unified11,processed22,processed1,processedexternal12,processedexternal2,processedunifiedunified) by using interfacing function, first control signal and second control signal.
H02J 3/38 - Arrangements for parallelly feeding a single network by two or more generators, converters or transformers
H02J 3/40 - Synchronising a generator for connection to a network or to another generator
H02M 7/5387 - Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a bridge configuration
2.
PROTECTION ARRANGEMENT FOR 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 - Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection responsive to excess current for DC applications
H02H 7/16 - Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for capacitors
H02H 7/18 - Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for batteriesEmergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for accumulators
H02J 3/18 - Arrangements for adjusting, eliminating or compensating reactive power in networks
H02H 3/02 - Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection Details
H02H 9/02 - Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess current
H02H 7/26 - Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occurred
3.
COMPONENT OF A TRANSFORMER AND TRANSFORMER COMPRISING SAID COMPONENT
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 - Conductors or conductive bodies characterised by the conductive materialsSelection of materials as conductors mainly consisting of metals or alloys
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 - Semiconductor bodies, or regions thereof, of devices having potential barriers characterised by the materials being Group III-V materials, e.g. GaAs
H10D 62/83 - Semiconductor bodies, or regions thereof, of devices having potential barriers characterised by the materials being Group IV materials, e.g. B-doped Si or undoped Ge
H10D 62/80 - Semiconductor bodies, or regions thereof, of devices having potential barriers characterised by the materials
6.
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.
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).
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).
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.
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 - Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
H02H 9/08 - Limitation or suppression of earth fault currents, e.g. Petersen coil
H02H 3/16 - Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection responsive to fault current to earth, frame or mass
G01R 31/52 - Testing for short-circuits, leakage current or ground faults
H02H 7/16 - Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for capacitors
H02H 7/18 - Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for batteriesEmergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for accumulators
16.
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.
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.
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 - Circuit arrangements for ac mains or ac distribution networks
G01R 31/08 - Locating faults in cables, transmission lines, or networks
H02J 13/00 - Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the networkCircuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
20.
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 - Circuit arrangements for ac mains or ac distribution networks
G01R 31/08 - Locating faults in cables, transmission lines, or networks
H02J 13/00 - Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the networkCircuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
21.
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 - Details of switching devices, not covered by groups
H01F 29/04 - Variable transformers or inductances not covered by group with tappings on coil or windingVariable transformers or inductances not covered by group with provision for rearrangement or interconnection of windings having provision for tap-changing without interrupting the load current
H01H 3/40 - Driving mechanisms, i.e. for transmitting driving force to the contacts using friction, toothed, or screw-and-nut gearing
H01H 3/26 - Power arrangements internal to the switch for operating the driving mechanism using dynamo-electric motor
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).
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).
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 - Assemblies consisting of a plurality of individual semiconductor or other solid-state devices all the devices being of a type provided for in a single subclass of subclasses , , , , or , e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in subclass
H01L 25/18 - Assemblies consisting of a plurality of individual semiconductor or other solid-state devices the devices being of types provided for in two or more different main groups of the same subclass of , , , , or
H02M 7/5387 - Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a bridge configuration
28.
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).
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.
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 characterised by the shape or structure of the contact-making surface, e.g. grooved
H01H 9/00 - Details of switching devices, not covered by groups
H01H 1/22 - Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact
31.
STATIC CONTACT UNIT, CONTACT SYSTEM AND TAP CHANGER
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.
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 25/07 - Assemblies consisting of a plurality of individual semiconductor or other solid-state devices all the devices being of a type provided for in a single subclass of subclasses , , , , or , e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in subclass
33.
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 23/31 - Encapsulation, e.g. encapsulating layers, coatings characterised by the arrangement
H01L 25/07 - Assemblies consisting of a plurality of individual semiconductor or other solid-state devices all the devices being of a type provided for in a single subclass of subclasses , , , , or , e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in subclass
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).
H02B 1/28 - CasingsParts thereof or accessories therefor dustproof, splashproof, drip-proof, waterproof or flameproof
H01B 3/40 - Insulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances plasticsInsulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances resinsInsulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances waxes epoxy resins
H02B 13/045 - Details of casing, e.g. gas tightness
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 - Circuit arrangements for ac mains or ac distribution networks
G06Q 10/04 - Forecasting or optimisation specially adapted for administrative or management purposes, e.g. linear programming or "cutting stock problem"
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 - Backpropagation, e.g. using gradient descent
G06Q 10/04 - Forecasting or optimisation specially adapted for administrative or management purposes, e.g. linear programming or "cutting stock problem"
38.
STATIC CONTACT UNIT, CONTACT SYSTEM AND TAP CHANGER
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 - Details of switching devices, not covered by groups
H01F 29/04 - Variable transformers or inductances not covered by group with tappings on coil or windingVariable transformers or inductances not covered by group with provision for rearrangement or interconnection of windings having provision for tap-changing without interrupting the load current
H01H 1/56 - Contact arrangements for providing make-before-break operation, e.g. for on-load tap-changing
39.
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 - Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the networkCircuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
H02J 3/28 - Arrangements for balancing the load in a network by storage of energy
47.
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 - Arrangements for image or video recognition or understanding using pattern recognition or machine learning using classification, e.g. of video objects
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 - Complex mathematical operations for solving equations
H02J 3/00 - Circuit arrangements for ac mains or ac distribution networks
G06Q 10/04 - Forecasting or optimisation specially adapted for administrative or management purposes, e.g. linear programming or "cutting stock problem"
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.
