both DC conductors (DC+, DC-) have the same polarity relative to earth potential (GND). The application further relates to a DC grid (30) having an electrolyser (14), such a device (10) and the first and second DC conductors (DC+, DC-).
The invention relates to a plate (10) having at least one soldering surface (16), wherein: the plate (10) is provided to be equipped with a power semiconductor (24); for equipping, the soldering surface (16) is bonded to the power semiconductor (24) by a soldering process; a main body (12) of the plate (10) has at least one plate material having a high thermal conductivity and/or a high electrical dielectric strength; and the plate (10) is designed to have a heat-dissipating and/or electromagnetically shielding effect with respect to the power semiconductor (24). The invention also relates to a power semiconductor arrangement (40) having such a plate (10), to a method for producing a power semiconductor arrangement (40), and to an inverter having a power semiconductor arrangement (40).
H01L 23/552 - Protection contre les radiations, p. ex. la lumière
H01L 25/07 - Ensembles consistant en une pluralité de dispositifs à semi-conducteurs ou d'autres dispositifs à l'état solide les dispositifs étant tous d'un type prévu dans une seule des sous-classes , , , , ou , p. ex. ensembles de diodes redresseuses les dispositifs n'ayant pas de conteneurs séparés les dispositifs étant d'un type prévu dans la sous-classe
The application discloses a power converter (30) having three or more converter modules (10a, 10b) each comprising: - a housing (16), - a converter circuit (12a-12d) having at least one semiconductor switch (14a-14d) controlled in a clocked manner, - a power terminal (22a-22d) for receiving and/or delivering an electrical power, - a DC link terminal (18a-18d), and a capacitance (20a-20d) connected to the DC link terminal (18a-18d). The three or more converter modules (10a-10d) are each connected by way of their DC link terminal (18a-18d) to a joint DC bus (19). The power converter (30) is characterized in that it comprises multiple two-party pairs of converter modules (10a-10d), in each of which pairs at least one decoupling inductance (40a-40e) is arranged in a current path (50), passing via the DC bus (19), between the capacitance (20a) of a first converter module (10a) associated with the respective two-party pair and the capacitance (20b) of the second converter module (10b) associated with the respective two-party pair. The application furthermore relates to a device having multiple power converters (30) connected in parallel with one another to an energy source and/or an energy sink.
H02M 3/158 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu sans transformation intermédiaire en courant alternatif par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs avec commande automatique de la tension ou du courant de sortie, p. ex. régulateurs à commutation comprenant plusieurs dispositifs à semi-conducteurs comme dispositifs de commande finale pour une charge unique
H02M 7/493 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif sans possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande les convertisseurs statiques étant agencés pour le fonctionnement en parallèle
H02M 1/12 - Dispositions de réduction des harmoniques d'une entrée ou d'une sortie en courant alternatif
H02M 1/44 - Circuits ou dispositions pour corriger les interférences électromagnétiques dans les convertisseurs ou les onduleurs
The disclosure relates to a control method for operating an inverter in an energy grid that is connected to an energy supply grid via a controllable disconnecting switch. The method includes operating the inverter in a current-impressing mode when the disconnecting switch is closed, and monitoring the power supply network for a voltage drop. When a voltage drop is detected, the inverter operating mode is changed to a voltage-setting mode, wherein a provisional voltage is set by the inverter. After a predetermined period of time has elapsed after detection of the voltage drop, when the voltage drop persists, the disconnecting switch opens and the voltage set by the inverter is increased to the grid normal voltage. After a predefined time period after detection of the voltage drop, when failure of the energy supply grid does not persist, the inverter operates in the current-impressing mode.
H02J 3/14 - Circuits pour réseaux principaux ou de distribution, à courant alternatif pour règler la tension dans des réseaux à courant alternatif par changement d'une caractéristique de la charge du réseau par interruption, ou mise en circuit, des charges du réseau, p. ex. charge équilibrée progressivement
H02J 3/38 - Dispositions pour l’alimentation en parallèle d’un seul réseau, par plusieurs générateurs, convertisseurs ou transformateurs
H02M 7/537 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif sans possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs, p. ex. onduleurs à impulsions à un seul commutateur
86.
