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WO/2024/012744A1 |
The invention relates to activating an active discharge of a DC link capacitor. To this end, provision is made of a discharge device which can detect a condition for activating the discharge of a DC link capacitor independently of other ...
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WO/2024/013842A1 |
Provided is a shut-off device for a vehicle, the device being capable of operating so as to further draw out the durability performance of a switch.　The shut-off device (1) comprises a first switch (33A) that switches an electrical pow...
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WO/2024/007488A1 |
The present application relates to a flexible direct-current receiving end alternating-current fault ride-through method and system, a computer device, a storage medium, and a computer program product. The method comprises: when a receiv...
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WO/2024/009839A1 |
A power storage device 50 comprises: a cell 60; a relay 53 that interrupts current to the cell 60; a bypass circuit 120 that is connected in parallel to the relay 53; and a management device 150. The bypass circuit 120 includes two FETs ...
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WO/2024/008598A1 |
The invention relates to an electrical distribution system (1) configured to supply at least a first electric motor (M1) and a second electric motor (M2) from at least one electrical source (B1), the electrical distribution system (1) co...
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WO/2024/007679A1 |
The present application relates to the technical field of electronics, and relates to a key control circuit, method and apparatus, a device, a storage medium, and a remote controller. The key control circuit comprises a key module, a pow...
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WO/2023/246955A1 |
The present application provides an inter-turn protection method and system for a converter transformer. In the method and system, three-phase currents before and after initiating inter-turn protection are collected at a valve side and a...
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WO/2023/247107A1 |
The present disclosure relates to a start-up method for reducing inrush current to a transformer (3) when closing a switching device (2). The method comprises monitoring a voltage (U) in one of the phases. The method also comprises, for ...
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WO/2023/246169A1 |
Provided in the present invention is a fault clearing method for an alternating-current bus of an energy storage power station. The method comprises: when an alternating-current bus has a fault, a bus protection device controlling all no...
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WO/2023/249224A1 |
An electrical device according to an embodiment of the present disclosure controls operation of a power factor correction circuit by configuring an overvoltage protection level, a low voltage protection level, and an input current limit ...
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WO/2023/242553A1 |
A method of protecting a power transformer (101) in a power supply distribution grid (100) is described. The method comprises monitoring low frequency electrical signals in a circuit coupled to the power transformer (101) to provide a fi...
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WO/2023/241902A1 |
The invention relates to an electric machine for an aircraft, comprising a stator (1) comprising at least three phases (10) each comprising a winding (12), a control branch (11) and a neutral branch (13), the neutral branches (13) being ...
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WO/2023/244794A1 |
A fault managed power system (FMPS) and method therefor can limit the cumulative effects of repeated current pulses on the human body during a fault without changing the amplitudes of the current pulses. Upon detection of a fault, the fa...
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WO/2023/241199A1 |
A communication power supply circuit, a control method and apparatus, a storage medium, and an air conditioning device. The communication power supply circuit is used for an air conditioner which comprises an indoor unit and an outdoor u...
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WO/2023/238713A1 |
The present invention comprises: a fuse that has a busbar and that cuts the busbar in accordance with an ignition signal; a first current sensing unit that has a first resistance part and that senses a current flowing through the busbar;...
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WO/2023/238714A1 |
A DC short circuit protection device (1) comprises: a fuse (10) that includes a bus bar (12) and disconnects the bus bar in response to an ignition signal (S3); a first current detection unit (13a) that includes a first resistor unit (13...
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WO/2023/236451A1 |
A short-circuit protection system, and a traction battery system of an electric vehicle. The short-circuit protection system comprises: a current monitoring apparatus (110), a control module (12) and an open-circuit protection apparatus ...
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WO/2023/202078A9 |
An arc fault detection method and apparatus, and a device. The method comprises: acquiring a preset arc feature value, which is calculated on the basis of a collected direct current side signal of an inverter (S11); acquiring an initial ...
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WO/2023/232627A1 |
The invention relates to a circuit breaker tripping acceleration arrangement (24) designed for being positioned between a bidirectional voltage transformer (5, 6) of a current transformer device (1) and an energy store (20, 22) having at...
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WO/2023/231515A1 |
The present application relates to a digital power distribution network edge computing control apparatus and method. The apparatus comprises an edge-side multi-service collaborative software and hardware platform that is longitudinally p...
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WO/2023/228592A1 |
This battery disconnection system comprises: a main relay connected between a battery and a load; a serially-connected precharge relay and a precharge resistor that are connected in parallel with the main relay; a current sensor that mea...
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WO/2023/226316A1 |
Disclosed in the present invention are an adaptive distance protection method and system. The method comprises: extracting electrical quantity transient time domain information at a relay location; and determining a directional character...
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WO/2023/226997A1 |
Disclosed in the present invention are a high-precision current measurement method and a chip module therefor. The high-precision current measurement method comprises: with regard to at least two protection switches, providing sampling b...
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WO/2023/227250A1 |
A solid-state circuit breaker (10) for a DC system includes a switching module (110) having a first terminal detachably connectable to a DC power source (20) and a second terminal detachably connectable to a load (32). The switching modu...
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WO/2023/229258A1 |
A switching mode power supply is disclosed. The switching mode power supply comprises: a power input unit which receives input of an input alternating current (AC) voltage; a rectifying unit which rectifies the input AC voltage; a conden...
