The present disclosure relates to a method for controlling a protection system for an electrical power system comprising a transmission line terminated by first and second terminals coupled to respective power sources. The method comprises: obtaining voltage and current measurements of the first terminal; determining phase angle boundaries of a fault current based on the voltage and current measurements; determining a first apparent impedance based on a first phase angle within or at one of the phase angle boundaries starting from the first terminal; determining a second apparent impedance based on a second phase angle within or at one of the phase angle boundaries starting from the first terminal; determining third and fourth apparent impedances starting from the first terminal based on the first and second apparent impedances; and controlling the protection system based on the third and fourth apparent impedances.
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
2.
SUPPRESSING TRANSIENT REVERSING CURRENT ON DC SIDE
The present disclosure relates to a method (1000) of controlling a converter (20, 50) of a multi-terminal, MT-, HVDC system (1) when said converter (20, 50) is being separated from a part of said MT-HVDC system (1) due to an operation of a DC circuit breaker (HHB1), said operation of said DC circuit breaker (HHB1) being carried out in response to a disturbance of an operation of the MT-HVDC system (1). The method comprising: providing (1001) a signal indicative of a DC current (id) between a DC side of said converter (20, and the DC circuit breaker (HHB1) changing direction so that the DC current (id) flows towards said DC side of said converter (20); if said converter (20) is operating in rectifier mode before said disturbance and operating to regulate a frequency and a voltage of a connected AC system (30), increasing (1002) a DC side voltage (ud-S1, ud-S2) of said converter (20, 50) by a DC side delta voltage depending on said signal, wherein said DC side delta voltage is based on a pre-fixed value (FIXED_DC_OFS) and/or a regulated value dependent on the DC current (REG_DC_OFS). A control unit and a MT-HVDC system is also disclosed.
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 3/00 - Circuits pour réseaux principaux ou de distribution, à courant alternatif
H02M 1/32 - Moyens pour protéger les convertisseurs autrement que par mise hors circuit automatique
H02M 7/483 - Convertisseurs munis de sorties pouvant chacune avoir plus de deux niveaux de tension
3.
A FAULT DETECTION METHOD FOR A POWER TRANSMISSION LINE IN AN AC POWER TRANSMISSION SYSTEM
The present disclosure relates to a fault detection method for a power transmission line (101) in an alternating current (AC) power transmission system (100). The method comprises: - obtaining local voltage phasors and local current phasors of a local position of the power transmission line; - obtaining transmission properties for the power transmission line from the local position to a remote position at a distance from the local position and for associated devices, wherein the transmission properties comprise series parameters, shunt parameters, and the distance from the local position to the remote position; - estimating, for the remote position, estimated remote voltage phasors and estimated remote current phasors on basis of the local voltage phasors, the local current phasors, and the transmission properties; - receiving, via a communication link (115), data relating to remote phase currents and determining measured remote current phasors; - determining whether a fault has occurred or not on basis of at least one of a combination of the estimated and measured remote current phasors and a combination of the estimated and measured remote voltage phasors; and - determining whether a fault is a true fault or a false fault, including: • comparing a first phase angle and a first magnitude of an estimated remote positive sequence current phasor with a second phase angle and a second magnitude of a measured remote positive sequence current phasor; • determining, on basis of the comparison, whether there is a significant channel asymmetry on the communication link; and • determining that the fault is a false fault if there is a significant channel asymmetry.
The present disclosure relates to a method for determining a distribution of existing capacity of energy in a power grid across various energy markets and products, comprising: obtaining a plurality of scenarios for the various energy markets and products in the power grid with associated probabilities based on predictions of energy demand, energy production and available energy storage, estimating the distribution for a given product in one of the energy markets at a given time by selecting a scenario based on the probability of the selected scenario individually for the given product, and constraining the total volume of the distributed energy to the physical limits of the power grid, thereby optimizing the usage of the energy storage enabling larger volumes for supporting grid stability.
G06Q 10/04 - Prévision ou optimisation spécialement adaptées à des fins administratives ou de gestion, p. ex. programmation linéaire ou "problème d’optimisation des stocks"
G06Q 30/0201 - Modélisation du marchéAnalyse du marchéCollecte de données du marché
The present invention relates to a winding arrangement (10) of a transformer (100), including at least one winding (12) wound about a winding axis (14) and configured to be arranged about a core (104) of the transformer (100), an electric shielding element (18) made at least partially of an electrically conductive material, and a plurality of connection elements (20) which are made at least partially of an electrically conductive material and electrically connects the electric shielding element (18) with the winding (12). Each of the connection element (20) is a cable, a rod, or a strip of the electrically conductive material. The electric shielding element (18) is arranged along a section of a top side (24) or a bottom side (26) of the winding (12). The electric shielding element (18) is arranged off-center, with respect to a vertical centerline (28) of a cross-sectional area (16) of the winding (12), along the section of the top side (24) or the bottom side (26). The present invention further relates to a transformer (100) and method of manufacturing a winding arrangement (10) of a transformer (100).
A power electronic component (1) is specified, comprising - a housing (2) having a recess (3), - a flexible cover (4) covering the recess (3), - at least one power semiconductor module (7), - a heat sink (8), wherein - the at least one power semiconductor module (7) and the heat sink (8) are arranged inside the housing (2), and - the flexible cover (4) has a folded part (6) for providing flexibility and a cover part (5) for covering the recess (3), the flexible cover (4) being configured to be expanded. Furthermore, a system (1) is specified.
The invention relates to a coil arrangement (10) for an electrical transformer (1) and comprising a coil (20) made from cast resin and with an axial end face (30) that comprises an engagement member (32), and a coil block (50) configured for supporting the coil (20), arranged in contact to the axial end face (30) and engaging with the engagement member (32).
H01F 27/30 - Fixation ou serrage de bobines, d'enroulements ou de parties de ceux-ci entre euxFixation ou montage des bobines ou enroulements sur le noyau, dans l'enveloppe ou sur un autre support
H01F 27/32 - Isolation des bobines, des enroulements, ou de leurs éléments
The invention relates to a coil arrangement for an electrical transformer (1) and comprising a coil (20) made from cast resin and including a first coil member (31) and a second coil member (32), wherein the first and the second coil members (31, 32) each have an axial end face (30) with a recess (36), wherein the axial end faces (30) face one another; an elastic member (50) arranged between the axial end faces (30); and a pin member (60) having a first pin end (61) projecting into the recess (36) of the first coil member (31) and having a second pin end (62) projecting into the recess (36) of the second coil member (32).
H01F 27/30 - Fixation ou serrage de bobines, d'enroulements ou de parties de ceux-ci entre euxFixation ou montage des bobines ou enroulements sur le noyau, dans l'enveloppe ou sur un autre support
H01F 27/32 - Isolation des bobines, des enroulements, ou de leurs éléments
H01F 27/33 - Dispositions pour amortissement du bruit
A coil arrangement for an electrical transformer is disclosed. The coil arrangement comprises a coil made from cast resin. The coil arrangement further includes a support base for supporting the coil. The coil arrangement further includes a coil block arranged between the support base and the coil. The coil arrangement further includes a coupling device configured for provision of a form fit between the support base and the coil block and extending into a recess of the coil block. The coupling device comprises a sliding member extending into the recess and configured for sliding relative to the support base along a sliding direction, and the coupling device comprises an elastic member providing a force along the sliding direction and pushing the sliding member away from the support base and/or towards the coil block.
A power semiconductor module (100) is provided, comprising a substrate (10), having a first main surface (11) and a second main surface (12) opposite the first main surface (11) along a stacking direction (S1). The power semiconductor module (100) further comprises a first circuit metallization (20) with a first portion (21) and a second portion (22), arranged on the first main surface (11). The power semiconductor module (100) further comprises a metal coating (30) arranged in the first portion (21) of the first circuit metallization (20), wherein the second portion (22) of the first circuit metallization (20) is free of the metal coating (30), and a resin body (40) covering the substrate (10) and the second portion (22) of the first circuit metallization (20). The resin body (40) has a top surface (41) extending along a first extension area (A1), and an inner surface (42 ) facing the first circuit metallization (20). The resin body (40) comprises at least one opening (45) extending into the resin body (40) from the top surface (41) to the inner surface (42) along the stacking direction (S1) and terminates at the metal coating (30), such that the metal coating (30) is exposed.
H01L 21/56 - Encapsulations, p. ex. couches d’encapsulation, revêtements
H01L 23/31 - Encapsulations, p. ex. couches d’encapsulation, revêtements caractérisées par leur disposition
H01L 23/373 - Refroidissement facilité par l'emploi de matériaux particuliers pour le dispositif
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
11.
METHOD AND PROCESSING SYSTEM FOR AN ASSET STATE PREDICTION
To perform an asset state prediction for an electric power system (11, 20), a processing system (30) is operative to estimate a hazard function that is indicative of a probability of asset failure as a function of a variable in absence of asset maintenance. The processing system (30) is operative to determine a hazard function parameter value for at least one hazard function parameter of the hazard function based on outage data for the electric power system (11, 20).
G06Q 10/04 - Prévision ou optimisation spécialement adaptées à des fins administratives ou de gestion, p. ex. programmation linéaire ou "problème d’optimisation des stocks"
State-of-the-art methods for locating a fault within a power distribution network rely on complex methods, such as optimization, which fail to fully leverage the wealth of information contained in automated metering infrastructure (AMI) data. Disclosed embodiments utilize the AMI data to generate power flow profiles (e.g., using an aggregation process) for fuses within the power distribution network. These power flow profiles, which define expected power flow as a function of time, are used to determine expected power flow through each fuse at any given time. Whenever a fault is detected by a measurement device, the drop in power flow through the measurement device is matched to the expected power flows of the downstream fuses, to determine a set of potentially blown downstream fuses. This significantly narrows the search space from which a final blown downstream fuse may be determined, without the computational expense required by state-of-the-art methods.
H02J 3/00 - Circuits pour réseaux principaux ou de distribution, à courant alternatif
G01R 31/08 - Localisation de défauts dans les câbles, les lignes de transmission ou les réseaux
H02H 7/26 - Protection sectionnelle de systèmes de câbles ou de lignes, p. ex. pour déconnecter une section dans laquelle un court-circuit, un défaut à la terre, ou une décharge d'arc se sont produits
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
13.
