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Patent Searching and Data


Matches 1 - 50 out of 7,646

Document Document Title
WO/2021/078532A1
An inverter circuit receives an AC input signal and uses at least two bidirectional switches between the input terminals and a junction node to perform the electrical inversion function. A resonant circuit is formed by a primary side ind...  
WO/2021/075643A1
A power generating transformer system (PGTS) where the core of the transformer has one of the generalized configurations is presented. Also, a power factor correction method in a power generating transformer system (PGTS) and a PGTS func...  
WO/2021/069189A1
The invention relates to a balancing device (10a) for a network, which comprises: a network input (11) for detecting balancing requirements; a transformer (21) comprising a first winding connected to the output of said network input; an ...  
WO/2021/058623A1
Apparatus and method for establishing a stable operating point of a H-bridge (Ml HSD, M2 LSD) with a center shunt switch (M5). The stable operating point lets a circuit connected to the H-bridge output (OUTPUT) work in a more ideal condi...  
WO/2021/052547A1
Synchronizing a grid side harmonic filter and pre-charging cell capacitors in modular multilevel converters can be achieved by: opening a transmission circuit breaker disposed on a first path between a power grid and a converter system; ...  
WO/2021/048327A1
The invention relates to a voltage transformer for converting a primary-side alternating voltage at a first voltage level into a secondary-side alternating voltage at a second voltage level, the voltage transformer having a DC link in wh...  
WO/2021/048023A1
Method, device and system for managing a mining facility (150 A-N) including a plurality of systems is disclosed. The method comprises generating, on a simulation unit (102, 330), system models (210, 220, 230, 240) for one or more system...  
WO/2021/042557A1
A traction-auxiliary converter and converter cabinet for an internal combustion locomotive, aimed at solving the technical problems that an existing internal combustion AC transmission locomotive is low in integration level, poor in ener...  
WO/2021/040355A2
Disclosed is an intelligent transformer topology in which a small power converter is added to a conventional distribution transformer. An intelligent transformer operating in a single phase, in which a small power converter is added to a...  
WO/2021/031749A1
A solid-state transformer, comprising a plurality of power units (100). Each power unit (100) comprises a high-voltage side module (110), a low-voltage side module (120), and an isolation transformer (130). The isolation transformer (130...  
WO/2021/028058A1
The embodiments herein relate to a system (100) for controlling a 3-phase transformer device (101, T1, T2, T3). The system (100) comprises the 3-phase transformer device (101, T1, T2, T3) which comprises a primary side and an adjustable ...  
WO/2021/030371A1
A system for transforming the voltage of AC electrical energy by resonant charge exchange between a first node and a second node. The system includes a capacitor or series-connected column of capacitors and a controller that is configure...  
WO/2021/020638A1
The present invention relates to an integrated inverter-charger device. According to one aspect of the present invention, an integrated inverter-charger device may be provided which comprises: a charging unit of which one end is connecte...  
WO/2021/013319A1
The present disclosure relates to an AC-to-AC MMC (2) configured to be connected between a three-phase AC system (10a) and a single-phase AC system (10b). The MMC comprises at least four converter arms (5) connected in a ring to allow a ...  
WO/2021/008726A1
The invention relates to a method and system for operating a system comprising a stored energy source and resistor, wherein, in order to discharge the stored energy source, an electrical power P that is constant over time is supplied to ...  
WO/2021/004655A1
The invention relates to a system for feeding a DC link and to a method for operating a system, wherein: a sensor for sensing a current in the DC link or a voltage at the DC link is connected to a control means, which controls a second c...  
WO/2021/006765A1
The invention relates to the field of electrical engineering and can be used, in particular, for powering an active load in an economical regime. The technical result that can be achieved by implementing the invention is that of powering...  
WO/2021/003885A1
The present application provides a drive control circuit and a home appliance. The drive control circuit comprises: a half-bridge circuit configured to perform conversion processing on a power supply signal, and specifically comprising a...  
WO/2021/003887A1
The present application provides a drive control circuit and a home appliance. The drive control circuit comprises: a half-bridge circuit connected into a bus circuit and configured to convert a power supply signal, each bridge arm of th...  
WO/2021/001785A1
One embodiment is a system comprising a medium voltage direct current (MVDC) link electrically coupling a first AC-DC converter and a second AC -DC converter. The first AC -DC converter is electrically coupled with a first alternating cu...  
WO/2020/259900A1
A power supply system (12) for an electric arc furnace (10) comprises an AC input (20) connectable to an electrical grid (22) and an AC output (24) for supplying at least one power electrode (14) of the arc furnace (10). The power supply...  
WO/2020/260032A1
Electrical circuit (1) for charging a DC voltage source from an AC voltage network, the circuit comprising: - an input (3) suitable for receiving an AC voltage from the voltage network, - a first output (4) suitable for being connected t...  
WO/2020/259907A1
A power supply system (12) for an electric arc furnace (10) comprises an AC input (20) connectable to an electrical grid (22) and an AC output (24) for supplying at least one power electrode (14) of the arc furnace (10); a resonant circu...  
WO/2020/252968A1
A smart thyristor voltage conversion circuit, comprising a first thyristor (20), a first alternating-current output driving circuit (60), and a main control circuit (80). One end of the first thyristor (20) is connected to an alternating...  
WO/2020/249385A1
The invention relates to a power converter (200), in particular of a wind energy installation for feeding electrical power into an electrical supply network, at least comprising: a multiplicity of rectifiers (210) which are connected to ...  