Submodule (10) for a converter system (100) comprising a first connecting terminal (11), a second connecting terminal (12), a switching circuit (20) with a first power semiconductor switch (21) and a second power semiconductor switch (22), which are connected in series and can be turned on and off. The first connecting terminal (11) is connected to the node between the first power semiconductor switch (21) and the second power semiconductor switch (22). The submodule (10) further comprises an energy storage circuit (30) connected in parallel with the switching circuit (20): The energy storage circuit (30) comprises a first capacitor (31) with a first capacitance (311), a split inductor (32), which is connected in series with the first capacitor (31) and adapted for limiting current amplitudes and a second capacitor (41) with a second capacitance (411) acting as part of a commutating system (40), wherein the second capacitor (41) is arranged in parallel to the switching circuit (20) and in parallel to the first capacitor (31) and the split inductor (32). The submodule (10) further comprising a first crowbar (50), which is connected in parallel with the first capacitor (31) and which is adapted to dissipate energy from the first capacitor (31), comprising a first bypass thyristor (51).
The present disclosure relates to a method for operating a hybrid electrolyzer plant, an electrolyzer plant, a computer-readable storage medium and a computer program product. The method for operating an electrolyzer plant comprises acquiring an electricity price forecast in a pre-determined period, at least respective one ancillary service price forecast in the pre-determined period for at least one of the plurality of predefined ancillary services, and technical operational constraints of the electrolyzer; and determining a hydrogen production of the electrolyzer and an ancillary service offer in the pre-determined period, at least based on a hydrogen production cost in the pre-determined period, an ancillary service profit, and the technical operational constraints of the electrolyzer, wherein the ancillary service offer includes at least one ancillary service to be provided to the electrical grid.
G06Q 10/04 - Forecasting or optimisation specially adapted for administrative or management purposes, e.g. linear programming or "cutting stock problem"
G06Q 50/00 - Information and communication technology [ICT] specially adapted for implementation of business processes of specific business sectors, e.g. utilities or tourism
Embodiments of the present disclosure provide a control system (100) for controlling unit of a power system (1000). The control system (100) comprises at least two control channels (102) of a plurality of control channels with different control targets. Each control channel (102) of the at least two control channels (102) is configured to perform one or more control operations for controlling the unit of the power system (1000). Further, each of the said at least two control channels (102) is configured to perform at least one control operation as a response to a respective input signal received from the power system (1000). Each of the at least two control channels (102) is connected to a merged control output to the unit of the power system (1000) through a shared integrator (104).
A transformer arrangement is disclosed. The transformer arrangement comprises a transformer tank, electrical power transformer components arranged inside the transformer tank, and at least one sealing element arranged to prevent leakage of a liquid into or out of a component (5) provided inside the transformer tank (2), or to prevent leakage of the liquid out of the transformer tank. The sealing element (3, 4) arranged to prevent leakage comprises Boron Nitride.
The present invention relates to winding (10) of a dry-type transformer (80) configured to be arranged to surround a core (82) of the transformer (80). The winding (10) includes a first winding portion (16A), a second winding portion (16B), and at least one third winding portion (16C) which each include an electrically conductive material. The winding includes a first gap (20A) which is arranged between the first winding portion (16A) and the second winding portion (16B) and which is filled with electrically insulating material (22), at least a second gap (20B) which is arranged between the second winding portion (16B) and the third winding portion (16C) and which is filled with electrically insulating material (22), and a plurality of cooling channels (24) configured to guide a cooling medium therethrough to transfer heat from the transformer (80) to the cooling medium. The plurality of cooling channels (24) include a first cooling channel (24A) arranged within the first gap (20A) and a second cooling channel (24B) arranged within the second gap (20B). The first cooling channel (24A) and the second cooling channel (24B) each include a medium inlet (28) for introducing the cooling medium into the respective cooling channel (24) and a cooling medium outlet (30) for allowing the cooling medium to exit from the respective cooling channel (24). The cooling medium inlets (28) and the cooling medium outlets (30) are arranged in a side wall (34) of the transformer (80) and/or a side wall (34) of the winding (10). The present invention further relates to a transformer (80), a method of manufacturing a winding (10) of a transformer (80), and a method of operating a transformer (80).
The invention relates to a method to monitor a surge arrestor (204) with a metal oxide varistor element and coupled to an electrical grid (300), the method performed at least partially on a traction vehicle (200) comprising a catenary network contact (202) coupled to the electrical grid (300) and the surge arrestor (204) coupled to the catenary network contact (202), the method comprising the steps of measuring (110) on the metal oxide varistor element a physical parameter (X) by means of a measurement device (12), the physical parameter (X) including at least one of temperature, current and voltage, and in the case the surge arrestor (204) blocks a surge from the electrical grid (300) and/or the physical parameter (X) exceeds a threshold value, recording (120) the physical parameter (X), a position (L) of the surge arrestor (204) and a timestamp and providing a tripping dataset (D) based on the recording (120) by means of a recording device (14).
The invention relates to a unit cell (10) of a multi-trench semiconductor device, wherein the unit cell (10) is configured as vertical field effect transistor cell having a carrier transport axis (14) defined between drain and source, wherein in a direction of a gate contact stripe axis (24) being perpendicular to the carrier transport axis (14), the unit cell (10) comprises on two opposite edges each a gate-recess (26) extending vertically through the n+source region (20) and the p-well region (18), wherein along a fin elongation axis (30) the unit cell (10) comprises on two opposite edges each at least one source-recess (32) extending vertically through the n+source region (20), wherein the vertical depth of the source-recess (32) is different to the vertical depth of the gate-recess (26), and wherein a bottom of the sourcerecess (32) is formed by the p-source region (22) of the source structure. Furthermore, the invention relates to a multi-trench semiconductor device, comprising multiple of the above unit cells (10). Furthermore, the invention relates to a method for producing the above multi-trench semiconductor device.