PLACEMENT OF MEASUREMENT DEVICES FOR OBSERVABILITY OF VERY LARGE POWER SYSTEMS
Classical optimization techniques, when applied to the placement of measurement devices in very large power networks, become computationally intractable and are not guaranteed to converge. In contrast, disclosed embodiments guarantee an optimal placement strategy of measurement devices, such as phasor measurement units for measuring voltage and current, across a power network of any size, such that the voltage at each bus is observable, in dramatically less computational time than classical optimization techniques. In particular, embodiments traverse at least one spanning tree of a graph of the power network, and place measurement devices based on distance values of the nodes from the nearest measurement device. The distance values, and potentially the observability status, of all nodes are updated after each placement.
G01R 19/25 - Dispositions pour procéder aux mesures de courant ou de tension ou pour en indiquer l'existence ou le signe utilisant une méthode de mesure numérique
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
14.
A METHOD OF SUPERVISING A COMMUNICATION LINK OF A POWER TRANSMISSION SYSTEM
A method of supervising a communication link (115) of a power transmission system (100) having a power transmission line (101), comprising: - determining, at a local position, measured local current values and measured local voltage values; - receiving, at the local position, via the communication link, data relating to remote phase currents, and determining a measured remote positive sequence current on basis thereof; - estimating a remote positive sequence current on basis of the measured local current values, the measured local voltage values, and properties of the power transmission line and associated devices, which properties comprise series parameters, shunt parameters, and the distance from the local position to the remote position, - comparing a first phase angle and a first magnitude of the estimated remote positive sequence current, with a second phase angle and a second magnitude of the measured remote positive sequence current, and - determining, on basis of the comparison, whether there is a channel asymmetry on the communication link.
There is disclosed herein a method (100) for controlling a hydrogen power generator (1) connected to one or more loads (2). The hydrogen power generator comprises a common bus (30), a plurality of fuel cell branches (10) and a power electronic converter (20) for each fuel cell branch connecting each fuel cell branch to the common bus. The method comprises determining (110) a minimum number of fuel cell branches required to meet a request of a total active power generation from said one or more loads, selecting (120) the fuel cell branches to use based on a fuel cell age of each fuel cell branch and the determined minimum number, and generating (130) active power from each of the selected fuel cell branches based on a calculated individual active power request for each fuel cell branch. There is also disclosed herein a control unit and a hydrogen power generator.
H01M 8/249 - Groupement d'éléments à combustible, p. ex. empilement d'éléments à combustible comprenant plusieurs groupements d'éléments à combustible, p. ex. ensembles modulaires
16.
PROCESSING SYSTEM AND PROCESSING METHOD FOR AN ELECTRIC POWER SYSTEM
A processing system (60) for an electric power system is operative to perform a node loadability analysis (71). The processing system (60) is operative to determine both a permissible active power range and a permissible reactive power range. The processing system (60) is operative to cause or enable outputting of a node loadability representation that combines a first indicator for the permissible active power range and a second indicator for the permissible passive power range.
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
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
17.
WINDING ARRANGEMENT, TRANSFORMER, AND METHOD OF MANUFACTURING A WINDING ARRANGEMENT OF A TRANSFORMER
The present invention relates to a winding arrangement (10) of a transformer (100), including at least one first winding (14) wound about at least one winding axis (16) and configured to be arranged about at least a portion of a core (102) of the transformer (100) and at least one second winding (22) wound at least partially about the first winding (14). The second winding (22) has a variable distance (30) from the first winding (14) along a length (32) of the second winding (22) which extends along the winding axis (16). The distance (30) between the first winding (14) and the second winding (22) is the smallest at a center or middle section (40) of the length (32) of the second winding (22). The present invention further relates to a transformer (100) and a method of manufacturing a winding arrangement (10) of a transformer (100).
H01F 27/30 - Fixation ou serrage de bobines, d'enroulements ou de parties de ceux-ci entre euxFixation ou montage des bobines ou enroulements sur le noyau, dans l'enveloppe ou sur un autre support
H01F 27/32 - Isolation des bobines, des enroulements, ou de leurs éléments
H01F 27/34 - Moyens particuliers pour éviter ou réduire les effets électriques ou magnétiques indésirables, p. ex. pertes à vide, courants réactifs, harmoniques, oscillations, champs de fuite
H01F 30/06 - Transformateurs fixes non couverts par le groupe caractérisés par la structure
In one embodiment of the semiconductor device (1) at an emitter side (3), a semiconductor body (2) comprises a plurality of emitter regions (31) and a plurality of well regions (32), each of the emitter regions (31) is embedded in one of the well regions (32), at a collector side (4), the semiconductor body (2) comprises a pilot region (41) which is uniformly of a same conductivity type and a mixed region (42) which is of of two conductivity types and which surrounds the pilot region (41), and a first area occupancy of the emitter side (3) by the emitter regions (31) is larger in the pilot region (41) than in the mixed region (42) and/or a second area occupancy of the well regions (32) by the emitter regions (31) is smaller in the pilot region (41) than in the mixed region (42).
H10D 62/10 - Formes, dimensions relatives ou dispositions des régions des corps semi-conducteursFormes des corps semi-conducteurs
H10D 12/00 - Dispositifs bipolaires contrôlés par effet de champ, p. ex. transistors bipolaires à grille isolée [IGBT]
H10D 62/13 - Régions semi-conductrices connectées à des électrodes transportant le courant à redresser, amplifier ou commuter, p. ex. régions de source ou de drain
H10D 84/00 - Dispositifs intégrés formés dans ou sur des substrats semi-conducteurs qui comprennent uniquement des couches semi-conductrices, p. ex. sur des plaquettes de Si ou sur des plaquettes de GaAs-sur-Si
H10D 64/00 - Électrodes de dispositifs ayant des barrières de potentiel
H10D 64/23 - Électrodes transportant le courant à redresser, à amplifier, à faire osciller ou à commuter, p. ex. sources, drains, anodes ou cathodes
19.
DIRECT MULTI-TO-SINGLE-PHASE, MODULAR MULTI-LEVEL CONVERTER, ITS USE IN A RAILWAY INTERTIE AND METHODS FOR ITS OPERATION
The disclosure relates to a direct multi-to-single-phase, modular multi-level converter (MMC), comprising a first AC interface for connecting it to a multi-phase, first power grid, a second AC interface for connecting it to a single-phase, second power grid, two groups of P phase-legs, each phase-leg comprising N switching cells connected in series between a respective one of P phases of the first AC interface and a single phase and neutral potential of the second AC interface, respectively, wherein P≥2 and N≥3, and at least one controller, which is configured to control the first group of P phase-legs and the second group of P phase-legs to selectively provide a maximum apparent power at the first AC interface and at the second AC interface, and, in response to the detection of at least one failed switching cell of a first phase-leg, to switch the MMC into a limited output mode of operation.
H02M 5/14 - 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 sans transformation intermédiaire en courant continu par convertisseurs statiques utilisant des transformateurs pour la transformation entre des circuits à nombre de phases différent
There is disclosed herein a converter valve assembly (20) for a power grid system, comprising two or more equal groups (6a, 6b, 6c) of prismatic converter cells (3a-ad), each group (6a, 6b, 6c) being arranged in a respective plane (7a, 7b, 7c) of a plurality of parallel planes spaced apart along an axis (8). Converter cells (3a-j) in a group (6a) are connected in series and arranged with their shortest dimension perpendicular to the plane (7a), and the groups (6a, 6b, 6c) are connected in series along the axis (8). The prismatic converter cells (3a-j) in a group (6a) are arranged such that there is a corresponding voltage difference between each converter cell (3a-j) in the group (6a) and each corresponding converter cell (3k-t) in an adjacent group (6b) that is a spatially nearest to said each converter cell (3a-j), during operation of the converter valve assembly (20). Therefore, a spacing between groups may be reduced and an overall volume of the converter valve assembly may be reduced.
H02M 3/00 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu
H02J 3/36 - Dispositions pour le transfert de puissance électrique entre réseaux à courant alternatif par l'intermédiaire de haute tension à courant continu
21.
METHOD FOR GENERATING A UNIFIED CONTROL SIGNAL FOR A POWER CONVERSION SYSTEM AND A POWER CONVERSION SYSTEM
unified11,processed22,processed1,processedexternal12,processedexternal2,processedunifiedunified) by using interfacing function, first control signal and second control signal.
H02J 3/38 - Dispositions pour l’alimentation en parallèle d’un seul réseau, par plusieurs générateurs, convertisseurs ou transformateurs
H02J 3/40 - Synchronisation d'un générateur pour sa connexion à un réseau ou à un autre générateur
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
22.
METHOD FOR LOCATING A GROUND FAULT, A CONTROL UNIT AND AN ENERGY STORAGE SYSTEM
There is disclosed herein a method for locating a ground fault in an energy storage system comprising a plurality of parallel strings. A string comprises a plurality of energy storage units connected in series and an energy storage unit includes one or more energy storage modules and a bypass circuit. The method comprises for each string of said energy storage system, identifying an energy storage unit candidate as a potential ground fault location based on a number of energy storage units in the string, a pole unbalance voltage and an energy storage system voltage, and determining in which string the ground fault is located by successively bypassing, one string at a time, at least some of the identified energy storage unit candidates and identifying the string for which a deviation from an expected behaviour is measured.
There is disclosed herein a method for detecting a ground fault in an energy storage system comprising at least one string having a plurality of energy storage modules. The string is connected between a first direct current (DC) pole and a second DC pole. The first DC pole and the second DC pole are connected to an AC side through a respective converter. The method comprises determining a first co-phasal harmonic component based on at least one phase-to-ground voltage measured at the AC side, determining a second co-phasal harmonic component based on at least one pole-to-ground voltage measured at the DC side, and determining presence of a ground fault if the first co-phasal harmonic component increases and/or the second co-phasal harmonic component decreases. There is also disclosed herein a control unit and an energy storage system.
There is disclosed herein an energy storage system (ESS) adapted for incorporation with a medium-voltage static compensator (STATCOM), the ESS comprising a plurality of strings electrically connected in parallel, each string comprising one or more electrical energy storage units electrically connected in series. At least one string comprises a protection arrangement, the protection arrangement comprising a contactor arranged in series with the one or more electrical energy storage units, configured to interrupt current flow through the string during a fault response, and a disconnector switch arranged in series with the one or more electrical energy storage units, configured to open after the contactor has interrupted current flow through the string. The contactor has a voltage rating substantially less than the total string voltage; and the disconnector switch has a voltage rating at least substantially similar to the total string voltage. There is further disclosed herein a STATCOM device connected to such an ESS, and a method for controlling such an ESS.