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WO/2023/223786A1 |
When a first semiconductor unit 7f is damaged in a manner associated with generation of a large amount of heat due to deterioration over time, the surface temperature of the damaged first semiconductor unit 7f rapidly rises. Heat generat...
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WO/2023/222183A1 |
The present disclosure relates to a high voltage bypass device (10), comprising a cavity (13), a trigger element arranged in the cavity (13), a reservoir (17) filled with a conductive, flowable material (18), and a shutter (19) separatin...
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WO/2023/222309A1 |
The present invention relates to a method for localizing a short circuit in a DC voltage system (100), wherein the DC voltage system has a DC voltage line (104) and at least two components (110, 120, 130, 140) which each have a capacitan...
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WO/2023/217508A1 |
The invention relates to a braking resistor comprising individual sheets, wherein: each individual sheet has mutually spaced first and second transverse slits located one behind the other in the longitudinal direction; the first transver...
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WO/2023/216518A1 |
Disclosed in the present application is a T-type three-level overload operating system. The T-type three-level overload operating system comprises a three-level topological circuit and an overload mode switching system, wherein a first d...
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WO/2023/216431A1 |
The present application relates to an energy storage apparatus. The energy storage apparatus comprises a control circuit, a plurality of battery clusters connected in parallel, and a switch circuit corresponding to each battery cluster, ...
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WO/2023/216501A1 |
Disclosed in embodiments of the present invention are a line protection method for a flexible grounding system of a power distribution network, and a related device. The method comprises: under the condition that a grounding fault occurs...
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WO/2023/218530A1 |
A power control system (10A) comprises: an energy storage system (21A); and a power converter (20) connected between an AC power line (15) and the energy storage system (21A). The energy storage system (21A) includes a plurality of power...
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WO/2023/213047A1 |
Disclosed in the present invention are a switch power source for isolated output on a single path among multiple paths, and an LLC switch circuit. The switch power source comprises a power factor correction circuit and an LLC switch circ...
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WO/2023/208603A1 |
The fuse circuit assembly (20) comprises a first supply path and a second supply path. The first supply path comprises a first supply-connection node (22), a first load-connection node (24) for connecting a safety-relevant load (26), a f...
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WO/2023/212452A1 |
In one embodiment, an apparatus includes a surge voltage blocker circuit to couple between a distribution grid network and a grid-side power converter of a power conversion system. The surge voltage blocker circuit may include a pluralit...
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WO/2023/207789A1 |
Provided in the embodiments of the present application are a power adapter, an over-current protection circuit, and an electronic device. A primary control chip in the power adapter is in isolation connection with a secondary protocol ch...
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WO/2023/207099A1 |
A method and system for identifying dominant overvoltage of a high-proportion new energy power system. The method comprises: respectively determining a new energy machine end voltage amplitude value and an alternating current bus voltage...
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WO/2023/208486A1 |
A method of detecting a fault in a protected line constituting at least a portion of a transmission line in a power transmission system, the transmission line having at least one phase. The method comprises: - determining a positive sequ...
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WO/2023/203129A1 |
The invention relates to an electrical distribution system comprising a connection input (12) coupled to an input electrical line (15), an electrical distribution line (18), a controlled circuit breaker (2) having an input terminal (21) ...
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WO/2023/202145A1 |
Embodiments of the present application disclose a short-circuit protection circuit. The circuit is configured to perform short-circuit protection on at least two PAs sharing the same power supply, and comprises: a first resistor, a secon...
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WO/2023/202128A1 |
Embodiments of the present application disclose an overcurrent protection circuit. An output end of a DC-DC converter is connected to one end of a current detection resistor; one end of a first switch is connected to an input end of a fi...
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WO/2023/201567A1 |
A method for wafer-level adjustment of protection circuits of electronic devices and a wafer for facilitating the same are provided. The method comprises: fabricating an adjustable terminal protection circuit for each of the electronic d...
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WO/2023/202018A1 |
The present invention provides a multi-mode power distribution terminal protection control apparatus and method based on an analog-to-digital array. The apparatus comprises a traditional protection policy module, a control policy module,...
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WO/2023/200328A1 |
The present invention relates to a system configured to power up electronic circuit breaker (3) apparatus wirelessly, wherein system comprising: an energy transmitter (1) circuit and a loop of embedded antenna (34c) for channelling RF en...
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WO/2023/199158A1 |
Provided is a power storage module that is capable of suppressing an accident even when a problem has occurred in an IC of a control circuit. This power storage module has a power storage device, a PTC element, an IC, a first external te...
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WO/2023/197594A1 |
The present application discloses an overvoltage protection driving circuit, a motor driving circuit, and a vehicle. The overvoltage protection driving circuit comprises a switch signal generation module, a first switch module, a second ...
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WO/2023/195153A1 |
An in-vehicle breaking current supply device (10) comprises: a transformer (20) that has a first winding (21) and a second winding (22); a switching unit (14); a capacitor (25); a discharge circuit (26); and a blocking unit (27). The swi...
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WO/2023/195814A1 |
A solenoid controller according to an embodiment of the present invention comprises: a switching unit for outputting a voltage input from a power supply unit to a solenoid; a first clamping element for connecting one end of the solenoid ...
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WO/2023/193832A2 |
The present invention belongs to the technical field of motors, and disclosed are a non-polarized power supply circuit for a direct-current brushless motor and a control method. The circuit comprises a microcontroller chip, a polarity de...
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