| Patents for H02J 3 - Circuit arrangements for ac mains or ac distribution networks (38,663) |
|---|
| 01/16/2008 | EP1878102A2 System and method for electrical power conversion |
| 01/16/2008 | EP1877885A2 Power factor correction apparatus and method of producing a power factor correction capacitance for a specified load |
| 01/16/2008 | CN201008098Y Medium voltage mixed active electric power filter |
| 01/16/2008 | CN201008097Y Highly effective energy-saving device |
| 01/16/2008 | CN101106280A A method for making electric conductor no current to ground to protect body security |
| 01/16/2008 | CN101106279A Merged network and power adjustment system for direct drive permanent magnetic synchronization generator and its method |
| 01/16/2008 | CN101106278A A voltage powerless control method for transformer station |
| 01/16/2008 | CN101106277A A powerless optimization compensation method for 10KV distribution network unit line |
| 01/16/2008 | CN101106276A Fully intelligent power-saving device |
| 01/16/2008 | CN101106275A A voltage powerless control system for transformer station and its control method |
| 01/16/2008 | CN101106274A Powerless voltage automatic control system for area power grid |
| 01/16/2008 | CN101106273A Integrated power quality adjustment control method and device |
| 01/16/2008 | CN101104387A Regenerating braking energy inverting device for orbit traffic vehicle |
| 01/16/2008 | CN100362739C Method and device for producing electric motor arbitrary mechanical characteristic based on PWM technique |
| 01/16/2008 | CN100362721C High-efficient energy-saving power supply method and control system |
| 01/16/2008 | CN100362720C Active superconducting direct current limiter |
| 01/16/2008 | CN100362443C Regulating board of static var compensator based on floating point DSP and FPGA |
| 01/15/2008 | US7319309 Load tap change monitoring system and method |
| 01/15/2008 | US7319280 Power line coupler adapted for use with multiple communication systems using different frequency spectra |
| 01/15/2008 | CA2382055C Device, system and method for monitoring a household electric appliance |
| 01/10/2008 | WO2008004625A1 Power control device |
| 01/10/2008 | WO2007082850A3 Method and device for providing a supply voltage by means of generator units connected in parallel |
| 01/10/2008 | US20080010182 Bidding for Energy Supply to Resellers and Their Customers |
| 01/10/2008 | US20080007978 DC power transmisson system of voltage source converter using pulse-interleaving auxiliary circuit |
| 01/10/2008 | US20080007121 Power system with low voltage ride-through capability |
| 01/10/2008 | DE102006031662A1 Stromrichterschaltungsanordnung für eine Hochvoltgleichspannungsverbindung Converter circuit arrangement for a high voltage direct voltage connection |
| 01/09/2008 | EP1876696A2 Converter switching assembly for a high voltage direct current connection |
| 01/09/2008 | EP1875597A1 Integrated torsional mode damping system and method |
| 01/09/2008 | EP1875581A1 Twelve-pulse high-voltage direct current transfer |
| 01/09/2008 | CN201004591Y Serial dual rotor wind electromotor speed-varying and frequency-constant excitation system |
| 01/09/2008 | CN201004590Y Serial permanent dual rotor wind electromotor and speed-varying and frequency-constant control system |
| 01/09/2008 | CN201004589Y Serial dual rotor wind power generator and its rate-varying and excitation-varying system |
| 01/09/2008 | CN201004556Y Remote monitoring device for low voltage distribution and powerless optimization |
| 01/09/2008 | CN201004555Y Individual control circuit for multiple power outputs |
| 01/09/2008 | CN101102048A A harmonic current prediction method for compensating control delay |
| 01/09/2008 | CN101102047A An integrated power-saving protection control system |
| 01/09/2008 | CN101102046A An integrated power-saving protection control system |
| 01/09/2008 | CN101102045A An integrated power-saving protection control system |
| 01/09/2008 | CN101102044A An integrated power-saving protection control system |
| 01/09/2008 | CN100361364C Zero cross controller of reactive compensator |
| 01/09/2008 | CN100361363C Low-loss multi-tuned passive power filter |
| 01/09/2008 | CN100361362C Separate injection active power filter and frequency-divided self-adaptive control method |
| 01/09/2008 | CN100361361C Intelligent railway signal power source switching module |
| 01/08/2008 | US7317301 Auxiliary power supply |
| 01/03/2008 | WO2008002336A1 Method and apparatus for temperature-based load management metering in an electric power system |
| 01/03/2008 | WO2008002226A1 Modular hvdc converter |
| 01/03/2008 | WO2008002223A1 Power compensator and method for providing a black start with that compensator |
| 01/03/2008 | WO2008001655A1 Demand control device |
| 01/03/2008 | WO2008000626A1 Hvdc system and method to control a voltage source converter in a hvdc system |
| 01/03/2008 | WO2008000531A1 High voltage plant |
| 01/03/2008 | WO2007103500A3 Method and system for controlling an operation of an electrical power network |