H02H 3/087 - 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 une surcharge pour des systèmes à courant continu
H02H 7/16 - 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 capacités
H02H 7/18 - 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 pilesCircuits 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 accumulateurs
H02J 3/18 - Dispositions pour réglage, élimination ou compensation de puissance réactive dans les réseaux
H02H 3/02 - 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
H02H 9/02 - Circuits de protection de sécurité pour limiter l'excès de courant ou de tension sans déconnexion sensibles à un excès de courant
H02H 7/26 - Protection sectionnelle de systèmes de câbles ou de lignes, p. ex. pour déconnecter une section dans laquelle un court-circuit, un défaut à la terre, ou une décharge d'arc se sont produits
25.
POWER TRANSFORMER FOR ON-LOAD TAP CHANGER APPLICATION
A power transformer for an on-load tap changer application is disclosed. The power transformer comprises a winding arrangement with a core, several windings wound around the core, and a shield located at an outer side of an outermost one of the windings, wherein the shield comprises or consists of a conductive or semiconductive material.
H01F 38/00 - Adaptations de transformateurs ou d'inductances à des applications ou des fonctions spécifiques
26.
AN ELECTROSTATIC SHIELDING ELEMENT, AN ELECTROSTATIC SHIELDING ARRANGEMENT AND A TRANSFORMER ARRANGEMENT COMPRISING THE ELECTROSTATIC SHIELDING ARRANGEMENT
The disclosure relates to an electrostatic shielding element arranged on a first axis and comprising an electrostatically shielded volume (at least partially closed by an electrically conductive coating, wherein a thickness and an electrical conductivity of the coating are selected to enable a magnetic field of a predetermined frequency to penetrate the coating, into the volume. The disclosure also relates to an electrostatic shielding arrangement and to a transformer arrangement.
The invention relates to a component (20, 24, 26, 28) of a transformer (10), wherein the component (20, 24, 26, 28) is a current-carrying component and comprises a graphene-reinforced aluminium matrix composite. Furthermore, the invention relates to a transformer (10) comprising the above component (20, 24, 26, 28).
H01B 1/02 - Conducteurs ou corps conducteurs caractérisés par les matériaux conducteurs utilisésEmploi de matériaux spécifiés comme conducteurs composés principalement de métaux ou d'alliages
METHOD FOR PRODUCING A GROWTH SUBSTRATE, METHOD FOR PRODUCING AN EPITAXIAL SILICON CARBIDE LAYER, GROWTH SUBSTRATE, AND EPITAXIAL SILICON CARBIDE LAYER
A method for producing a growth substrate (1) for an epitaxial silicon carbide layer (5) is specified, the method comprising : providing an initial wafer (2), wherein the initial wafer (2) comprises silicon carbide and wherein the initial wafer (2) comprises a first dopant, and heating the initial wafer (2) to an annealing temperature within a first gas atmosphere, wherein the first dopant and the first gas comprise the same material element, such that a growth region (4) for the epitaxial silicon carbide layer (5) is produced, wherein a maximum concentration of the first dopant of the growth region (4) is higher than a maximum concentration of the first dopant in an initial wafer region. Furthermore, a method for producing an epitaxial silicon carbide layer (5), a growth substrate (1), an epitaxial silicon carbide layer (5), and a power semiconductor device are provided.
In one embodiment, the power semiconductor device (1) comprises - a first electrode (21) and a second electrode (22), and - a semiconductor layer sequence (3), wherein - seen along a vertical direction (V), the semiconductor layer sequence (3) comprises a first region (31) of a first conductivity type, a second region (32) adjacent to the second electrode (22) of a second conductivity type, and a reverse layer (44) of the second conductivity type between the first electrode (21) and the first region (31), - the first region (31) comprises extensions (5, 51, 52, 53) running through the reverse layer (44), - seen in top view of the first electrode (21), the reverse layer (44) comprises a central area (41), an intermediate area (42) and an edge area (43) in which the extensions (5, 51, 52, 53) have different area proportions and/or sizes, respectively.
H10D 62/85 - Corps semi-conducteurs, ou régions de ceux-ci, de dispositifs ayant des barrières de potentiel caractérisés par les matériaux étant des matériaux du groupe III-V, p. ex. GaAs
H10D 62/83 - Corps semi-conducteurs, ou régions de ceux-ci, de dispositifs ayant des barrières de potentiel caractérisés par les matériaux étant des matériaux du groupe IV, p. ex. Si dopé B ou Ge non dopé
H10D 62/80 - Corps semi-conducteurs, ou régions de ceux-ci, de dispositifs ayant des barrières de potentiel caractérisés par les matériaux
30.
METHOD FOR DETERMINING A STATE OF HEALTH, SOH, OF AN ENERGY STORAGE MODULE, A CONTROL UNIT AND AN ARRANGEMENT
There is disclosed herein a method for determining SoH of an energy storage module (22) of an energy storage system (20) of an arrangement (1). The energy storage system is connected to an alternating current, AC, power grid (2) through a multilevel modular converter, MMC (10) of the arrangement. The method comprises controlling the MMC to generate a circulating current with a pulse pattern having different levels and that circulates through the energy storage modules, measuring a module voltage over and a module current through each energy storage module, determining an individual module resistance for each energy storage module based on the respective module voltage and the respective module current at the different levels in the pulse pattern, and determining a SoH for each energy storage module based on the individual module resistance. There is further disclosed herein a control unit (50) and an arrangement.
G01R 31/389 - Mesure de l’impédance interne, de la conductance interne ou des variables similaires
G01R 31/392 - Détermination du vieillissement ou de la dégradation de la batterie, p. ex. état de santé
G01R 31/396 - Acquisition ou traitement de données pour le test ou la surveillance d’éléments particuliers ou de groupes particuliers d’éléments dans une batterie
The present disclosure relates to a preservation system (10) for a liquid-immersed transformer (30), comprising an expansion tank (11) configured for holding variable volumes of a first liquid (4) and a gas (18), respectively, at least one chamber (14) formed separate from the expansion tank (11) and configured for holding a further volume of the gas (18), the chamber (14) being fluidically connected to an upper part of the expansion tank (11), such that the gas (18) above the variable volume of the first liquid (4) can flow to and from the at least one chamber (14), and a u-shaped, tube -like vessel (16) with a first upper part (16a) connected to the at least one chamber (14), a second upper part open to an environment, and a base part (16b) fluidically connecting the first upper part (16a) and the second upper part an d being configured for holding a second liquid (20) separating the gas (18) from ambient air. The present disclosure further relates to a transformer system (1).
A method for producing a semiconductor body comprises providing a first semiconductor layer of SiC, introducing carbon into the first semiconductor layer so that at least a portion of the first semiconductor layer becomes at least one C-rich region, and growing a second semiconductor layer of SiC on the first semiconductor layer comprising the at least one C-rich region.
H01L 21/04 - Fabrication ou traitement des dispositifs à semi-conducteurs ou de leurs parties constitutives les dispositifs ayant des barrières de potentiel, p. ex. une jonction PN, une région d'appauvrissement ou une région de concentration de porteurs de charges
C30B 25/18 - Croissance d'une couche épitaxiale caractérisée par le substrat
C30B 25/20 - Croissance d'une couche épitaxiale caractérisée par le substrat le substrat étant dans le même matériau que la couche épitaxiale
C30B 31/22 - Dopage par irradiation au moyen de radiations électromagnétiques ou par rayonnement corpusculaire par implantation d'ions
H01L 21/02 - Fabrication ou traitement des dispositifs à semi-conducteurs ou de leurs parties constitutives
33.
COOLING ARRANGEMENT AND METHOD FOR COOLING AT LEAST ONE OIL-TO-AIR EXTERNAL HEAT EXCHANGER
A cooling arrangement for cooling at least one OAEHE in a transformer. The cooling arrangement comprises at least one impeller-motor device, at least one fluid pipe and a first fluid discharge device. The first fluid discharge device comprises a fluid inlet arranged to receive a fluid from the at least one fluid pipe, and at least one fluid outlet arranged to direct the fluid towards the OAEHE, wherein the at least one impeller-motor device is adapted to supply the fluid to the inlet of the first fluid discharge device via the at least one fluid pipe and cause the fluid to flow through the at least one fluid outlet of the first fluid discharge device in a direction of the at least one OAEHE. The cooling arrangement further comprises a second fluid discharge device adapted to disturb the fluid that flows through the at least one fluid outlet of the first fluid discharge device.
F28D 1/02 - Appareils échangeurs de chaleur comportant des ensembles de canalisations fixes pour une seule des sources de potentiel calorifique, les deux sources étant en contact chacune avec un côté de la paroi de la canalisation, dans lesquels l'autre source de potentiel calorifique est une grande masse de fluide, p. ex. radiateurs domestiques ou de moteur de voiture avec des canalisations d'échange de chaleur immergées dans la masse du fluide
F28D 21/00 - Appareils échangeurs de chaleur non couverts par l'un des groupes
There is disclosed herein an energy storage system for a direct current (DC) transmission system, the energy storage system being configured to be connected to a DC link. The energy storage system comprises a first system terminal, a second system terminal, a first converter connected to the first system terminal, and a second converter connected to the first converter and the second system terminal. The energy storage system further comprises an AC loop device providing an alternating current (AC) path, and a plurality of energy storage devices connected in parallel with the second converter comprising a cell having power electronic switches, and an energy storage element connected to the cell, wherein the cells are individually switchable. The present disclosure further relates to a method for providing energy storage to a DC transmission system.
The invention relates to a drive (10) for an electric circuit breaker (2) of a high voltage switchgear, wherein the drive (10) comprises a storage device (12) configured for resiliently storing mechanical energy and a hydraulic device (13) configured for transferring the mechanical energy, wherein the storage device (12) comprises a working cylinder (14) and a piston rod (16) guided in the working cylinder (14), by means of which piston rod (16) a moving contact member of the electric circuit breaker (2) can be actuated; wherein the drive (10) further comprises a counter device (20) configured to count actuation cycles of the piston rod (16) in the working cylinder (14), and/or a position indicator device (50) configured to indicate a position of the piston rod (16) in the working cylinder (14) by means of a rotational position of an indicator element (54) of the position indicator device (50); and wherein the drive (10) further comprises an actuation member (18) coupled to the piston rod (16) and to the counter device (20) and/or the position indicator device (50).
H01H 9/16 - Indicateurs de position, p. ex. "marche" ou "arrêt"
H01H 33/34 - Dispositions à énergie incorporée dans l'interrupteur pour actionner le mécanisme moteur utilisant un mécanisme de commande à fluide hydraulique
The disclosure relates to an operating mechanism for a switchgear device, including a rotatable output shaft configured for achieving an opening or closing operation of the switchgear device by rotation, a rotatable energy storage lever and a spring, whereby the energy storage lever is configured for being rotated by a motor so as to drive the spring to be compressed for storing energy, and a rotatable drive lever torque-proof connected to the output shaft, rotatably connected to the energy storage lever and free-wheeling connected to the spring allowing a rotability between the drive lever and the spring of ≤60° for achieving the opening or closing operation of the switchgear device, whereby the spring is configured, during at least one of the opening and closing operation of the switchgear device, for releasing energy so as to rotate the drive lever after passing through the spring's dead-point position.
