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WO/2023/150837A1 |
A method of fault location in an electrical power line system (PLS), the method including: receiving at least one observed signal caused by a real fault in the PLS, wherein the or each observed signal is measured at a real observation po...
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WO/2023/149032A1 |
This DC microgrid comprises: a first fuse in which a positive electrode wire of a bus, to which another DC microgrid is connected, is connected to a first terminal, and a positive electrode wire, to which a plurality of power converters ...
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WO/2023/145466A1 |
A discharge circuit (40) causes a smoothing capacitor, which smooths a DC voltage, to discharge via a plurality of resistive elements (41) mounted to a substrate (50). The discharge circuit comprises a series-connected body in which at l...
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WO/2023/145407A1 |
In a battery abnormality detecting system 1, a data acquiring unit 111 acquires voltage data and current data of each cell in a battery pack in which a plurality of cells are connected in series, or each parallel cell block of a battery ...
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WO/2023/145467A1 |
A discharge circuit (40) discharges a smoothing capacitor (31) for smoothing a DC voltage. The discharge circuit comprises resistance elements (41) connected to the smoothing capacitor in parallel, a transistor (42) connected to the resi...
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WO/2023/138113A1 |
The present invention provides a method and an apparatus for unit control, and a photovoltaic multi-unit air conditioning system. The method comprises: on a first predetermined cycle, detecting a temperature of an inverter module of a cu...
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WO/2023/134970A1 |
The invention relates to a high-voltage supply for drive motors of an electric vehicle, comprising a distribution box which receives high-voltage components and which comprises high-voltage connections (72.1 - 72.4) arranged thereon, sai...
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WO/2023/134533A1 |
Embodiments of the present application provide a protective circuit, comprising: a control module; a first loop, the first loop comprising a constant current source and a resistance value detection module; and a second loop, the second l...
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WO/2023/135292A1 |
There is provided an electrical device for transferring electric energy between the electrical device and an external electric circuit. The electrical device comprises a coupling device, a sensor, a control unit, and a computing device. ...
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WO/2023/134895A1 |
The invention relates to a brake adjuster (1) for a modular multilevel converter (5), having a resistor (3), a first switching group (21) and also a first connection point (11) and a second connection point (12). To improve the usability...
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WO/2023/136485A1 |
According to the present invention, a distribution board with wireless leakage and overheating alarm functions enabling an emergency situation to be handled by applying a non-contact energy harvesting leakage current and temperature moni...
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WO/2023/133041A1 |
Electrical connectors with integral fault detection are provided. The connectors are adapted to be coupled to AC multi-phase electrical cables, and can include a plurality of phase contacts, a detector, and an indicator. The phase contac...
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WO/2023/131036A1 |
The present application relates to a control device for a battery pack active fuse, comprising a battery management system and a shunt resistor. The battery management system comprises a continuously-powered short-circuit current detecti...
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WO/2023/124114A1 |
Disclosed in the present application are a self-energy-taking hybrid direct-current circuit breaker and an application method therefor. In the self-energy-taking hybrid direct-current circuit breaker, a breaking branch is connected to a ...
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WO/2023/123677A1 |
Provided are a control method and device of a power type energy storage apparatus and a regional power system. The power type energy storage apparatus is connected to an incoming line end of a second transformer by means of a first trans...
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WO/2023/123640A1 |
Disclosed in the present invention is a convenient and fast treatment method for an inter-phase short circuit of a three-phase electric power system. The method comprises: firstly, cutting off a fault current; then, constructing a detect...
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WO/2023/124502A1 |
An energy storage system and a control method for an energy storage system, for use in isolating a fault source to prevent a fault range from being expanded, thereby improving the safety of an energy storage system. The energy storage sy...
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WO/2023/128737A1 |
A junction temperature estimating device according to a first embodiment of the present invention comprises: a power loss calculation unit for calculating a power loss by receiving a voltage and a current of a switching element as inputs...
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WO/2023/129850A1 |
An overcurrent protection system for a mobile irrigation system. The overcurrent protection system includes a number of control panels each including a controller configured to generate a motor control signal for activating one of the mo...
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WO/2023/120198A1 |
A fuse unit 10 includes: a first terminal part 21 to be connected to a bus bar 70; a second terminal part 31 to be connected to an electrical wire 60; a fusing part 41 that connects the first terminal part 21 and the second terminal part...
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WO/2023/112656A1 |
In a power supply control device, an upstream switch and a downstream switch are arranged on the upstream side and the downstream side of a load, respectively, in the current path of electric current flowing through the load. One end of ...
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WO/2023/109006A1 |
A DC voltage measurement anomaly detection method for a VSC-HVDC system, comprising: obtaining the valve group voltage of a detection pole, collecting the voltage value of each voltage measurement point of the detection pole, performing ...
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WO/2023/109882A1 |
The present invention relates to a smart power meter, which comprises a core module, a first communication module and a second communication module. The core module locally communicates with a photovoltaic grid-connected inverter, the co...
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WO/2023/114837A1 |
Power tools that include a housing, a motor supported by the housing, a battery pack interface configured to receive a battery pack that includes a plurality of battery cells, an inverter positioned between and electrically connected to ...
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WO/2023/110286A1 |
The invention relates, inter alia, to a converter (100) for connecting an electrical load (1) to a power supply grid (2), comprising a grid-side power converter (10) and a load-side power converter (20), wherein the grid-side power conve...