WO/2020/245916A1
A power conversion device according to an embodiment comprises a first power converter, a plurality of DCDC converters, and a second power converter. The first power converter includes: a plurality of first positive arms; a plurality of ...  
WO/2020/239326A1
The invention relates to a system (1) comprising a control device (10) with central electronics (11) designed for the intended connection and operation of differently coded electric motors (En) with different motor characteristics (Mn) a...  
WO/2020/221831A1
A power converter system (1A) is described. The system includes a power converter (2) with a first converter (2b) including a plurality of semiconductor devices. Each semiconductor device includes at least a controllable semiconductor sw...  
WO/2020/215834A1
Disclosed in the present application are a control method and apparatus for a variable frequency air conditioner and a variable frequency air conditioner, belonging to the field of compressors. Said method comprises: calculating a target...  
WO/2020/204807A1
The invention relates to a circuit breaker for an electrical circuit. The circuit breaker (100) is arranged between a power supply (302) and a load (304) and comprising a first circuit breaker (102) coupled in series with a second circui...  
WO/2020/201323A1
The invention relates to a method for generating at least an AC voltage using at least one inverter device (202), and the inverter device (202) comprises in each case at least one voltage input (206) for applying an input voltage, at lea...  
WO/2020/204806A1
The invention relates to a circuit breaker for an electrical circuit. The circuit breaker (100) is arranged between a power supply (302) and a load (304), wherein the circuit breaker (100) comprises control means (104) configured to swit...  
WO/2020/021526A3
Devices and methods for providing a regulated current to a varying resistive load. A voltage booster powered by a primary electrical source provides an adjustable voltage across the load, while a current regulator in series with the load...  
WO/2020/181348A1
The present invention patent application relates to an electronic converter device intended for use in universal brush motors with specific features relating to input and output voltage and to power. These motors are used in a range of e...  
WO/2020/183102A1
The invention relates to a system (1) configured to deliver as output a polyphase current of constant frequency from a synchronous generator (2) driven at variable speed, said system successively comprising, at the output of said generat...  
WO/2020/185116A1
The invention relates to computer engineering and can be used for building high-speed, high-voltage voltage level translators, including when interfacing elements of electronic systems having several power sources. The technical result c...  
WO/2020/182341A1
The invention relates to a drive system and a method for operating a drive system, comprising a converter and a second inverter and at least one first switching unit (9), wherein: an electric motor is connected to the AC voltage-side ter...  
WO/2020/182339A1
The invention relates to a drive system comprising a converter, in particular an AC/DC converter, and an inverter for supplying power to an electric motor which is electrically connected to the AC voltage-side terminal of the inverter, w...  
WO/2020/179280A1
The present invention concerns a method and a device for on-line monitoring a DC-bus capacitor comprised in a power converter that controls the power provided to a load through an output stage at each switching cycle using a pulse width ...  
WO/2020/173563A1
The present disclosure relates to an AC-to-AC MMC (2) configured to be connected between a first AC system (10a) and a second AC system (10b). The MMC comprises a plurality of parallel connected phase legs (4), each phase leg comprising ...  
WO/2020/172732A1
The present invention patent application relates to an automatic dual-voltage device that is designed to automatically switch the output of single-phase induction motors with power up to 3 HP/CV, immediately upon being connected to the 1...  
WO/2020/171886A1
According to various embodiments, a power conversion circuit is disclosed. The power conversion circuit includes at least one DC bus. The power conversion circuit further includes a plurality of DC -AC conversion units coupled to the DC ...  
WO/2020/164800A1
The invention relates to a system for contactless transmission of electrical power to a mobile part. The system comprises: a primary conductor; a compensating assembly for providing a capacitance; and the mobile part, the mobile part hav...  
WO/2020/163836A1
A driver (60) may be used to drive an electrically controllable optically active material in a privacy structure (12). In some examples, the driver receives power from a power source (62) at a supply voltage and a supply apparent power l...  
WO/2020/157791A1
[Problem] To provide an electron generating means having a circuit that is not liable to become damaged, and which generates electrons in a stable state. To provide a combustion promoting means, a moving body, and a sterilizing/deodorizi...  
WO/2020/159625A1
A power conversion system includes a feedback controller circuit connected between the output of a boost converter and a duty cycle control input of the boost converter. The feedback controller circuit comprises: a first summing node whi...  
WO/2020/151913A1
The invention relates to a drive system having a first converter and at least one second converter. The first converter has a first rectifier (11) within the converter housing (17), and the DC voltage-side connection of the rectifier is ...  
WO/2020/057707A3
This invention concerns a method of controlling a power converter system 26 operating in an overmodulation region. The power converter system 26 comprises more than two current controllers 71, 73, 77, 79 a modulator 76 and a power conver...  
WO/2020/142816A1
Fields of this patent ⋅ Distribution and transmission of electrical energy; ⋅ Tapping switches for voltage controllers; ⋅ Position indicators of tapping switches using magnetic means. The magnetic position indicator to which the pr...  
WO/2020/137237A1
In this switching module, a determination unit (303) brings a bidirectional switch (1A) into an open state and a bidirectional switch (1B) into a closed state only during a test period from a first time and then, if the difference absolu...  

Matches 1 - 50 out of 7,646