H01H 3/30 - Dispositions comportant une énergie à l'intérieur de l'interrupteur pour actionner le mécanisme d'entraînement utilisant un moteur à ressort
H01H 3/46 - Mécanismes-moteurs, c.-à-d. pour transmettre la force motrice aux contacts utilisant une liaison par tige ou levier, p. ex. une genouillère
H01H 3/48 - Mécanismes-moteurs, c.-à-d. pour transmettre la force motrice aux contacts utilisant des dispositifs à déplacement à vide
H01H 3/60 - Dispositions mécaniques pour empêcher ou amortir les vibrations ou les chocs
H01H 31/00 - Interrupteurs à coupure dans l'air pour haute tension sans moyen d'extinction ou de prévention des arcs
37.
SUPERJUNCTION POWER SEMICONDUCTOR DEVICE AND METHOD FOR MANUFACTURING A SUPERJUNCTION POWER SEMICONDUCTOR DEVICE
A superjunction power semiconductor device comprising a substrate, a plurality of core structures and a plurality of annular shell structures. Each core structure has a cylindrical shape extending in a direction perpendicular to a main surface of the substrate and comprising a first semiconductor material of a first conductivity type. Each shell structure surrounds one of the core structures on its outside and comprises a second semiconductor material of a second conductivity type.
A vacuum interrupter for an on-load tap changer comprising a cylindrical housing arranged on an axis including a wall enclosing a hermetically sealed inner volume and a ceramic bottom part extending perpendicularly to the axis, the wall comprising a first optical interface between the inner volume and an outer environment, the first optical interface being configured to be transparent to at least one optical wavelength, the inner volume comprising an optical guide open to an environment of the inner volume, a switch coaxially arranged with the housing on the axis within the inner volume of the housing, the vacuum interrupter further comprising a shield element coaxially arranged with the switch, characterised in that the optical guide is arranged recessed in relation to an inner surface of the ceramic bottom part of the wall and in that the shield element is arranged between the switch and the optical guide.
The present disclosure provides a surge arrester module and a surge arrester including the surge arrester module. The surge arrester module includes a varistor stack, a pair of electrodes and a coupling assembly for coupling the pair of electrodes. The varistor stack includes multiple varistor blocks stacked along a longitudinal direction of the surge arrester module and is sandwiched the pair of electrodes. The coupling assembly includes at least one rod. Each rod includes a rod body extending in the longitudinal direction and at least one sleeve sleeved outside the rod body for attaching the rod to the electrode. The rod body is made of insulating material and includes a first interlocking portion in the form of a circumferential groove, wherein the groove lies within a plane having a normal vector parallel to the longitudinal direction.
A conservator device (1) for use with an electric induction device (2), said electric induction device (2) comprising a liquid-filled volume. The conservator device (1) comprises a tank (3) and two or more diaphragms (6) provided inside the tank (3). Each diaphragm (6) is attached to the tank (3) around a circumferential portion of the respective diaphragm (6) such that the diaphragms (6) jointly divide the inner volume of the tank (3) into a first volume (V1) for liquid and a second volume (V2) for air. The tank (3) is provided with a first port (8) fluidly connecting the second volume (V2) to ambient air, and a second port (7) enabling fluid connection between the first volume (V1) and the liquid-filled volume of the electric induction device (2). Portions of one or more of said diaphragms (6) are attached to the tank (3) via a rigid support structure (4, 10, 11) attached to the tank (3).
A conservator device (1) for use with an electric induction device (2). The electric induction device (2) comprises a liquid-filled volume, and the conservator device comprises a tank (3), and one or more wall primary wall members (4) provided within an inner volume (V) of the tank (3). The primary wall members (4) are5 adapted to horizontally divide the inner volume (V) of the tank into a plurality of compartments (C). The secondary wall members (5) are provided within the inner volume (V) of the tank, and are adapted to vertically divide the inner volume (V) of the tank, or one or more of said compartments, into an upper compartment (CU) and a lower compartment (CL). One or more of said upper compartments10 (CU) are provided with a respective bladder (6) inside the respective upper compartment (CU). Each respective bladder (6) is attached to the tank (3) such that an inner volume of the bladder (6) is fluidly separated from a remaining portion of the inner volume (V) of the tank (3), and each bladder (6) is fluidly connected to ambient air through a first port (8) of the tank (3). The tank (3)15 comprises a second port (7) adapted to provide a liquid connection between said remaining portion of the inner volume of the tank (3) and a liquid-filled volume of the electric induction device (2). The primary (4) and/or secondary (5) wall members are adapted to enable liquid flow between the compartments (C, CU, CL). The one or more primary (4) and/or secondary (5) wall members are fluid-20 permeable and is/are made of porous material.
A conservator device (1) for use with an electric induction device (2), said electric induction device comprising a liquid-filled volume. The conservator device (1) comprises: a tank (3), one or more wall members (4) provided within an inner volume of the tank (3), said one or more wall members (4) being adapted to horizontally divide the inner volume of the tank (3) into a plurality of compartments (C). One or more of said compartments (C) is provided with a respective barrier (6) being flexible and attached to the tank (3) such that the barrier (6) fluidly separates a dry portion of the inner volume of the tank (3) from a remaining portion of the inner volume of the tank (3), wherein each dry portion of the inner0 volume of the tank (3) is fluidly connected to ambient air by a first port (8) of the tank (3). The tank (3) comprising a second port (7) adapted to enable a liquid connection between said remaining portion of the inner volume of the tank (3) and a liquid-filled volume of the electric induction device (2). Further, the one or more wall members (4) are liquid-permeable.
The present disclosure relates to a method for controlling a power distribution system comprising distributed charging station(s) for coupling to electrical vehicle(s) (EVs) and a grid interface for coupling the distributed charging station(s) to a power grid. The method comprises determining an EV power setpoint of the EV(s) based on received data; determining a first overload condition based on the EV power setpoint and a first power constraint of the distributed charging station(s); updating the EV power setpoint based on the first overload condition; determining a second overload condition based on the updated EV power setpoint and a second power constraint of the grid interface; redetermining the EV power setpoint based on the updated EV power setpoint and the second overload condition; and controlling the power distribution system based on the redetermined EV power setpoint. The present disclosure also relates to a respective system and power distribution system.
In one embodiment, the semiconductor device (1) comprises a semiconductor body (2), a gate electrode (33) and a first electrode (31), wherein—the semiconductor body (2) comprises a first region (21) which is a source region or an emitter region, and comprises a well region (22) located next to the first region (21), the first region (21) is of a first conductivity type and the well region (22) is of a second conductivity type, —the well region (22) is separated from the gate electrode (33) by a gate insulator layer (4), —the first region (21) is electrically contacted by means of the first electrode (31), —in the first region (21) there is at least one current limiting region (5), and—the at least one current limiting region (5) is a sub-region of the first region (21) with a decreased electrical conductivity.
H10D 62/13 - Régions semi-conductrices connectées à des électrodes transportant le courant à redresser, amplifier ou commuter, p. ex. régions de source ou de drain
H10D 12/00 - Dispositifs bipolaires contrôlés par effet de champ, p. ex. transistors bipolaires à grille isolée [IGBT]
H10D 30/66 - Transistors FET DMOS verticaux [VDMOS]
H10D 62/832 - Corps semi-conducteurs, ou régions de ceux-ci, de dispositifs ayant des barrières de potentiel caractérisés par les matériaux étant des matériaux du groupe IV, p. ex. Si dopé B ou Ge non dopé étant des matériaux du groupe IV comprenant deux éléments ou plus, p. ex. SiGe
45.
PARAMETER ESTIMATION FOR VOLTAGE MEASUREMENTS IN NOISY ENVIRONMENTS
A method for estimating an ON-state resistance of a semiconductor switch in an electric power converter is provided. The method comprises obtaining, from a measurement circuit, an ON-state voltage of the semiconductor switch. The method further comprises obtaining an ON-state current through the semiconductor switch. The method further comprises obtaining a selected frequency, extracting voltage harmonics of the selected frequency from the ON-state voltage, and extracting current harmonics of the selected frequency from the ON-state current. The method further comprises integrating the voltage harmonics over a period of time, to obtain an integrated voltage. The method further comprises integrating the current harmonics over the same period of time, to obtain an integrated current. The method further comprises determining an ON-state resistance estimate of the semiconductor switch based on the integrated voltage and the integrated current.
A control device for at least one electric power system component comprises at least one control circuit, configured to be coupled to a communication interface and the at least one electric power system component. The at least one control circuit is further configured to receive data from the communication interface, set the control device to a local control mode based on the received data if a user of a mobile device is at a first location local to the control device, and set the control device to a remote control mode in response to a request of the user of the mobile device from a second location remote to the control device. A mobile device configured to interact with the control device is also provided.
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
A method for lifetime prediction and monitoring of a device, and a corresponding system are provided. The method comprises calculating a probability density function over time for an aging variable based on solving equation(s) from an aging model with an End of Life (EOL) boundary condition, wherein the boundary condition includes a first boundary condition and a second boundary condition, wherein the first boundary condition is a no-flux boundary condition and the second boundary condition is an absorbing or partly absorbing boundary condition, measuring an condition related observable of the device; obtaining first data representing measurement of the observable, calculating a likelihood for the aging variable from the first data, updating the calculated probability density function of the aging variable based on the likelihood, and generating a signal indicating a health prediction of the device based on the probability density function, the aging model and the EOL boundary condition.
In one embodiment, the semiconductor device (1) comprises a semiconductor body (2), a gate electrode (33) and a first electrode (31), wherein—the semiconductor body (2) comprises a first region (21) which is a source region or an emitter region, and comprises a well region (22), the first region (21) is of a first conductivity type and the well region (22) is of a different, second conductivity type,—the well region (22) is separated from the gate electrode (33) by a gate insulator layer (4),—the first region (21) is electrically contacted by means of the first electrode (31) which is a source electrode or an emitter electrode,—in the first region (21) there is at least one current limiting region (5), and—the at least one current limiting region (5) is of at least one electrically insulating material.