H01L 29/06 - Semiconductor bodies characterised by the shapes, relative sizes, or dispositions of the semiconductor regions
H01L 29/08 - Semiconductor bodies characterised by the shapes, relative sizes, or dispositions of the semiconductor regions with semiconductor regions connected to an electrode carrying current to be rectified, amplified, or switched and such electrode being part of a semiconductor device which comprises three or more electrodes
H01L 29/10 - Semiconductor bodies characterised by the shapes, relative sizes, or dispositions of the semiconductor regions with semiconductor regions connected to an electrode not carrying current to be rectified, amplified, or switched and such electrode being part of a semiconductor device which comprises three or more electrodes
H01L 29/417 - Electrodes characterised by their shape, relative sizes or dispositions carrying the current to be rectified, amplified or switched
H01L 29/78 - Field-effect transistors with field effect produced by an insulated gate
H01L 21/336 - Field-effect transistors with an insulated gate
There is disclosed herein a method for monitoring a power line, a device for performing the method, and a power transmission system comprising such a device The method comprises obtaining a signal from the power line, comprising real-time information corresponding to the current and/or voltage on the power line at a monitoring location, decomposing the signal into one or more frequency bands, and monitoring each frequency band for an indication of a fault on the power line. According to such a method, fast transients arising from faults on the power can be rapidly identified, as part of a fault response trigger and the fault location can be determined without compromising accuracy of fault location, while allowing for a low usage of computational memory and/or processing.
The present invention provides a method and device for determining an internal fault in a three phase transmission line. The method comprises the steps of obtaining phase voltage signals for a reach point on the three-phase transmission line, determining reach point sequence voltages from the phase voltage signals, determining modified reach point sequence voltages by delaying one of the phase voltage signals at the reach point, obtaining an operation quantity and a restrain quantity using the modified reach point voltages, and determining an internal symmetrical fault in the three-phase transmission line based on a comparison of the operation quantity and the restrain quantity.
H02H 3/40 - Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection responsive to ratio of voltage and current
60.
DISTANCE PROTECTION FOR SYMMETRICAL THREE PHASE FAULT DETECTIONS
The present invention provides a method and device for determining a symmetrical fault in a three-phase transmission line. The method comprises the steps of obtaining a real time current signal and a real time voltage signal at relay location of one end of the transmission line for each of measured phase loops, determining a reach point voltage signal and a relay point voltage signal based on the real time current signal and the real time voltage signal for each of measured phase loops, determining an operation signal and a restrain signal for each of measured phase loops, determining whether the operation signal exceeds the restrain signal for a measured phase loop, determining whether the relay point phase voltage of the measured phase loop exceeds the reach point phase voltage, and detecting a fault if it is determined that the operation signal exceeds the restrain signal and the relay point phase voltage exceeds the reach point phase voltage.
H02H 3/40 - Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection responsive to ratio of voltage and current
61.
UNIT CELL OF A MULTI-TRENCH SEMICONDUCTOR DEVICE AND SEMICONDUCTOR DEVICE
The invention relates to a unit cell (10) of a multi-trench semiconductor device, wherein the unit cell (10) is configured as vertical field effect transistor cell having a carrier transport axis (14) defined between drain and source, wherein in a direction of a gate contact stripe axis (24) being perpendicular to the carrier transport axis (14), the unit cell (10) comprises on two opposite edges each a gate-recess (26) extending vertically through an n+source region (20) and a p-well region (18) into a body layer (16), such that when multiple unit cells (10) are arranged in a row along the gate contact stripe axis (24) next two each other for forming the multi-trench semiconductor device a gate trench is formed by two gaterecesses (26) of two neighbouring unit cells (10), and wherein the unit cell (10) comprises in addition a protective p+layer (32), the protective p+layer (32) being continuous in the direction of the gate contact stripe axis (24) and being arranged in the body layer (16) below the gate-recess (26). Furthermore, the invention relates to a multi-trench semiconductor device, comprising multiple of the above unit cells (10). Furthermore, the invention relates to a method for producing the above multi-trench semiconductor device.
H01L 29/06 - Semiconductor bodies characterised by the shapes, relative sizes, or dispositions of the semiconductor regions
H01L 29/78 - Field-effect transistors with field effect produced by an insulated gate
H01L 21/336 - Field-effect transistors with an insulated gate
62.
CURRENT LIMITING FUSE ASSEMBLY, TRANSFORMER ASSEMBLY COMPRISING A CURRENT LIMITING FUSE ASSEMBLY, AND SHIELDING ARRANGEMENT CONFIGURED TO ELECTRICALLY AND MECHANICALLY SHIELD A CURRENT LIMITING FUSE
The invention relates to a current limiting fuse assembly which comprises a current limiting fuse (2) having a longitudinal axis (A), and a shielding arrangement (4) configured to electrically and mechanically shield the current limiting fuse (2). The shielding arrangement comprises a first part (6) and a second part (8). The first part (6) comprises a cylindrical portion (60) extending along a first axis (A1) between a first end (62) and a second end (64), and a flange portion (66) provided at the second end (64). The second part (8) comprises a cylindrical portion (80) extending along a second axis (A2) between a first end (82) and a second end (84), and a flange portion (86) provided at the second end (84). The second part (8) is positioned and oriented relative to the first part (6) such that the second end (84) of the second part (8) faces the second end (64) of the first part (6). The second end (84) of the second part (8) is arranged at a distance (L), measured along the longitudinal axis (A), from the second end (64) of the first part (6). The invention further relates to a transformer assembly having a corresponding current limiting fuse assembly and to a corresponding shielding arrangement.
H01H 85/00 - Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
H01H 85/02 - Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive Details
H01F 27/40 - Structural association with built-in electric component, e.g. fuse
63.