| 01/03/2008 | WO2007086032A3 Power supply with shunt capacitor and load in resonance |
| 01/03/2008 | WO2005048433A3 An ac power generating system |
| 01/03/2008 | US20080004721 Method and Apparatus for Providing Economic Analysis of Power Generation and Distribution |
| 01/03/2008 | US20080001480 Serial advanced technology attachment device presence detection and hot-plug in low power mode |
| 01/03/2008 | US20080001479 Method and Device for Supporting the Alternating Current Frequency in an Electricity Network |
| 01/03/2008 | DE102006028823A1 Power supply network for energised consumers in passenger aircraft, has power supply with multiple output connectors, where each of multiple consumers is connected to one of multiple output connectors via main supply wire |
| 01/03/2008 | CA2656515A1 Method and apparatus for temperature-based load management metering in an electric power system |
| 01/02/2008 | EP1873885A1 High voltage plant |
| 01/02/2008 | EP1872469A1 Method for operating an inverter comprising an upstream step-up device |
| 01/02/2008 | CN201001042Y Low-voltage distribution system electrical energy quality synthetic controller |
| 01/02/2008 | CN201001041Y Electric power filter |
| 01/02/2008 | CN201001040Y Multifunctional integration loading type power-saving device |
| 01/02/2008 | CN201000584Y Reactive power dynamic auto compensator |
| 01/02/2008 | CN101098079A Electric power supply apparatus and method of synchronously operating power converter |
| 01/02/2008 | CN101098078A Explosion-proof vacuum wattless power compensation electromagnetic starter for mining |
| 01/02/2008 | CN100359779C Parallel-in inverter current control method adopting filter intermediate current feed-back |
| 01/02/2008 | CN100359778C Voltage compensation device |
| 01/01/2008 | US7315769 Multi-tier benefit optimization for operating the power systems including renewable and traditional generation, energy storage, and controllable loads |
| 01/01/2008 | US7315096 Voltage regulator circuit for blade server |
| 12/27/2007 | WO2007103498A3 Apparatus and method for predictive control of a power generation system |
| 12/27/2007 | US20070299562 Method and apparatus for temperature-based load management metering in an electric power system |
| 12/27/2007 | US20070296273 Power supply network with integrated undervoltage protection in a passenger aircraft |
| 12/27/2007 | US20070296272 Driving device with common driver |
| 12/26/2007 | EP1870991A1 Method for operating an inverter circuit |
| 12/26/2007 | CN200997533Y Capacitor compensater of moulded installation low-voltage dynamic |
| 12/26/2007 | CN200997532Y Intelligent dynamic reactive compensated controller |
| 12/26/2007 | CN200997531Y Power-supply passive filter |
| 12/26/2007 | CN200997530Y Power-supply passive filter |
| 12/26/2007 | CN200997529Y Passive resonance-eliminating filter |
| 12/26/2007 | CN101095270A A method and a device for controlled reclosing of a circuit breaker |
| 12/26/2007 | CN101093974A Energy saving control box for pumping unit in oil field, and energy saving control method |
| 12/26/2007 | CN101093941A Permanent magnet numeral power set with multiple oil engines |
| 12/26/2007 | CN101093940A Three-phase full bridge voltage type equipment for merging optical volt into power net |
| 12/26/2007 | CN101093939A Major loop in high voltage static, dynamic reactive power compensation equipment |
| 12/26/2007 | CN101093938A Intelligent electricity saver in use for three-phase AC electrical supply system |
| 12/26/2007 | CN100358210C Anti-shock anti-short circuit no-contact energy saving safety device for three phase AC power source |
| 12/25/2007 | US7312539 Output suppressing method of a plurality of dispersed power sources and dispersed power source managing system |
| 12/25/2007 | US7312538 Method and apparatus for regulating multiple outputs of a single inductor DC to DC converter |
| 12/21/2007 | WO2007145034A1 Synchronous input method and synchronous input device |
| 12/21/2007 | WO2007127378A3 Regenerative gate drive circuit for a power mosfet |
| 12/21/2007 | WO2007073726A3 Device for storing energy, and use of such a device to store energy |
| 12/20/2007 | US20070294144 System and method for distributing transformer capacity among transformer users |
| 12/20/2007 | US20070291517 Power supply circuit with positive feedback circuit |
| 12/20/2007 | DE102007028582A1 Wind turbine e.g. wind generator, for generating electrical energy from wind energy, has generator-sided and main-sided frequency converters that supply reactive power to electrical load and receive power from load |
| 12/19/2007 | EP1868273A2 Automatic trip device, network system using it and control method thereof |
| 12/19/2007 | EP1867018A1 Electrical low-voltage switchgear |
| 12/19/2007 | EP1866717A2 Methods and systems for intentionally isolating distributed power generation sources |
| 12/19/2007 | EP1553693B1 Ac rotary electric machine magnetic noise reduction method, motor control device and ac rotary electric machine using the same |
| 12/19/2007 | CN200994158Y Powersupply allocating device capable of filtering high frequency |