H10D 30/66 - Transistors FET DMOS verticaux [VDMOS]
H10D 62/60 - Distribution ou concentrations d’impuretés
H10D 62/832 - Corps semi-conducteurs, ou régions de ceux-ci, de dispositifs ayant des barrières de potentiel caractérisés par les matériaux étant des matériaux du groupe IV, p. ex. Si dopé B ou Ge non dopé étant des matériaux du groupe IV comprenant deux éléments ou plus, p. ex. SiGe
There is disclosed herein a tensioner device for arranging radially around a composite rod between a first anchor point of the composite rod and a first pushing surface arranged between the first and second anchor point of the composite rod. The tensioner device is configured to tension the composite rod by applying pressure between the first anchor point and the first pushing surface, and comprises a first part for abutting the first anchor point, a second part for abutting the first pushing surface, and a third part arranged between the first and second parts, and engaging at least one thereof so as to translate a rotational motion of said third part into a linear motion of said at least one of the first and second parts away from the third part, to thereby apply the pressure between the first anchor point and the first pushing surface.
F16B 31/04 - Assemblages à vis spécialement modifiés en vue de résister à une charge de tractionBoulons de rupture maintenant constante la charge de traction
50.
METHOD FOR ENERGIZING A MODULAR MULTILEVEL CONVERTER
The present disclosure relates to a method for energizing a modular multilevel converter (100) comprising converter valves (101), each converter valve having a plurality of interconnected cells (102), wherein each cell comprises a plurality of power electronic switches (105, 106, 107, 108) in a full-bridge arrangement, a chargeable element (109), and a plurality of gate drive units (118), one gate drive unit for each power electronic switch. The method includes: providing power to the modular multilevel converter from an external power supply (S201); powering the cells, thereby charging the chargeable elements of the cells (S202); generating, when a cell voltage caused by said charging exceeds a first threshold voltage level, a cell sub-ready signal for that cell (S203); generating, when at least a predetermined minimum number of cells have generated the sub-ready signal, a sub-ready_for_operation signal (S204); and running a deblocking sequence comprising closing a first power electronic switch (105) in all cells to electrically configure the cells to be continuously charged as a half-bridge cells, and keep the first power electronic switch closed until the cell voltage has reached a converter operable voltage, which is higher than a second threshold voltage (5205).
H02M 1/36 - Moyens pour mettre en marche ou arrêter les convertisseurs
H02M 1/00 - Détails d'appareils pour transformation
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
51.
PRESSURE COMPENSATOR AND SUBSEA TRANSFORMER SYSTEM
In at least one embodiment, the pressure compensator (1) is configured for subsea-use and comprises: - a first bellows chamber (21) configured to be filled with a first insulation liquid (61), - an electrical equipment (3) placed in the first bellows chamber (21), and - electrical feedthroughs (4) connecting the electrical equipment (3) with an exterior of the pressure compensator (1).
The invention relates to a power converter rack (1) comprising a plurality of sliding elements (4) arranged one above another inside the rack (1), a plurality of power converter modules (3) configured for each being carried on a respective sliding element (4) of the plurality of sliding elements (4) for being slid into and out of the rack (1) and each power converter module (3) of the plurality of power converter modules (3) comprising a flexible power cable (6) connecting the respective power converter module (3) with the rack (1), and at least one fan (10) configured for being carried on another one of the plurality of sliding elements (4) for being slid into and out of the rack (1).
In at least one embodiment, the pressure compensator (1) is configured for subsea-use and comprises: - a first bellows chamber (21) configured to be filled with a first insulation liquid (61), - an electrical equipment (3) placed in the first bellows chamber (21), and - electrical feedthroughs (4) connecting the electrical equipment (3) with an exterior of the pressure compensator (1).
An energy storage device is provided comprising a plurality of interconnected energy storage modules (102), an earthing busbar (104), and a protection unit (106). The protection unit comprises a resistor unit 108, a variable resistor unit (110) and a voltage detecting device (112). The variable resistor unit is connected in parallel to the resistor unit. The variable resistor unit is configured to change its resistance based on the voltage across the resistor unit. The voltage detecting device (112) is configured to detect a voltage deviation across the resistor unit and provide a feedback control signal to the energy storage device based on the detected voltage deviation. The protection unit is electrically connected between the plurality of interconnected energy storage modules and the earthing busbar.
H02H 9/04 - Circuits de protection de sécurité pour limiter l'excès de courant ou de tension sans déconnexion sensibles à un excès de tension
H02H 9/08 - Limitation ou suppression des courants de défaut à la terre, p. ex. bobine Petersen
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 7/16 - 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 capacités
H02H 7/18 - 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 pilesCircuits 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 accumulateurs
55.
INTEGRATION OF MANAGEMENT SYSTEM WITH DISTRIBUTED ENERGY RESOURCE MANAGEMENT SYSTEM USING PROBABILISTIC OPTIMAL POWER FLOW
Distributed energy resources may be outside the control of a utility. While these distributed energy resources may be managed by distributed energy resource (DER) management systems, the DER management systems do not have knowledge of the overall power network to which the distributed energy resources are connected and do not have the same objective as the utility. Consequently, operation of the distributed energy resources by the DER management systems may result in network violations. Accordingly, disclosed embodiments integrate knowledge from the management system of the utility into the DER management systems using probabilistic optimal power flow to generate operating ranges that may be used in the DER dispatch of each DER management system. These operating ranges may be used to constrain the DER dispatch, to thereby ensure secure and safe operation of the overall power network, while requiring little to no modifications in the DER management systems.
A method for detecting a fault in a power system is provided. The method comprises: obtaining current change at a first position of a power line in the power system and voltage change at a second position of the power line, the second position being located on a side of the first position opposite to a power source (1001); determining, based on the obtained current change and the obtained voltage change, transient energy indicating a fault direction of the fault relative to the first position (1002); determining energy thresholds based on line parameters of the power line and the obtained current change (1003); and identifying the fault direction based on comparison of the determined transient energy and the determined energy thresholds (1004). In the method, the thresholds for identifying the fault direction can be accurately determined in real time, thereby improving accuracy and response speed of the fault detection and protection.
Operators typically utilize techno-economic means to set peak power demand in power infrastructure sites, such as power depots and microgrids. However, conventional means tend to either produce sub-optimal values of peak power demand or be too computationally expensive to be performed in a real-time or scalable manner. Accordingly, disclosed embodiments utilize a sliding time window to continuously or periodically determine peak power demand in past, current, and future portions of a current time period. These embodiments are able to determine an optimal peak power demand for the current time period, while remaining computationally feasible for real-time performance and being scalable with the complexity of optimization.
An arrangement, which is connectable to an alternating current (AC) power transmission system, comprising a static synchronous compensator device having a converter unit and an energy storage unit connected with the converter unit; a power absorption device; and a control device connected with the static synchronous compensator device and with the power absorption device. The control device is configured to control the static synchronous compensator device to exchange power with the AC power transmission system, and to control the power absorption device in dependence of a state of charge of the energy storage unit and a state of the power transmission system. The control device is configured to determine whether there is a need to absorb active power from the AC power transmission system in excess of what the static synchronous compensator device is absorbing and, in case of a need, control the power absorption device to absorb active power.
G05B 13/02 - Systèmes de commande adaptatifs, c.-à-d. systèmes se réglant eux-mêmes automatiquement pour obtenir un rendement optimal suivant un critère prédéterminé électriques
H02J 3/32 - Dispositions pour l'équilibrage de charge dans un réseau par emmagasinage d'énergie utilisant des batteries avec moyens de conversion
59.
CONTACT SYSTEM FOR AN ON-LOAD TAP CHANGER AND ON-LOAD TAP CHANGER
A contact system (1) for a tap changer comprises a first and a second fixed contact unit (20) each with at least one fixed electrical contact element (24), and a movable contact unit with at least one movable electrical contact element (10). The moveable contact unit comprises a two-level driving contact with contact portions (11, 12) which are arranged offset to each other with respect to a rotation axis (R2) of the moveable contact element (10). The contact system (1) further comprises a driving unit (3) to rotationally drive the movable contact element (10) towards the respective fixed contact element (24) of the associated fixed contact unit (20). The driving unit (3) comprises a two-level driving contact with protrusions (6, 7) which are arranged offset to each other with respect to a rotation axis (R1) of the driving unit (3). The movable contact unit and the driving unit (3) are configured so that a first state, in which the movable contact element (10) is in electrical contact with the contact element (24) of the first fixed contact unit (20), and a second state, in which the moveable contact element (10) is in electrical contact with the contact element (24) of the second fixed contact unit (20), are settable.
It is difficult to predict an influence of vegetation on a feature with high accuracy. Accordingly, in an embodiment, a vegetation management system, that manages an influence of vegetation on a predetermined feature, includes: an acquisition unit that acquires remote sensing image data of the vegetation; a classification unit that classifies, based on the remote sensing image data, a tree included in the vegetation in accordance with growth activity representing potential for future growth; a growth prediction unit that predicts growth of the tree based on a classification result obtained by the classification unit; a risk determination unit that determines risk of contact with the predetermined feature; and a visualization unit that outputs and visualizes a determination result obtained by the risk determination unit.
G06V 10/62 - Extraction de caractéristiques d’images ou de vidéos relative à une dimension temporelle, p. ex. extraction de caractéristiques axées sur le tempsSuivi de modèle
G06V 10/764 - Dispositions pour la reconnaissance ou la compréhension d’images ou de vidéos utilisant la reconnaissance de formes ou l’apprentissage automatique utilisant la classification, p. ex. des objets vidéo
G06V 10/77 - Traitement des caractéristiques d’images ou de vidéos dans les espaces de caractéristiquesDispositions pour la reconnaissance ou la compréhension d’images ou de vidéos utilisant la reconnaissance de formes ou l’apprentissage automatique utilisant l’intégration et la réduction de données, p. ex. analyse en composantes principales [PCA] ou analyse en composantes indépendantes [ ICA] ou cartes auto-organisatrices [SOM]Séparation aveugle de source
61.
METHODS, DEVICE AND STORAGE MEDIUM FOR DETERMINING A WAVE SPEED OR PROPAGATION VELOCITY IN A POWER GRID
The present disclosure relates to a method for obtaining a wave speed or propagation velocity in a power grid comprising a transmission line connected between two buses comprising determining a voltage and current at at least one bus, determining a propagation constant5 using the voltage and the current, determining line parameters based on the propagation constant and determining a wave speed or propagation velocity based on the line parameters. The disclosure also relates to a corresponding storage medium, device and power grid.
H02J 3/00 - Circuits pour réseaux principaux ou de distribution, à courant alternatif
G01R 31/08 - Localisation de défauts dans les câbles, les lignes de transmission ou les réseaux
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
62.