CONNECTOR DEVICE, METHOD FOR CONTROLLING A POWER FLOW TO A DC LOAD WITH A CONNECTOR DEVICE
A connector device (1) is specified configured to connect an alternating current, AC, power grid (2) to a direct current, DC, load (3), comprising - a multi-winding transformer (4) configured to be connected to the AC power grid (2), - a series voltage injection transformer (8) connected to the multi -winding transformer (4), - an AC/AC converter (13) connected to the series voltage injection transformer (8), and - a rectifier (17) connected to the series voltage injection transformer (8) configured to be connected to the DC load (3). Furthermore, a method for controlling a power flow is specified.
H02M 7/06 - Conversion of AC power input into DC power output without possibility of reversal by static converters using discharge tubes without control electrode or semiconductor devices without control electrode
H02M 5/45 - Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into DC by static converters using discharge tubes or semiconductor devices to convert the intermediate DC into AC using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only
H02M 5/458 - Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into DC by static converters using discharge tubes or semiconductor devices to convert the intermediate DC into AC using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
H02M 7/162 - Conversion of AC power input into DC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only in a bridge configuration
H02M 1/12 - Arrangements for reducing harmonics from AC input or output
H02M 5/14 - Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into DC by static converters using transformers for conversion between circuits of different phase number
H02M 7/17 - Conversion of AC power input into DC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only arranged for operation in parallel
H02J 3/01 - Arrangements for reducing harmonics or ripples
64.
PHASE SELECTION BASED ON REACH POINT VOLTAGE CALCULATION FOR LINE DISTANCE PROTECTION
The present disclosure relates to a method for determining a fault type of a fault on a transmission line, wherein the transmission line is comprised in an electrical system, the method comprising: obtaining a sequence voltage and/or current determined for a first location on the transmission line and a further at least one voltage and/or current determined for the first location on the transmission line; and determining the fault type of the fault on the transmission line by evaluating a plurality of criteria involving the sequence voltage and/or current and the further at least one voltage and/or current.
H02H 3/40 - Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection responsive to ratio of voltage and current
H02H 7/26 - Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occurred
The present invention provides a method and device for determining a symmetrical fault in a three-phase transmission line. The method comprises the steps of obtaining a real time current signal and a real time voltage signal at relay location of one end of the transmission line for each of measured phase loops, determining a reach point voltage signal phasor and a relay point voltage signal phasor based on the real time current signal and the real time voltage signal for each of measured phase loops, determining an operation signal and a restrain signal for each of measured phase loops, determining whether the operation signal exceeds the restrain signal for a measured phase loop, and detecting a fault if it is determined that the operation signal exceeds the restrain signal or the cosine of an angle difference between the relay location phasor and the reach point of voltage phasor is below zero.
H02H 3/40 - Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection responsive to ratio of voltage and current
An on-load tap changer OLTC comprising a housing, with a housing body and an upper body attached to the housing body (2) is provided. At least a portion of the upper body is provided with a surface inclined in relation to a first axis (Z) and oriented such that water flowing along the inclined surface by the force of gravity overflows an edge portion of the inclined surface or is directed to a drain system of the OLTC. The OLTC further comprises a flange (4) extending around substantially the whole periphery of the upper portion 3 and having apertures (11) for bolts distributed around the peripheral; - connection details (8) positioned between the periphery of the top portion (5) and the flange (4) and facing a substantially radial direction in relation to said first axis Z.
The invention provides an energy storage unit comprising: a plurality of energy storage subunits connected in series; and at least one converter connected on a first side to one or more of the plurality of energy storage sub-units and connected on a second side to a bus; wherein the bus extends in a first direction and the plurality of energy storage sub-units are arranged in alternating polarity orientation in a second direction different to the first direction.
The invention relates to a method to seal a section (110) of a gas-insulated electrical application (100), e.g. the application (100) configured as a gas-insulated switchgear or a gas-insulated line, particularly in order to enhance the lifetime of the application (100), the method comprising the steps of surface treatment (30) of at least an outer face (122) of the section (110), applying (40) an adhesive (2) to the outer face (122), arranging (50) on the outer face (122) a flexible flat material (4), and curing (60) the adhesive (2). The invention furthermore relates to a kit (1) and to a gas-insulated electrical application (100).
H02B 3/00 - Apparatus specially adapted for the manufacture, assembly, or maintenance of boards or switchgear
H02B 13/045 - Details of casing, e.g. gas tightness
F16L 55/175 - Devices for covering leaks in pipes or hoses, e.g. hose-menders from outside the pipe by using materials which fill a space around the pipe before hardening
F16L 23/16 - Flanged joints characterised by the sealing means
69.
ACTIVE BALANCING OF ENERGY STORAGE PREFERABLY AT MODULE AND RACK LEVEL
The invention provides an energy storage unit comprising: a plurality of energy storage sub- units connected in series; and one or more transformers, wherein each of the plurality of energy storage sub-units is also connected together in parallel via the one or more transformers; wherein the one or more transformers comprise a core with a plurality of windings wound around the core.
A power converter, a method for controlling a power converter, a controller for a power converter, a computer-readable storage medium and a computer program product are provided. The method comprises: obtaining a first signal set; performing a first signal transformation to generate a first intermediate signal, comprising: generating a second signal set based on the first signal set; performing a Clarke transformation on the first signal set and the second signal set to generate a first transformed set and a second transformed set; extracting positive-sequence components and negative-sequence components; performing a first Park transformation on the positive-sequence components to generate positive-sequence components, and performing a second Park transformation on the negative-sequence components to generate negative-sequence components; and performing the first Park transformation on the first zero-sequence component and the second zero-sequence component to generate zero-sequence components; and controlling the power converter according to the first intermediate signal.