POWER CONVERTER, ENERGY SUPPLY SYSTEM, METHOD FOR OPERATING A POWER CONVERTER, AND METHOD FOR OPERATING AN ENERGY SUPPLY SYSTEM
The application relates to a converter (10) for exchanging electrical power between a DC connection (DCA) and an AC connection (ACA), wherein: the DC connection (DCA) is provided for connection to a DC unit (14); the power converter (10) furthermore has a DC link (16), a bridge circuit (20), an AC relay (18) and a control unit (26); the DC link (16) is provided between the DC connection (DCA) and the bridge circuit (20), and the AC relay (18) is provided between the bridge circuit (20) and the AC connection (ACA); the control unit (26) is configured to control power switches of the bridge circuit (20) such that the power converter (10) is operated so as to impress voltage on the AC connection (ACA); and the control unit (26) is also configured to detect a DC voltage (U_DC) at the DC link (16) during the voltage-impressing operation (NB, NF) and to separate the bridge circuit (20) from the AC connection (ACA) by opening the AC relay (18) if the DC voltage (U_DC) lies below a threshold voltage (U_GR). The application also relates to a method for operating a power converter, to an energy supply system, and to a method for operating an energy supply system.
H02M 7/539 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif sans possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs, p. ex. onduleurs à impulsions à un seul commutateur avec commande automatique de la forme d'onde ou de la fréquence de sortie
H02M 7/5387 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif sans possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs, p. ex. onduleurs à impulsions à un seul commutateur dans une configuration en pont
H02M 1/32 - Moyens pour protéger les convertisseurs autrement que par mise hors circuit automatique
H02J 3/38 - Dispositions pour l’alimentation en parallèle d’un seul réseau, par plusieurs générateurs, convertisseurs ou transformateurs
H02J 9/04 - Circuits pour alimentation de puissance de secours ou de réserve, p. ex. pour éclairage de secours dans lesquels le système de distribution est déconnecté de la source normale et connecté à une source de réserve
H02J 9/06 - Circuits pour alimentation de puissance de secours ou de réserve, p. ex. pour éclairage de secours dans lesquels le système de distribution est déconnecté de la source normale et connecté à une source de réserve avec commutation automatique
87.
Voltage source inverter and power generation system
The disclosure describes a voltage source inverter having an internal control loop with a setpoint input for a setpoint signal for an active power component of the inverter, and an actual value input for a current actual value of the active power component of the inverter. The inner control loop is a controller with a proportional component and an integral component and is configured to determine a frequency shift as a controller output variable from the difference between the setpoint signal and the current actual value. The inverter is configured to provide an AC voltage that deviates from a predefined fundamental frequency by the determined frequency shift. An outer control loop of the inverter is configured to supply a setpoint signal to the setpoint input as a function of the determined frequency shift in islanded operation. A power generation system can comprise two such inverters.
H02J 3/46 - Dispositions pour l’alimentation en parallèle d’un seul réseau, par plusieurs générateurs, convertisseurs ou transformateurs contrôlant la répartition de puissance entre les générateurs, convertisseurs ou transformateurs
H02M 1/00 - Détails d'appareils pour transformation
H02M 7/493 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif sans possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande les convertisseurs statiques étant agencés pour le fonctionnement en parallèle
88.