METHODS, DEVICE AND STORAGE MEDIUM FOR DETERMINING A WAVE SPEED OR PROPAGATION VELOCITY IN A POWER GRID
The present disclosure relates to a method for determining a wave speed or propagation velocity in a power grid comprising a transmission line connected between two buses. The method comprises obtaining a voltage and current at at least one bus, determining a propagation constant using the voltage and the current, and determining a wave speed or propagation velocity based on the propagation constant.
H02J 3/00 - Circuits pour réseaux principaux ou de distribution, à courant alternatif
G01R 31/08 - Localisation de défauts dans les câbles, les lignes de transmission ou les réseaux
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
63.
ON-LOAD TAP CHANGER, TRANSFORMER AND OPERATING METHOD
In one embodiment, the on-load tap changer (1) is f or a distribution transformer (10) and comprises: - a driving system (2) including a force store unit (31), - a slow-moving selector contact package (4), and - a fast-moving selector contact package (5), wherein - the driving system (2) is to move the slow-moving selector contact package (4) with a first speed and the fast -moving selector contact package (5) with a second, higher speed from a first selector contact (11) to a second selector contact (12) of the transformer (10), - the driving system (2) is to begin movement of the fast-moving selector contact package (5) later than movement of the slow-moving selector contact package (4), and - the force store unit (31) is loaded during movement of the slow-moving selector contact package (4) and is unloaded to drive movement of the fast-moving selector contact package (5).
H01H 9/00 - Détails de dispositifs de commutation non couverts par
H01F 29/04 - Transformateurs ou inductances variables non couverts par le groupe avec prises sur les bobines ou les enroulementsTransformateurs ou inductances variables non couverts par le groupe avec possibilités de regroupement ou d'interconnexion des enroulements avec possibilité de changer de prise sans interrompre le courant de charge
H01H 3/40 - Mécanismes-moteurs, c.-à-d. pour transmettre la force motrice aux contacts utilisant la friction ou des appareillages dentés ou à vis écrou
H01H 3/26 - Dispositions comportant une énergie à l'intérieur de l'interrupteur pour actionner le mécanisme d'entraînement utilisant un moteur dynamo-électrique
64.
OBTAINING STATE OF HEALTH AND STATE OF CHARGE OF A BATTERY
The present disclosure relates to a method for obtaining a state of health, SOH, and state of charge, SOC, of a battery. The method comprises obtaining real-time data of the battery, the real time data including voltage, current, temperature, initial SOC, and an initial SOH, obtaining battery parameters from a look up table, LUT, based on the real-time current, temperature, initial SOC, and an initial SOH and obtaining a new SOC and new SOH based on the battery parameters, real-time current, real-time voltage, initial SOC, and initial SOH. The disclosure further relates to a corresponding device, system and computer-readable storage medium.
G01R 31/392 - Détermination du vieillissement ou de la dégradation de la batterie, p. ex. état de santé
G01R 31/367 - Logiciels à cet effet, p. ex. pour le test des batteries en utilisant une modélisation ou des tables de correspondance
G01R 31/388 - Détermination de la capacité ampère-heure ou de l’état de charge faisant intervenir des mesures de tension
H01M 10/42 - Procédés ou dispositions pour assurer le fonctionnement ou l'entretien des éléments secondaires ou des demi-éléments secondaires
H01M 10/48 - Accumulateurs combinés à des dispositions pour mesurer, tester ou indiquer l'état des éléments, p. ex. le niveau ou la densité de l'électrolyte
There is disclosed herein a method for controlling a grid-connected modular multilevel converter, MMC (100), wherein the MMC (100) comprises a plurality of phase arms (104a-1, 104b-1, …, 104c-1), and each phase arm 5 (104a-1, 104b-1, …, 104c-1) comprises a plurality of series-connected converter cells (106) each having respective DC units (108). The method comprises determining a dissimilarity in loading between DC units (108) in a first phase arm (104a-1) and, in response to determining the dissimilarity, determining a first phase arm power to be delivered by the first phase arm 10 (104a-1). The method further comprises determining a cell power to be delivered each cell (106) in the first phase arm (104a-1) by distributing the first phase arm power among the cells (106) in the first phase arm (104a-1), and controlling the cells (106) in the first phase arm (104a-1) to deliver their respective determined cell power. There is further disclosed herein an MMC 15 converter (102-1) configured to carry out such a method, and a system (100) comprising a plurality of such MMC converters (102-1, 102-2, …, 102-N).
The invention relates to a current limiting fuse which comprises a first terminal end cap (3), a second terminal end cap (3´), and a fusible element (1) disposed between and connected to the first terminal end cap (3) and the second terminal end cap (3´). The fusible element (1) consists of or comprises a tubular element. The tubular element allows the fusible element to have a larger diameter as compared to a fusible element according to the prior art. The larger diameter of the fusible element results in reduced dielectric stress and this again leads to less partial discharges.
A measurement device (1) for high power measurement of a semiconductor device (10) comprises the semiconduct or device (10) and a frame (2) enclosing the semiconductor device (10) with respect to a lateral direction (B) perpendicular to an upright direction (A). The measurement device (1) further comprises a power supply (4) which is electrically coupled to the semiconductor device (10) for supplying a given high voltage or current to the semiconductor device (10). The measurement device (1) further comprises a detector (5) for detecting an imaging signal of the semiconductor device (10), and a dielectric liquid (3) which comprises a predetermined dielectric strength and which is arranged inside th e frame (2) covering the semiconductor device (10) such that the semiconductor device (10) is immersed in the dielectric liquid (3).
H05B 7/144 - Sources de puissance spécialement adaptées pour le chauffage par décharge électriqueCommande automatique de la puissance, p. ex. en commandant la position des électrodes
F27B 3/28 - Aménagement des dispositifs de commande, de surveillance, d'alarme ou des dispositifs similaires
H02M 5/00 - 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
69.
COMPUTER-IMPLEMENTED METHOD, COMPUTER PROGRAM PRODUCT, APPARATUS, AND COMPUTER READABLE MEDIUM
The present disclosure relates to a computer-implemented method of codebase parsing for providing input of a language model (10), comprising providing at least one codebase to the language model; providing metadata relating to the codebase to the language model; and segmenting the at least one codebase into a plurality of codebase portions. Each codebase portion is associated with a portion of the metadata which corresponds to the respective codebase portion. The present disclosure also relates to computer-implemented method of interacting with a language model (10), a computer program product, an apparatus (500), and a computer readable medium (520).
09 - Appareils et instruments scientifiques et électriques
17 - Produits en caoutchouc ou en matières plastiques; matières à calfeutrer et à isoler
Produits et services
Electronic installations, namely, high-voltage feedthroughs
for use with transformers. Ceramic electrical insulators; electrical insulators made of
rubber; dielectrics (insulators); insulating paper;
insulating materials; insulating splice sleeves for
electrical cables; insulating sleeves for power lines;
insulators and insulating agents for electricity, heat and
sound; electrical insulating materials; electrical
insulators and insulating agents.
71.
MANUFACTURING METHOD FOR A POWER SEMICONDUCTOR DEVICE AND POWER SEMICONDUCTOR DEVICE
A manufacturing method for a power semiconductor device, comprising forming at least one insulating layer on a surface of a crystalline growth substrate, the at least one insulating layer comprising at least one cavity extending in a lateral direction within the at least one insulating layer; selectively growing a wide bandgap, WBG, semiconductor material within the cavity to form a lateral epi-layer, wherein a surface area of the growth substrate exposed through at least one passage formed between the at least one cavity and the growth substrate is uses as a seed area for epitaxially growing the WBG semiconductor material; and forming at least one semiconductor junction, in particular a pn junction, a np junction or a Schottky junction, within or at an end of the selectively grown WBG semiconductor material.
A power module (10) comprising a carrier (1), a plurality of semiconductor devices (2) and at least one bridge structure (5, 5A, 5B) is provided. The carrier (1) comprises a mounting surface (1M) on which the semiconductor devices (2) are arranged along an upper line (HL) and along a lower line (LL). The mounting surface (1M) comprises a plurality of main metallization areas (3, 3A, 3B, 3C) and a plurality of auxiliary metallization areas (4A, 4B, 4C, 4D), wherein the main and auxiliary metallization areas (3, 3A, 3B, 3C, 4, 4A, 4B, 4C, 4D) are spaced apart from each other, and wherein the main metallization areas (3, 3A, 3B, 3C) provide locations (8, 8P) for power terminals (7, 7P) of the power module (10) configured for electrically contacting the semiconductor devices (2). In top view, the at least one bridge structure (5, 5A, 5B) bridges over one of the main metallization areas (3, 3A, 3B, 3C) for electrically connecting another one of the main metallization areas (3, 3A, 3B, 3C) with one of the auxiliary metallization areas (4, 4A, 4B, 4C, 4D). Moreover, a method for improving switching performance of a power module is provided. Significant
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
H01L 25/18 - Ensembles consistant en une pluralité de dispositifs à semi-conducteurs ou d'autres dispositifs à l'état solide les dispositifs étant de types prévus dans plusieurs différents groupes principaux de la même sous-classe , , , , ou
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
73.
OFFSHORE MODULES FOR CONVERTING POWER IN BI-POLE MODE, AN OFFSHORE PLATFORM SYSTEM AND A METHOD THEREOF
There is disclosed herein a first offshore module (10A) comprising an AC termination device (20A) providing AC power to a converter unit (30A) of the first offshore module, a DC pole termination device (32A) configured to provide a first DC output (33A) and a DC neutral termination device (34A) configured to provide a DC terminal at neutral potential (35). The first offshore module further comprises a connection arrangement (40A) configured to connect the first offshore module to another offshore module, a control system (52A) configured to operate the first offshore module in a monopole mode, or if the first offshore module is connected to said another offshore module, to operate at least one of the offshore modules in a bi-pole mode or in a monopole mode. There is also disclosed herein a second offshore module (10B), an offshore platform system (1) and a method (100).
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
74.
CONTACT SYSTEM FOR AN ON-LOAD TAP CHANGER, ON-LOAD TAP CHANGER AND METHOD FOR OPERATING A CONTACT SYSTEM
A contact system (1) for an on-load tap changer (30) comprises a movable contact (2) configured to switch between several fixed contacts (3, 4) in a switching operation, wherein the movable contact (2) comprises a contact portion (6) for establishing an electrical contact with one of the fixed contacts (3, 4) in an operating position, wherein each of the fixed contacts (3, 4) comprises two jaws (5a, 5b) configured for clamping the movable contact (2), wherein each of the fixed contacts (3, 4) comprises two rollers (11a, 11b), wherein the movable contact (2) comprises a cam portion (12) configured to move between the two rollers (11a, 11b) for opening the jaws (5a, 5b) in a switching operation.