H02M 7/5387 - Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a bridge configuration
H02M 7/5395 - Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters with automatic control of output wave form or frequency by pulse-width modulation
H02H 7/16 - Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for capacitors
H02H 7/18 - Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for batteriesEmergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for accumulators
H02H 9/04 - Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
72.
SEMICONDUCTOR DEVICE WITH AN INTEGRATED HETEROJUNCTION DIODE AND METHOD FOR MANUFACTURING
The invention relates to a semiconductor device (10) with an integrated heterojunc- tion diode (12) comprising: - a substrate (14) of a first conductive type acting as drain region, - a first crystalline layer (16) of a second conductivity type formed on the sub- strate (14) and acting as drift region, and - a source structure (18) provided on the first crystalline layer (16), the source structure (18) comprising a p-well region (20), an n+source region (22), and a p+short region (24), wherein a recess (26) comprising a bottom crystalline layer (28) is formed in the source structure (18), the recess (26) extending vertically through the p+short region (24) such that for forming the integrated heterojunction diode (12) the bottom crys- talline layer (28) of the recess (26) is in contact with a) the first crystalline layer (16), or b) an additional semiconductor layer (42) being formed on the first crystalline layer (16), and wherein the additional semiconductor layer (42) is of the same conductivity type as the first crystalline layer (16). Furthermore, the invention relates to a method for manufacturing the above semi- conductor device (10).
H01L 29/04 - Semiconductor bodies characterised by their crystalline structure, e.g. polycrystalline, cubic or particular orientation of crystalline planes
H01L 29/16 - Semiconductor bodies characterised by the materials of which they are formed including, apart from doping materials or other impurities, only elements of Group IV of the Periodic System in uncombined form
H01L 29/417 - Electrodes characterised by their shape, relative sizes or dispositions carrying the current to be rectified, amplified or switched
H01L 29/78 - Field-effect transistors with field effect produced by an insulated gate
H01L 29/10 - Semiconductor bodies characterised by the shapes, relative sizes, or dispositions of the semiconductor regions with semiconductor regions connected to an electrode not carrying current to be rectified, amplified, or switched and such electrode being part of a semiconductor device which comprises three or more electrodes
Energy storage system (1) and method for operating a protection circuit (3, 3n, 4) in an energy storage system (1). An energy storage system (1) comprising a plurality of energy storage units (2, 2n) and comprising one or more protection circuits (3, 3n, 4) enabling bypassing one or more of the energy storage units (2, 2n), wherein at least one of the protection circuits (3, 3n, 4) comprises a first switch (S1, Sn1, Sa) and a first resistor (R1, Rn1, Ra) electrically connected in series and comprises a second switch (S2, Sn2, Sb) electrically connected in series with the first switch (S1, Sn1, Sa) and electrically connected in parallel with the first resistor (R1, Rn1, Ra).
H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
H02H 7/18 - Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for batteriesEmergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for accumulators
74.
TRANSFORMER SPACER, MANUFACTURING METHOD AND TRANSFORMER
In at least one embodiment, the spacer (1) is for a high-voltage transformer (10) and comprises a first material (41) which is a polymer. The spacer (1) is, for example, of sheet-shape, and comprises a first region (21) and a second region (22), the first region (21) has a higher modulus of elasticity than the second region (22).
In at least one embodiment, the voltage transformer (1) comprises: - an input series and output parallel, ISOP, connec tion (21) of input series and output series, ISOS, modules (32) and/or an ISOS connection (22) of ISOP modules (31), and - control means (4), wherein - at least one of the ISOP modules (31) or the ISOS modules (32) comprises a plurality of solid-state transform ers, SSTs (33), and - the control means (4) are configured to perform a balancing control of intermediate voltages between individual ones of the SSTs (33) in the ISOS modules (32) of the ISOP connection (21) and/or between individual ones of the ISOP mod ules (31) in the ISOS connection (22).
H02M 3/335 - Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
H02M 3/28 - Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC
76.
METHOD AND SYSTEM FOR CAPACITOR LOSS MONITORING FROM LOAD SIGNALS
Method performed by a system (10) adapted to measure a condition of one or more capacitors. The system (10) monitors the one or more capacitors to collect load signals. The system (10) further performs a high precision spectral analysis of the load signals to extract phase vector components from the load signals. The system (10) further detects a change in capacitance and/or loss factor based on the extracted phase vector components.
The invention relates to a method for manufacturing a semiconductor device (20, 32), comprising the steps of - providing a structure (10) comprising a wide-bandgap semiconductor layer (12) having a top surface (14) and an insulating layer (16) formed on the top surface (14) of the wide-bandgap semiconductor layer (12), and - treating the insulating layer (16) of the structure (10) by plasma-immersion ion implantation or by ion implantation for the implementation of oxygen ions (22) into the insulating layer (16). Furthermore, the invention relates to a semiconductor device (20, 32) obtained by the above method. Additionally, the invention relates to a semiconductor device (20, 32) having a structure (10) comprising a wide-bandgap semiconductor layer (12) having a top surface (14) and an insulating layer (16) formed on the top surface (14) of the wide-bandgap semiconductor layer (12), wherein the insulating layer (16) is silicon dioxide layer or a metal oxide layer and wherein the insulating layer (16) comprises oxygen vacancies in the oxidation state +II and further comprises oxygen vacancies in the oxidation state -II.
H01L 29/16 - Semiconductor bodies characterised by the materials of which they are formed including, apart from doping materials or other impurities, only elements of Group IV of the Periodic System in uncombined form
H01L 29/20 - Semiconductor bodies characterised by the materials of which they are formed including, apart from doping materials or other impurities, only AIIIBV compounds
H01L 29/22 - Semiconductor bodies characterised by the materials of which they are formed including, apart from doping materials or other impurities, only AIIBVI compounds
78.