DISCHARGING DEVICE FOR ELECTROLYZER, ELECTROLYZER SYSTEM AND METHOD FOR OPERATING THE SAME
The invention relates to a discharging device for an electrolysis system (2), comprising a control unit (1), two contact elements (DC+, DC-), one contact element being provided for connection to a direct current pole of the electrolysis system (2) and the other contact element being provided for connection to the other direct current pole of the electrolysis system (2), wherein a discharge resistor (R1), a switch (S1) which can be activated by the control unit (1) and a voltage measuring unit (V) which is configured for measuring the voltage between one and the other direct current pole of the electrolysis system (2) are arranged between the two contact elements. The control device (1) is configured to close the switch (S1) in response to a discharge signal as long as the voltage measured by the voltage measuring unit (V) is greater than a first threshold value, and to open the switch (S1) when the measured voltage is less than the first threshold value.
The disclosure relates to a bridge circuit for providing an alternating current at a phase terminal, having first and second direct current terminals for connecting to a direct current source or load. The bridge circuit includes an intermediate circuit, and a bridge with bridge switches. The bridge receives potentials at the direct current terminals and outputs potentials at first and second bridge outputs and a second bridge output which are clocked independently of one another based thereon. First and second connection paths extend between the respective bridge outputs and the phase terminal, wherein each of the connection paths comprises a filter choke. A disconnector with a plurality of relay contacts is arranged between the bridge outputs and the phase terminal. The disclosure relates to an energy conversion system with such a bridge circuit.
H02M 7/5387 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif sans possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs, p. ex. onduleurs à impulsions à un seul commutateur dans une configuration en pont
H02M 1/00 - Détails d'appareils pour transformation
The invention describes a switching unit (1) for changing between network operation and island operation of a three-phase household network, having a first and a second positively driven relay (R1, R2), each having a control coil (A1, A2) and a number of normally open contacts (R1.1, R2.1, R1.4, R2.4) and a number of normally closed contacts (R1.2, R2.2, R1.3, R2.3). The terminals of the control coil (A2) of the second relay (R2) are connected in parallel with terminals of the control coil (A1) of the first relay (R1) via a first normally open contact (R1.1) of the first relay (R1). The switching unit (1) is provided for input-side connection to one of the phase terminals of a network terminal (4) and for output-side connection to a phase terminal of a household terminal (5). In a quiescent state, the second relay (R2) connects two of the phase terminals between the network terminal (4) and the household terminal (5) and, in a controlled state, connects the phase terminals of the household terminal (5) to one another. The invention also describes a backup system (10) having such a switching unit (1).
H02J 3/00 - Circuits pour réseaux principaux ou de distribution, à courant alternatif
H01H 9/56 - Circuits non adaptés à une application particulière du dispositif de commutation non prévus ailleurs pour assurer le fonctionnement de l'interrupteur en un point déterminé de la période du courant alternatif
H01H 47/00 - Circuits autres que ceux appropriés à une application particulière du relais et prévue pour obtenir une caractéristique de fonctionnement donnée ou pour assurer un courant d'excitation donné
91.
POWER CONVERTER AND METHOD FOR EXCHANGING ELECTRICAL POWER
The application relates to a power converter (10) for exchanging electrical power, with safeguarding against ground faults, between a three-phase AC voltage grid (12) and a battery (14), wherein: the power converter (10) has an AC connection (ACA), a DC connection (DCA), a bridge circuit (16) and a DC-to-DC converter (20); the AC connection (ACA) is provided for connection to the AC voltage grid (12), and the DC connection (DCA) is provided for connection to the battery (14); a DC link (18) is arranged between the DC-to-DC converter (20) and the DC connection (DCA), and a bridge intermediate circuit (22) is arranged between the DC-to-DC converter (20) and the bridge circuit (16); the DC-to-DC converter (20) has clocked semiconductor switches (30.1-30.4, 40.1-40.3, 50.1-50.4, 60.1-60.4, 70.1-70.4) which are configured to produce a voltage transmission ratio between the DC link (18) and the bridge intermediate circuit (22) during the exchange of electrical power; and the DC-to-DC converter (20) has at least one further semiconductor switch (24, 26, 28, 32, 34) which is configured to produce a connection between the DC link (18) and the bridge intermediate circuit (22) during the exchange of electrical power and to break this connection in the event of a ground fault (EF1, EF2, EF3, EF4). The application also relates to methods for exchanging electrical power with safeguarding against ground faults, and to a use of the power converter (10).