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WO/2023/111692A1 |
A system (10) for fault localization and power restoration in a power grid is provided. The system includes an upstream control unit (20) to provide first switching signals upon detecting a fault current in an upstream isolator (100). Th...
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WO/2023/110262A1 |
The present invention relates to a subsea substation system (100) comprising: an oil-filled water impermeable enclosure (102); an AC-transformer (104), and at least one overcurrent device (106a-d) electrically connected to the AC- transf...
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WO/2023/103825A1 |
A battery protection chip, a battery system, and a battery protection method. The battery protection chip (10) comprises: a discharge voltage limiting detection circuit (11) used for detecting a discharge drive signal output by a battery...
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WO/2023/106869A1 |
An electronic device according to various embodiments comprises: a first battery including a first protection circuit module (PCM); a second battery which is branched from a first node and connected in parallel with the first battery, an...
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WO/2023/098750A1 |
Provided in the present disclosure is an OVP device self-recovery method, which is applied to an OVP device self-recovery apparatus of a terminal device. The terminal device further comprises a battery, an OVP device, and a charging chip...
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WO/2023/098681A1 |
Disclosed in embodiments of the present disclosure are a flexible DC power grid fault line isolation method based on pre-perturbation of a DC circuit breaker, a protection device and system, a computer storage medium, and a computer prog...
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WO/2023/099169A1 |
The invention relates to an energy supply device, in particular for a machine tool. The energy supply device has at least one current-separating element with a nominal current-carrying capacity I_N, and the nominal current-carrying capac...
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WO/2023/097517A1 |
The present application provides a power supply system and a power conversion method. The power supply system comprises a power generation device, a converter circuit and a driving control circuit. When a power grid fails, the driving co...
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WO/2023/099484A1 |
The invention relates to a method (20) for monitoring a drive unit (1) of a vehicle (10), the drive unit (1) comprising an electric motor (2) and a control unit, the method comprising the steps of: actuating (21) the electric motor (2) w...
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WO/2023/093426A1 |
A solid-state power controller, comprising a hard wire configuration unit (1), a bus unit (2), a configuration circuit (3), and an algorithm control circuit (4). The hard wire configuration unit (1) and the bus unit (2) are respectively ...
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WO/2023/093425A1 |
The present invention relates to a power supply and distribution protection apparatus for a solid-state electronic switch, the apparatus comprising a first chip (1), a second chip (2) and a power circuit (3), wherein the first chip (1) i...
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WO/2023/095434A1 |
This electric power supply unit (100) comprises a cell terminal portion (72) connected to a chargeable battery, an output terminal portion (73) to which is connected an inverter that is the component of the battery to which electric powe...
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WO/2023/087943A1 |
Disclosed in the present application are a method and apparatus for discriminating the consistency of receiving and sending delays of a differential channel, and an electronic device and a differential protection communication system, wh...
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WO/2023/087428A1 |
A new secondary wire break protection apparatus for a current transformer, the apparatus comprising: a working power source, a first intermediate relay, a second intermediate relay, an alarm indicator lamp 1HL1, and a single-phase connec...
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WO/2023/087226A1 |
A method of determining a fault of a power system comprises: estimating, based on measured electrical quantities at a first position of a power line in the power system, voltages at a second position of the power line, the measured elect...
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WO/2023/087429A1 |
The present invention relates to a hybrid circuit breaker based on line inductance energy self-measurement, and a storage medium thereof and a control method therefor. The method comprises: when a hybrid circuit breaker receives a pull-i...
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WO/2023/087603A1 |
A control method for a rolling brush (3). During first-stage detection, if it is detected that the current of a roller brush motor reaches a preset locked-rotor protection current, the motor is not directly shut down, rather output power...
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WO/2023/086625A1 |
An exercise device with a redundant monitoring and control circuit integrated within or otherwise in communication with various components of the exercised device to detect and act on real or possible improper operation of the exercise d...
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WO/2023/082083A1 |
Provided in the present application are a voltage measurement circuit, a vehicle jump starter and a battery clip. The voltage measurement circuit comprises a voltage measurement module, a processing module and a switch module, wherein th...
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WO/2023/083536A1 |
The invention relates to a method (10) for protecting an external circuit (2) from a surge voltage by means of a protective circuit (1). The protective circuit (1) has a protective unit (3) with a semiconductor switch (4) and a voltage r...
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WO/2023/083761A1 |
The invention relates to a device comprising: - an electrical energy storage element defined by an associated DC operating voltage; - a charger configured to charge the storage element when the storage element is discharged and the devic...
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WO/2023/079975A1 |
This control device for a vehicle has an electric current path in which an electric current flows through a microcomputer, a first terminal being disposed downstream of the microcomputer. The anode of a connection diode is connected betw...
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WO/2023/078785A1 |
The invention relates to a method of controlling a power limit (P) of a circulating pump (1) comprising a critical component (4) and a first temperature sensor (5) arranged and configured to measure the temperature of the critical compon...
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WO/2023/077359A1 |
Disclosed in embodiments of the present application are a control system, an emergency start power supply, and a battery clip. The control system comprises a control logic operation circuit, a switch module, and at least one monitoring m...
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WO/2023/077889A1 |
The present invention provides a rapid determination method and system for transient stability of a half-wavelength power transmission system. The method comprises: acquiring a power and a power angle of a generator at a sending end of a...
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