AUTOMATIC ANALYSIS OF PHASE ROTATION AND PHASE RELATIONSHIPS
Systems and methods described herein allow for correct processing and interpretation of input and feedback signals in the operation and controlled switching of high-voltage circuit breakers. In various examples, this is accomplished by automated real-time monitoring, analysis, and corrective action. Advantageously, such intelligent diagnostics increase the reliability and efficiency of critical components in high-voltage electrical systems, thereby protecting against premature wear and tear, electrical failure, or physical damage.
H02H 11/00 - Emergency protective circuit arrangements for preventing the switching-on in case an undesired electric working condition might result
H02H 7/09 - Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors against over-voltageEmergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors against reduction of voltageEmergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors against phase interruption
G01R 29/16 - Measuring asymmetry of polyphase networks
The present disclosure relates to a method for generating a synthetic dataset of a power equipment. The method comprises (1a.) obtaining a dataset of the power equipment having a plurality of data points, (1b.) generating an initial synthetic value for a data point in the dataset obtained in (1a, 1c.) determining whether the initial synthetic value satisfies at least one predetermined constraint, (1d.) determining that the initial synthetic value is a final synthetic value when it is determined that the initial synthetic value satisfies the at least one predetermined constraint, or (1e.) discarding the initial synthetic value and generating a new synthetic value when it is determined that the initial synthetic value does not satisfy the at least one predetermined constraint. Steps (1c.) to (1e.) are repeated using the new synthetic value generated in step (1e.) until the new synthetic value satisfies the at least one predetermined constraint and is determined to be a final synthetic value. The method further comprises step (1f.) performing steps (1b.) to (1e.) for all subsequent data points of the dataset, and step (1g.) outputting a generated synthetic dataset comprising the final synthetic values.
G06F 30/27 - Design optimisation, verification or simulation using machine learning, e.g. artificial intelligence, neural networks, support vector machines [SVM] or training a model
G05B 17/02 - Systems involving the use of models or simulators of said systems electric
80.
MAINTENANCE SYSTEM AND METHOD FOR IMPROVING THE RELIABILITY AND/OR AVAILABILITY OF A POWER CONVERTER STATION
A control system for a hydrogen production system is proposed. The hydrogen production system includes a plurality of electrolyzers and a plurality of converter modules each of which is coupled to one or more of the plurality of electrolyzers. The control system includes: a plurality of local controllers each of which is coupled with one or more of the plurality of converter modules and one more of the plurality of the electrolyzers; and a system controller in communication with the plurality of local controllers. The system controller is configured to receive an external dispatch value and electrolyzer state information regarding states of the plurality of electrolyzers, and to determine internal dispatch values for one or more electrolyzer from the plurality of electrolyzers based on the external dispatch value and the electrolyzer state information. A least one local controller from the plurality of local controllers associated with the one or more electrolyzers is configured to receive the internal dispatch values from the system controller, and to control operations of the one or more electrolyzers according to the internal dispatch values.
System (1) for drying of dielectric products (99) comprising: a first array (10) of first electrodes (100), wherein the first array (10) is arranged along a first plane (P1), which extends along a first direction (L1) and a second direction (L2), a second array (20) of second electrodes (200), wherein the second array (20) is arranged along a second plane (P2), which extends along the first direction (L1) and the second direction (L2), and wherein the first plane (P1) is spaced apart from the second plane (P2) along a third direction (L3), and wherein each of the first electrodes (100) is spaced apart from its corresponding second electrode (200) along the third direction (L3), forming a plurality of pairs (300) of the first electrode (100) and the second electrode (200). The system (1) further comprises a plurality of radio-frequency generators (30) adapted to produce radio frequency signals of specific and adjustable amplitude and preselected frequency, wherein each of the plurality of radio-frequency generators (30) is electrically coupled to one pair (300) of the first electrode (100) and the second electrode (200).
F26B 3/34 - Drying solid materials or objects by processes involving the application of heat by development of heat within the materials or objects to be dried by using electrical effects
Embodiments herein provide a monitoring module (100) and method for generating a signal indicative of performance degradation of a capacitor (105) in an HVDC power converter (107). The method comprises sampling input load signals of the capacitor using a measurement circuit (101). The method further comprises calculating a capacitance value of the capacitor using small signal analysis in the frequency domain using a frequency domain unit (102) and the measured input load signals. The method further comprises calculating a power loss factor of the capacitor using small signal analysis in the time domain on the measured input load signals using a time domain unit (103). The method further comprises generating a signal indicative of performance degradation of the capacitor based on the calculated capacitance value and the calculated power loss factor using a warning unit (104).
Embodiments of the present disclosure provide a system (2000) and method (300) for providing selection of communication channel (202, 204, 206) between at least two end points (208, 210) through service bus (212). The system (2000) comprises at least one first end point (208) and second end point (210) arranged to share data with one or more devices (100, 200). The service bus (212) arranged for sharing data between first endpoint (208) and second endpoint (210) via at least one of first communicating channel (202), second communication channel (204) or third communication channel (206) according to the determination of at least one of: occurrence or non-occurrence of first channel selection condition or occurrence or non-occurrence of the second channel selection condition in case of the occurrence of the first channel selection condition.
A dielectric heating method for moisture extraction from an active part (10) of a transformer (1) is provided. The method comprises a step of configuring a system including at least one an apparatus (2) configured to generate electric fields alternating at radio frequencies, wherein the electric fields penetrate at least part of regions between freely selectable electrodes (3). The method further comprises a step of operating the at least one apparatus (2) for drying at least one moist region (7) of the active part (10) of the transformer (1), wherein the at least one moist region (7) is located at least partially between the freely selectable electrodes ( 3 ), so that the at least one moist region (7) is exposed to the generated alternating electric fields, resulting in heat generation within the at least one moist region ( 7 ).