H02M 3/158 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu sans transformation intermédiaire en courant alternatif par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs avec commande automatique de la tension ou du courant de sortie, p. ex. régulateurs à commutation comprenant plusieurs dispositifs à semi-conducteurs comme dispositifs de commande finale pour une charge unique
H02M 1/32 - Moyens pour protéger les convertisseurs autrement que par mise hors circuit automatique
H02M 1/00 - Détails d'appareils pour transformation
H02M 7/5387 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif sans possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs, p. ex. onduleurs à impulsions à un seul commutateur dans une configuration en pont
92.
METHOD FOR STARTING AN ELECTROLYSIS SUPPLY SYSTEM HAVING PARALLEL CONVERTERS AND REDUCED PRE-CHARGING UNIT
The application relates to a method for starting an electrical supply unit (10) which has a first power transformer (22), a second power transformer (24) and a rectifier unit (26) and is intended to supply a DC connection (DCA) with electrical energy from an AC network (12), wherein at least one DC connection unit (14, 15, 16) is connected to the DC connection (DCA) and the AC network (12) is connected to an AC connection (ACA) of the supply unit (10). The method comprises: pre-charging a first DC link of the first power transformer and a second DC link of the second power transformer (22 and 24) via an AC pre-charging circuit (18) from the AC network (12); and constructing an AC island network through the second power transformer (24), wherein the DC connection (DCA) is supplied with electrical energy from the AC island network via the rectifier unit (26) during the construction of the AC island network. The application further relates to an electrical supply unit (10) and to an electrolysis supply system (40).
H02M 1/36 - Moyens pour mettre en marche ou arrêter les convertisseurs
H02M 7/12 - Transformation d'une puissance d'entrée en courant alternatif en une puissance de sortie en courant continu sans possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande
H02M 7/23 - Transformation d'une puissance d'entrée en courant alternatif en une puissance de sortie en courant continu sans possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs agencés pour la marche en parallèle
H02M 5/458 - Transformation d'une puissance d'entrée en courant alternatif en une puissance de sortie en courant alternatif, p. ex. pour changement de la tension, pour changement de la fréquence, pour changement du nombre de phases avec transformation intermédiaire en courant continu par convertisseurs statiques utilisant des tubes à décharge ou des dispositifs à semi-conducteurs pour transformer le courant continu intermédiaire en courant alternatif utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs
H02M 1/00 - Détails d'appareils pour transformation
DC,k∆κΔΔ∆kΔΔ) when setting the individual power flow that flows through the individual converter (20.k). The application also describes a method for operating such a converter (30).
H02M 5/458 - Transformation d'une puissance d'entrée en courant alternatif en une puissance de sortie en courant alternatif, p. ex. pour changement de la tension, pour changement de la fréquence, pour changement du nombre de phases avec transformation intermédiaire en courant continu par convertisseurs statiques utilisant des tubes à décharge ou des dispositifs à semi-conducteurs pour transformer le courant continu intermédiaire en courant alternatif utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs
H02M 7/493 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif sans possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande les convertisseurs statiques étant agencés pour le fonctionnement en parallèle
H02M 1/12 - Dispositions de réduction des harmoniques d'une entrée ou d'une sortie en courant alternatif
H02M 7/23 - Transformation d'une puissance d'entrée en courant alternatif en une puissance de sortie en courant continu sans possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs agencés pour la marche en parallèle
94.