Method of controlling a distribution network and a microgrid controller adapted for the method. The distribution network comprises assets in a first part and a second part, which parts are selectively connected to each other into an interconnected state at a connection point (PCC). The method comprises monitoring and controlling the assets of the distribution network. In a first control mode, the first part is controlled by a distribution network controller and the second part is controlled by the microgrid controller. Especially, the method includes selecting between controlling the distribution network in the interconnected state in accordance with the first control mode, and controlling the distribution network in the interconnected state in accordance with a second control mode, in which second control mode the assets of the both the first part and the second part are controlled by the distribution network controller.
H02J 3/06 - Commande du transfert de puissance entre réseaux connectésCommande du partage de charge entre réseaux connectés
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
76.
BYPASS CONTACT SYSTEM, VACUUM INTERRUPTER MODULE AND TAP CHANGER
A bypass contact system (10) for an interrupter module (1) for a tap changer comprises a first and a second bypass contact (11, 12) each with a first or second lever system (13, 14), a first or second carrier (16) and a first or second plurality of moveable contact elements (20), respectively. The respective contact elements (20) are attached to the associated carrier (16) which is pivotably coupled to the associated lever system (13, 14). Both the first and the second contact elements (20) each comprise a predetermined outer shape with at least two respective contact regions (23, 24) which are configured in coordination with contact elements (4, 6) of the interrupter module (1), so that in a first state, in which at least one contact region (23, 24) is free of contact with at least one contact element (4, 6) of the interrupter module (1), and a second state, in which all contact regions (23, 24) of the associated bypass contact (11, 12) are in contact with all associated contact elements (4, 6) of the interrupter module (1). In the respective second state, the corresponding contact regions (23, 24) of the associated contact elements (20) each establish at least a four-point electrical contact to the contact elements (4, 6) of the interrupter module (1).
H01H 1/06 - Contacts caractérisés par la forme ou la structure de la surface de contact, p. ex. striée
H01H 9/00 - Détails de dispositifs de commutation non couverts par
H01H 1/22 - Contacts caractérisés par la manière dont les contacts coopérants s'engagent en butant l'un contre l'autre avec membre pivotant rigide portant le contact mobile
77.
FAULT LOCATION DETERMINATION IN A POWER TRANSMISSION SYSTEM
Fault location determination in a power transmission system is described. Samples of voltage and current measured are obtained for each phase at a terminal. A first equivalent reactance value based on the samples of voltage and current is calculated. Further, based on the calculated equivalent reactance value a first fault location is determined.
A static contact unit (20) for a tap changer comprises a contact body (4), a pair of contact elements (5) and a spring element (6). The contact body (4) is configured to be arranged statically with respect to a movable contact (3) that is arranged at a moving shaft (1) of the tap changer. The two contact elements (5) are coupled to the contact body (4) configured to establish an electrical contact to the movable contact (3) of the moving shaft (1). The spring element (6) is coupled to both contact elements (5) inbetween with respect to a longitudinal axis (L1) of the moving shaft (1) configured to bias the contact elements (5) so that, with respect to a state in which the tap changer is assembled, the contact elements (5) are biased simultaneously in direction towards each other in sections at least.
A power semiconductor device comprises a semiconductor body with a top side, and a main electrode and an adjacent gate electrode thereon. The semiconductor body comprises a drift layer of a first conductivity type, a base region of a second conductivity type between the drift layer and the top side, a contact region of the first conductivity type between the drift layer and the top side. The contact region adjoins the base region and the top side. The semiconductor body comprises a drift region of the first conductivity type arranged next to and adjoining the base region. The main electrode is in electrical contact with the contact region. The gate electrode at least partially covers a channel portion of the base region, which lies between the contact region and the drift region. At least one of the contact region and the drift region projects beyond the base region.
H10D 62/17 - Régions semi-conductrices connectées à des électrodes ne transportant pas de courant à redresser, amplifier ou commuter, p. ex. régions de canal
H10D 62/60 - Distribution ou concentrations d’impuretés
H10D 64/27 - Électrodes ne transportant pas le courant à redresser, à amplifier, à faire osciller ou à commuter, p. ex. grilles
80.
METHOD FOR PRODUCING A SEMICONDUCTOR DEVICE AND SEMICONDUCTOR DEVICE
A method comprises providing a semiconductor body with a top side. A mask is applied on the top side of the semiconductor body, wherein the mask comprises at least one first section and at least one second section. The at least one second section is laterally adjacent to the at least one first section. The mask is thicker in the at least one second section than in the at least one first section. A channel region of a first conductivity type is formed in the semiconductor body in the area of the at least one first section. Forming the channel region comprises implanting first-type dopants through the top side into the semiconductor body. An auxiliary layer is deposited on a lateral side of the at least one second section, the lateral side facing towards the at least one first section.
H10D 62/10 - Formes, dimensions relatives ou dispositions des régions des corps semi-conducteursFormes des corps semi-conducteurs
H10D 84/00 - Dispositifs intégrés formés dans ou sur des substrats semi-conducteurs qui comprennent uniquement des couches semi-conductrices, p. ex. sur des plaquettes de Si ou sur des plaquettes de GaAs-sur-Si
81.
POWER SEMICONDUCTOR MODULE AND METHOD FOR MANUFACTURING THE POWER SEMICONDUCTOR MODULE
The invention relates to a power semiconductor module (10) comprising a support (11) with an electrically conductive region (12) on a first side (18) of the support (11), at least one power semiconductor device (14) and at least one terminal (16), preferably a power terminal (16), wherein the power semiconductor device (14) is attached to the first side (18) of the support (11) being electrically connected to the conductive region (12), and wherein the terminal (16) for connecting the power semiconductor module (10) with an external source is attached to the first side (18) of the support (11) such that the terminal (16) has at least two distinct contact areas (24a, 24b) to the first side (18), at least one contact area (24a, 24b) is electrically connected to the conductive region (12), and in between the two contact areas (24a, 24b) a bridge (26) spanning over at least one power semiconductor device (14) is formed. Furthermore, the invention relates to a method for manufacturing the above power semiconductor module (10).
H01L 23/34 - Dispositions pour le refroidissement, le chauffage, la ventilation ou la compensation de la température
H01L 23/367 - Refroidissement facilité par la forme du dispositif
H01L 23/498 - Connexions électriques sur des substrats isolants
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
82.
POWER DEVICE, SYSTEM, AND METHOD FOR PRODUCING A POWER DEVICE
A power device (1) is specified, comprising - at least one power semiconductor chip arranged on a mounting portion (2), - a package body (3), for the at least one power semiconductor chip, with at least one recess (4) ex posing at least one partial region of a connection region (5), - a terminal block (6) comprising - a molded block (7) with at least one further recess (8), and - at least one first terminal (9) arranged in the at least one further recess (8), wherein - the terminal block (6) is arranged on the package body (3), - the at least one first terminal (9) is further arranged in the at least one recess (4) of the package body (3), - the at least one first terminal (9) is electrically connected to the at least one partial region of the connection region (5). Furthermore, a system and a method for producing a power device are specified.
H01L 23/498 - Connexions électriques sur des substrats isolants
H01L 23/31 - Encapsulations, p. ex. couches d’encapsulation, revêtements caractérisées par leur disposition
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
222 and comprising an elevated and pre-determined operating gas pressure level, and the permeation barrier (5) comprises aluminium oxide and/or silicon oxide as permeation barrier layer (6), a carrier layer (7) protecting the barrier layer (6), which carrier layer (7) surrounds the permeation barrier layer (6) and a wettability layer (8) for increasing a surface energy, which wettability layer (8) surrounds both the permeation barrier layer (6) and the carrier layer (7).
H01H 33/02 - Interrupteurs pour haute tension ou courant fort comportant des moyens d'extinction ou de prévention des arcs Détails
H02B 13/01 - Aménagement d'appareillages de commutation dans, ou structurellement associés avec, une enveloppe, p. ex. une armoire avec une enveloppe de résine
H02B 1/28 - EnveloppesLeurs parties constitutives ou accessoires à cet effet étanches à la poussière, aux projections, aux éclaboussures, à l'eau ou aux flammes
H01B 3/40 - Isolateurs ou corps isolants caractérisés par le matériau isolantEmploi de matériaux spécifiés pour leurs propriétés isolantes ou diélectriques composés principalement de substances organiques matières plastiquesIsolateurs ou corps isolants caractérisés par le matériau isolantEmploi de matériaux spécifiés pour leurs propriétés isolantes ou diélectriques composés principalement de substances organiques résinesIsolateurs ou corps isolants caractérisés par le matériau isolantEmploi de matériaux spécifiés pour leurs propriétés isolantes ou diélectriques composés principalement de substances organiques cires résines époxy
H02B 13/045 - Détails de l'enveloppe, p. ex. étanchéité au gaz
To perform a grid outage prediction, a processing system (30) uses a data-driven processing technique (32) to determine a grid outage indicator that quantifies a number or fraction of customers in an area predicted to experience a grid outage over a predictive horizon. The processing system (30) provides input signals, based on input data (28) received by the processing system (30), to the data-driven processing technique (32).
H02J 3/00 - Circuits pour réseaux principaux ou de distribution, à courant alternatif
G06Q 10/04 - Prévision ou optimisation spécialement adaptées à des fins administratives ou de gestion, p. ex. programmation linéaire ou "problème d’optimisation des stocks"
The present invention provides method, a device and a computer-readable medium for determining a fault location in a power transmission line. According to the invention, a phasor- based fault location and a traveling wave fault location are determined. The fault location is determined based on the determined phasor-based fault location and the determined traveling wave fault location. Preferably, when the determined traveling wave fault location is consistent with the determined phasor-based fault location, the determined traveling wave fault location is used as the fault location, while otherwise, the determined phasor-based fault location is used.
State-of-the-art machine-learning models for forecasting fail to address the non- stationarity and uncertainty in data, rely on assumptions about data distribution, and/or produce unusable probability distributions. Accordingly, a machine-learning architecture for end-to- end probabilistic forecasting is disclosed to address these and other problems. In particular, the machine-learning model may utilize a persistence module that outputs a seed forecast value of a target variable, a neural-network stack that predicts incremental forecast value(s) of the target variable (e.g., using back-casting), and an aggregator that aggregates the seed forecast value and the incremental forecast value(s) to produce an aggregate forecast value of the target variable. In an embodiment, this aggregate forecast value may be input to an incremental quantile module that comprises a second neural-network stack to predict the forecast value of the target variable for each of a plurality of quantiles, and which aggregates these forecast values into a probability distribution.