A method for producing a light-weight construction material (1) comprising the following steps: - providing a power product component (2), wherein the power product component (2) comprises at least a polymer (3) and aluminum (4), - pulverizing the power product component (2) to form particles (5), and - mixing the particles (5) with at least the following compounds to obtain a light-weight construction material (1) : cement (6), lime (7) and water ( 8 ). Further, a light-weight construction material (1) is specified.
C04B 28/02 - Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
C04B 28/10 - Lime cements or magnesium oxide cements
C04B 38/02 - Porous mortars, concrete, artificial stone or ceramic warePreparation thereof by adding chemical blowing agents
87.
METHOD, DEVICE AND COMPUTER-READABLE MEDIUM FOR SYNCHRONISING DATA OF A POWER TRANSMISSION LINE
The disclosure relates to a method for synchronising data of a power transmission line. The method comprises obtaining voltage measurements and current measurements from a local end and a remote end of the power transmission line; obtaining voltage and current phasors of the local end and the remote end using the voltage and current measurements; determining, whether synchronisation of the voltage and current measurements has been lost and determining a synchronisation angle based on the determination of whether synchronisation of the voltage and current measurements has been lost; and synchronising the voltage and current measurements using the synchronisation angle. Furthermore, a corresponding device and computer-readable storage medium are provided.
H02J 13/00 - Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the networkCircuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
G01R 19/25 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof using digital measurement techniques
G08C 19/02 - Electric signal transmission systems in which the signal transmitted is magnitude of current or voltage
G08C 19/12 - Electric signal transmission systems in which the signal transmitted is frequency or phase of AC
G01R 25/02 - Arrangements for measuring phase angle between a voltage and a current or between voltages or currents in circuits having distributed constants
The present disclosure relates to a method for grouping disturbance records, DRs, in a power grid. The method comprises obtaining a plurality of DRs, obtaining waveforms of the plurality of DRs, inputting the waveforms into an artificial intelligence, AI, model to extract a plurality of features, and grouping the DRs into at least a first group or a second group based on the extracted features.
H02J 3/00 - Circuit arrangements for ac mains or ac distribution networks
H02J 13/00 - Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the networkCircuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
G01R 19/25 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof using digital measurement techniques
The present application relates to a cell (12) for arrangement in an arm of series connected and/or series- and parallel connected cells of an energy storage system (ESS), wherein said cell comprises: a bypass switch (BPS) arranged between a first cell connection terminal (CC1) and a second cell connection terminal (CC2); a string of energy storage modules comprising a first energy storage module (ESM1) and at least a second energy storage module (ESM2, ESM3) connected in series, wherein the first energy storage module (ESM1) is arranged in a first energy storage module position (esp1) and the at least second energy storage module (ESM2, ESM3) is arranged in a corresponding at least second energy storage module position (esp2, esp3), a decoupling capacitor (Cd) arranged in parallel with the string of energy storage modules; and one or more protection switches (PSW1, PSW2, PSW3, PSW4) operable to disconnect at least one energy storage module (ESM1). The present application also relates to a method of controlling such a cell (12), a control unit (13), and an energy storage system (ESS) comprising one or more such cells (12).
When supporting ancillary services for a target power system, existing solutions consider a fixed capacity of the battery energy storage system. In contrast, disclosed embodiments leverage a forecast of ancillary events, in combination with an optimization model, to produce an optimal determination for ancillary services. In particular, required capacity may be calculated from the forecast of ancillary events, and a capacity constraint may be generated from the required capacity and incorporated into the optimization model. Then, the optimization model may be solved to produce an optimal determination for ancillary services.
G06Q 10/04 - Forecasting or optimisation specially adapted for administrative or management purposes, e.g. linear programming or "cutting stock problem"
G06Q 10/0631 - Resource planning, allocation, distributing or scheduling for enterprises or organisations
A power supply system for an electrolyzer module is provided. The electrolyzer module includes a plurality of electrolyzers, a first electrolyzer and a second electrolyzer from the plurality of electrolyzers being coupled in series. The power supply system inlcudes a DC/DC converter (1) comprising a first switch coupled with the first electrolyzer and a second switch coupled with the second electrolyzer, the first switch and the second switch being configurable to be independently operated to obtain individual control of powering of the first and the second electrolyzers, and a controller (2) configured to receive a differential measurement value indicating a difference in performances of the first and second electrolyzers and to control operation of at least one of the first and second electrolyzers by controlling switching of at least one of the first and second switches based on the differential measurement value.
A transformer comprises: - a core (101), - a winding (102, 103) wound around a winding axis (105) extending along the core (101), - an eddy losses reducer (200), the eddy losses reducer (100) comprising a ring segment shape, being arranged at an axial end (106) of the winding (102, 103) and comprising a non-ferromagnetic main body (201) and a ferro-magnetic layer (202) surrounding the main body (201).
H01F 27/34 - Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
H01F 27/36 - Electric or magnetic shields or screens
93.
METHOD, COMPUTER-READABLE MEDIUM FOR LINE-DIFFERENTIAL PROTECTION ON A POWER TRANSMISSION LINE
The disclosure relates to a method for line-differential protection on a power transmission line. The method comprises obtaining voltage measurements and current measurements from a local end and a remote end of the power transmission line, obtaining voltage and current phasors of the local end and the remote end using the voltage and current measurements, determining a synchronisation angle δ based on the obtained voltage and current phasors, wherein the synchronisation angle δ is determined based on a load correction constant µ, and performing line-differential protection on the power transmission line by synchronising unsynchronised voltage and current phasors based on the synchronisation angle δ.