METHOD FOR AUTOMATICALLY ASSIGNING IDENTIFIERS TO CONTROLLED NODES OF A FIELDBUS NETWORK
A method for automatically assigning identifiers to controlled nodes of a fieldbus network, the controlled nodes comprising a plurality of electric motor drive systems, IO devices and/or feedback sensors, wherein the method includes the steps of setting the fieldbus network into a service mode; scanning the fieldbus network; decomposing the fieldbus network into linear branches and switches; scanning each linear branch; and assigning unique identifiers to the controlled nodes of the fieldbus network, wherein the identifiers include the relative positions of the controlled nodes in the fieldbus network and a node number. The disclosure is further directed at a fieldbus network including a plurality of controlled nodes, preferably electric motor drive systems, wherein the fieldbus network is provided for performing the method for automatically assigning identifiers.
S,DiffSS being exceeded, if the earth fault persists after expiry of the delay time T. The application also describes a method for monitoring fault currents for such a plant.
H02H 3/16 - Circuits de protection de sécurité pour déconnexion automatique due directement à un changement indésirable des conditions électriques normales de travail avec ou sans reconnexion sensibles à un courant de défaut à la terre ou à la masse
G01R 31/52 - Test pour déceler la présence de courts-circuits, de fuites de courant ou de défauts à la terre
H02H 3/33 - Circuits de protection de sécurité pour déconnexion automatique due directement à un changement indésirable des conditions électriques normales de travail avec ou sans reconnexion sensibles à la différence de tensions ou de courantsCircuits de protection de sécurité pour déconnexion automatique due directement à un changement indésirable des conditions électriques normales de travail avec ou sans reconnexion sensibles à un angle de déphasage entre tensions ou courants comprenant la comparaison des valeurs de tension ou de courant en des points correspondants des différents conducteurs d'un même système, p. ex. de courants dans des conducteurs d'aller et retour utilisant des transformateurs sommateurs de courant
H02H 5/12 - Circuits de protection de sécurité pour déconnexion automatique due directement à un changement indésirable des conditions non électriques normales de travail avec ou sans reconnexion sensibles à une présence ou un contact indésirable sur les parties en charge par des êtres vivants
H02H 7/20 - Circuits de protection de sécurité spécialement adaptés aux machines ou aux appareils électriques de types particuliers ou pour la protection sectionnelle de systèmes de câble ou de ligne, et effectuant une commutation automatique dans le cas d'un changement indésirable des conditions normales de travail pour équipement électronique
The disclosure relates to a method for establishing a defined state in an electrochemical system connected to an AC/DC converter via a switch disconnector to exchange electric power. At least one DC connection of the electrochemical system is connected to the AC/DC converter via the disconnecting switch. The method includes, in a first operating state, closing a first switch to establish an electric connection between the DC connections of the electrochemical system. The application additionally relates to a disconnecting device, a power converter, and to an assembly.
The invention relates to a converter assembly (1) for transmitting electric power between phases of a three-phase or multi-phase network (4) and a DC bus (5). The converter assembly comprises a DC/AC converter (2) which can be connected to the network (4) via a sine filter (7) and to the DC bus (5) via a split DC-side intermediate circuit, wherein a converter bridge (8) of the DC/AC converter (2) is connected to a central point (M) of the intermediate circuit, and a rectifier (3) which is connected in parallel with the DC/AC converter (2). The DC/AC converter (2) has a controller (10) which is designed to operate the DC/AC converter (2) in an over-modulation mode if the voltage values of the DC bus (5) are less than double the amplitude of one of the phase voltages of the network (4).
H02M 7/48 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif sans possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande
H02M 7/483 - Convertisseurs munis de sorties pouvant chacune avoir plus de deux niveaux de tension
H02M 7/493 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif sans possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande les convertisseurs statiques étant agencés pour le fonctionnement en parallèle
H02M 1/12 - Dispositions de réduction des harmoniques d'une entrée ou d'une sortie en courant alternatif
H02M 1/44 - Circuits ou dispositions pour corriger les interférences électromagnétiques dans les convertisseurs ou les onduleurs
H02M 1/00 - Détails d'appareils pour transformation
H02M 1/32 - Moyens pour protéger les convertisseurs autrement que par mise hors circuit automatique