G06N 3/084 - Rétropropagation, p. ex. suivant l’algorithme du gradient
G06Q 10/04 - Prévision ou optimisation spécialement adaptées à des fins administratives ou de gestion, p. ex. programmation linéaire ou "problème d’optimisation des stocks"
87.
POWER MODULE AND METHOD FOR PRODUCING A POWER MODULE
According to an embodiment, the power module (100) comprises a power semiconductor device (1) and a connection element (2) for electrically connecting the power semiconductor device. Furthermore, the arrangement comprises a sensing element (3) for measuring a measurand. A bond section (21) of the connection element is bonded to and electrically connected with the power semiconductor device. The sensing element is mounted on the connection element and spaced from the bond section.
A static contact unit (20) for a tap changer comprises a contact body (4), one or more contact elements and a spring element. The contact body (4) is configured to be arranged statically with respect to a movable contact of a moving shaft (1) of the tap changer. The at least one contact element (5) is pivotably coupled to the contact body (4) configured to establish an electrical contact to a movable contact (3) that is arranged at the moving shaft (1). The spring element (6) is coupled to the contact element (5) configured to bias the contact element (5) so that, with respect to a state in which the tap changer is assembled, the contact element (5) is preloaded in direction of the moving shaft (1) with respect to a longitudinal axis (L) of the moving shaft (1).
H01H 9/00 - Détails de dispositifs de commutation non couverts par
H01F 29/04 - Transformateurs ou inductances variables non couverts par le groupe avec prises sur les bobines ou les enroulementsTransformateurs ou inductances variables non couverts par le groupe avec possibilités de regroupement ou d'interconnexion des enroulements avec possibilité de changer de prise sans interrompre le courant de charge
H01H 1/56 - Dispositions de contacts assurant une fermeture avant ouverture, p. ex. pour changement de prise sous charge
89.
METHOD AND DATA PROCESSING SYSTEM FOR ONLINE STATE OF HEALTH DIAGNOSIS FOR A BATTERY ENERGY STORAGE SYSTEM, AND METHOD OF PROVIDING A DATA-DRIVEN PROCESSING MODEL THEREFOR
To perform an online state of health (SOH) diagnosis for a battery energy storage system (BESS) (40), a data processing system (20) determines incremental capacity analysis (ICA) data for a voltage range selected from a set of predefined voltage ranges. The data processing system (20) is operative to perform a feature extraction (33) to extract features from the ICA data for the voltage range, and to apply a data-driven processing model (34) that receives an input based on the features.
An energy storage system (1) is specified, comprising - an energy storage string (2) with energy storage modules (3) connected in series through current breaking elements (6), and - a parallel line with switches (9) being connected in series, wherein - each energy storage module (3) is connected to on e of the current breaking elements (6), - each switch (9) is connected in parallel with a respective energy storage module (3) and a respective current breaking element (6), - the respective switch (9) is configured to provid e a current path through the respective energy storage module (3) and the respective current breaking element (6), an d - the respective switch (9) is configured to discon nect the respective energy storage module (3) from the energy storage string (2). Additionally, a method for electrically isolating at least one energy storage module in an energy storage system and a method for transferring energy from at least one en ergy storage module to at least one other energy storage module in an energy storage system is specified.
A bushing (100) for a liquid-insulated electrical apparatus (200) is disclosed. The bushing (100) comprises an electrical conductor (101) and an insulator body (110) through which the electrical conductor (101) extend s, wherein the insulator body (110) comprises a main part (112 ) and an outer cover (150), the outer cover (150) covering the main part (112) at least in a middle part area (180), wherein the main part (112) comprises two or more separate parts (121, 122) stacked along a longitudinal axis (102) of the conductor (101) and wherein the main part (112) and the outer cover (150) are fixed to each other, the main part is mad e of thermoplastic (115) and the outer cover (150) is ma de of elastomeric material (151) and wherein the insulator body (110) comprises a weather shed (116), the weather shed (116) being formed by a projecting part (181) of one of the separate parts (121, 122) which is covered by the c over (150).
A bushing (100) for a liquid-insulated electrical apparatus (200) is disclosed. The bushing (100) comprises an electrical conductor (101) and an insulator body (110) through which the electrical conductor (101) extends, wherein the insulator body (110) comprises a main part (112) and an outer cover (150), the outer cover (150) covering the main part (112) at least in part, the main part (122) is made of thermoplastic (115) and the external cover (150) is made of elastomeric material (151), wherein the elastomeric material (1 51) comprises a self-adhesive silicone rubber or consists of a self-adhesive silicone rubber, and wherein the main part (112) and the outer cover (150) are fixed to each other by a chemical bond.
A bushing (100) for a liquid-insulated electrical apparatus (200) is disclosed. The bushing (100) comprises an electrical conductor (101) and an insulator body (110) through which the electrical conductor (101) extends, wherein the insulator body (110) comprises a main part (112) and a plurality of projecting ribs (130), wherein the main part (112) comprises a hollow cylinder shape (113) and wherein the projecting ribs (130) each project radially inwards from the main p art (112) and wherein the projecting ribs (130) comprise a each a main extension (131) along a longitudinal axis (102) of the conductor (101) and a free end (135) facing the electrical conductor (101).
The invention relates to a circuit-breaker (1), comprising at least two contacts (3, 3.1, 4, 4.1) with at least one of the at least two contacts (3, 3.1, 4, 4.1) movable and with an arcing zone (5) between the at least two contacts (3, 3.1, 4, 4.1); at least one exhaust (8, 9) in fluid connection to the arcing zone (5) and including an outlet (12) for letting out insulating gas; and a gas mixing structure (20) installed in a gas flow path between the arcing zone (5) and the outlet (12); wherein the gas mixing structure (20) includes a static mixer (40) forming a plurality of gas passages (41, 42) at least sectionally and/or partially arranged oblique to each other and configured for mixing the insulating gas passing the plurality of gas passages (41, 42).
The invention relates to a circuit-breaker (1), comprising at least two contacts (3, 3.1, 4, 4.1) with at least one of the at least two contacts (3, 3.1, 4, 4.1) movable and with an arcing zone (5) between the at least two contacts (3, 3.1, 4, 4.1); at least one exhaust (8, 9) in fluid connection to the arcing zone (5) and including an outlet (12) for letting out insulating gas; and a gas mixing structure (20) installed in a gas flow path between the arcing zone (5) and the outlet (12); wherein the gas mixing structure (20) includes a static mixer (40) forming a plurality of gas passages (41, 42) at least sectionally and/or partially arranged oblique to each other and configured for mixing the insulating gas passing the plurality of gas passages (41, 42).
To make information on an energy flow composition available for an electric power system (40), devices (31-36) of a communication system (30) exchange data specifying the energy flow composition. The devices (31-36) are operative to exchange the data by means of a message exchange that generally follows the energy flow paths in a power grid (10) of the electric power system (40).
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
H02J 3/28 - Dispositions pour l'équilibrage de charge dans un réseau par emmagasinage d'énergie
97.
AN ADAPTIVE ARRANGEMENT OF NETWORK RESOURCES IN AN ELECTRICAL NETWORK
Embodiments of the present disclosure provide a method (300) and system (200) for adaptive arrangement of network resources in electrical network. The system (200) receives network criteria to identify network-related information. The network criteria are used to arrange network resources in electrical network. The system (200) generates first topology of electrical network according to the network criteria. The first topology has first arrangement of network resources in each node in the first topology. The system (200) identifies effect of network constraint parameters over the first arrangement of network resources in the first topology. The effect identifies performance of network resources in the first arrangement. The system (200) selects second arrangement of network resources in the first topology according to the effect of each constraint over network resources.
Embodiments of the present disclosure provide a system (200) and method (300) for registering unknown objects into a device management system. The method comprises receiving (302), through a processor (204), one or more object data related to an object. The object is unknown to the device management system. The method further comprises extracting (304) one or more object identifiers from the one or more object data to identify the one or more objects, transmitting (306) the one or more object identifiers to an external source to identify a refined information about the object. The refined information is used to classify the object. The method further comprises registering (308) the object with the device management system according to the classification of the object.
G06V 10/764 - Dispositions pour la reconnaissance ou la compréhension d’images ou de vidéos utilisant la reconnaissance de formes ou l’apprentissage automatique utilisant la classification, p. ex. des objets vidéo
G06V 10/82 - Dispositions pour la reconnaissance ou la compréhension d’images ou de vidéos utilisant la reconnaissance de formes ou l’apprentissage automatique utilisant les réseaux neuronaux
99.
SYSTEM CONTROL UTILIZING ALGORITHMIC FRAMEWORK TO SOLVE LINEAR AND NON-LINEAR OPTIMIZATION PROBLEMS
Traditional algorithms for solving constrained optimization problems are complicated to implement, difficult to interpret, and require significant computational resources. Disclosed embodiments convert constrained optimization problems into parametric optimization problems, in which at least a subset of the constraints are converted into parametric quadratic penalty (PQP) terms that each depends on a translational parameter. The parametric optimization problem may be used for optimization in a power system (e.g., for optimal power flow, economic dispatch, etc.). When solving the parametric optimization problem, the translational parameters are updated to ensure convergence. The parametric optimization problem can be solved with reduced computational expense, using only a linear equation solver to solve a sequence of primal variables only, thereby reducing computational complexity and expense. In addition, the disclosed embodiments provide a means to incorporate constraints into machine-learning algorithms. The disclosed algorithmic framework also provides interpretability and insights for analysis.
G06F 17/11 - Opérations mathématiques complexes pour la résolution d'équations
H02J 3/00 - Circuits pour réseaux principaux ou de distribution, à courant alternatif
G06Q 10/04 - Prévision ou optimisation spécialement adaptées à des fins administratives ou de gestion, p. ex. programmation linéaire ou "problème d’optimisation des stocks"
There is disclosed herein a method (100) for sub-synchronous damping control, SSDC, for a STATCOM (20) connected to an alternating current, AC, power grid (2). The method comprises measuring (110) a voltage representative of the voltage of the AC power grid and subjecting (120) the voltage to a low-pass filter and a high-pass filter. The method further comprises cross-coupling (130) an active power order of the voltage with a reactive power decoupler parameter of the voltage to receive a voltage phase angle parameter and cross-coupling a reactive power order of the voltage with an active power decoupler parameter of the voltage to receive a voltage magnitude parameter, and combining (140) the voltage phase angle parameter and the voltage magnitude parameter to provide a voltage reference to the STATCOM. There is also disclosed herein a converter for a STATCOM and a system comprising a STATCOM and said controller.