G01R 31/08 - Locating faults in cables, transmission lines, or networks
H02H 3/30 - Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection responsive to difference between voltages or between currentsEmergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at two spaced portions of a single system, e.g. at opposite ends of one line, at input and output of apparatus using pilot wires or other signalling channel
An on-load tap changer (OLTC) (1) comprising a housing, said housing comprising a housing body (4) having open end portions (6, 7) closed by a respective cover assembly (2, 3) attached to the housing body (4) by adhesive between the housing body (4) and a respective flange of each respective cover assembly (6, 7).
The present application provides a winding assembly, a dry-type transformer and a method for manufacturing a winding assembly, and belongs to the technical field of transformers. The winding assembly comprises: a supporting cylinder, comprising: a cylinder body extending in a first direction, the cylinder body having an outer wall and an inner wall; and a first flange and a second flange, the first flange and the second flange being respectively arranged at a first end and a second end of the cylinder body that are opposite each other in the first direction; a coil, the coil being wound around the outer wall of the cylinder body in the first direction; and an encapsulating insulator, the encapsulating insulator encapsulating the supporting cylinder and the coil, such that the encapsulating insulator is filled between the coil and the outer wall of the cylinder body, between turns of the coil, between the coil and the first flange, between the coil and the second flange, and on an outer surface of the first flange and the inner wall of the cylinder body.
A coil block fixation system (30) for a transformer comprises a coil block body to be coupled to a coil (19) of the transformer, and a supporting plate that is coupled to an upper surface (23) of the coil block body (10) opposite a bottom surface (24) of the coil block body (10). The coil block fixation system (30) further comprises two or more rods (3) that are coupled to an upper surface (21) of the supporting plate (1) opposite a bottom surface (22) of the supporting plate (1) for setting a load to the supporting plate (1) towards the coil block body (10). The coil block fixation system (30) further comprises two or more spring elements (2) one of which is coupled to the associated rod (3) such that the load set to the supporting plate (1) is provided with a given flexibility with respect to a mounting direction from the coil block body (10) to the rods (3).
A coil block fixation system (30) for a transformer comprises a coil block body to be coupled to a coil (19) of the transformer, and a supporting plate that is coupled to an upper surface (23) of the coil block body (10) oppo site a bottom surface (24) of the coil block body (10). The coil block fixation system (30) further comprises two or more rods (3) that are coupled to an upper surface (21) of the supporting plate (1) opposite a bottom surface (22) of the supporting plate (1) for setting a load to the supporting plate (1) towards the coil block body (10). The supporting plate (1) and the coil block body (10) are formed geometrically in coordination with each other such that one comprise at least one recess (13, 14) and the other one comprise at least one protrusion (9, 16) that extends into the corresponding recess (13, 14) forming a respective movement limiter to counteract a translation and/or a rotation of the supporting plate (1) relative to the coil block body (10).
H01F 27/30 - Fastening or clamping coils, windings, or parts thereof togetherFastening or mounting coils or windings on core, casing, or other support
H01F 27/06 - Mounting, supporting, or suspending transformers, reactors, or choke coils
98.
COMPUTATION AND IMPLEMENTATION OF PREEMPTIVE RANKED RESILIENCY MEASURES USING PROBABILISTIC OPTIMIZATION FOR ENHANCED OPERATIONAL RESILIENCE OF A POWER SYSTEM
The present disclosure relates to a method comprising using at least one hardware processor to: acquire asset data associated with a plurality of power-delivery assets of a power network; acquire forecast data associated with at least one future event; generate input data based on the asset data and the forecast data.; and in advance of the at least one future event, input the input data to a probabilistic optimization model that optimizes at least one parameter of an operation of the power network for the at least one future event; for each of a plurality of resiliency measures, determine a measure of effectiveness of the resiliency measure, on the operation of the power network for the at least one future event, based on a solution to the probabilistic optimization model; output the measures of effectiveness for the plurality of resiliency measures to a network controller of the power network; and implement one of the resiliency measures according to the measure of effectiveness of the resiliency measures.
H02J 3/00 - Circuit arrangements for ac mains or ac distribution networks
H02J 3/38 - Arrangements for parallelly feeding a single network by two or more generators, converters or transformers
H02J 13/00 - Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the networkCircuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
99.
HYDROGEN PLANT, AND CONTROL SYSTEM AND CONTROL METHOD THEREOF
A control system (30) for a hydrogen plant (100) is provided. The hydrogen plant includes: a first set of units (11,12…1n) comprising at least one hydrogen electrolyzer for producing hydrogen as a main product and heat as a byproduct; and a second set of units (21,22…2n) comprising at least one desalination unit partially operated with the heat from the at least one hydrogen electrolyzer for producing distilled water from raw water, and the at least one water desalination unit being configured to provide at least part of the distilled water to the at least one hydrogen electrolyzer. The control system is configured to control operation of the hydrogen plant including controlling electrical energy consumption of the at least one electrolyzer and the at least one desalination unit by adjusting at least one of: 1) electrical power supplied to the at least one hydrogen electrolyzer to produce the hydrogen and the heat; 2) flowrate of the at least part of the distilled water to the at least one hydrogen electrolyzer from the at least one desalination unit; and 3) heat transferred from the at least one hydrogen electrolyzer to the at least one desalination unit.
To monitor an asset (12, 14, 16, 17) of an electric power system (10; 170; 180) are provided, an asset monitoring system (40, 51) is operative to convert asset images to grayscale images, to perform an asset state assessment based on the grayscale images, and generate output based on the asset state assessment.
patents
