| Patents for H02J 3 - Circuit arrangements for ac mains or ac distribution networks (38,663) |
|---|
| 01/28/2009 | CN101355252A Method for compensating error of parallel type mixed active electric power filter |
| 01/28/2009 | CN101354957A Large-capacity double-body pressure-regulating phase-shifting transformator |
| 01/28/2009 | CN101354956A Large-capacity double-body phase-shifting transformator |
| 01/28/2009 | CN100456628C AC exciting control system of double feed wind power generator based on DSP with secondary frequency modulation and its working method |
| 01/27/2009 | US7482711 Auxiliary power switching arrangement for PCI Express, PC's and similar applications |
| 01/27/2009 | CA2504435C Hybrid power flow controller and method |
| 01/22/2009 | WO2009010246A2 Method and apparatus for controlling a printing press in case of a fault or outage of the power supply system |
| 01/22/2009 | WO2009010025A1 Apparatus for feeding electrical energy into an energy supply system and dc voltage transformer for such an apparatus |
| 01/22/2009 | US20090021082 Generator Systems and Methods Using Timing Reference Signal to Control Generator Synchronization |
| 01/22/2009 | US20090021081 Methods and apparatus for three-phase inverter with reduced energy storage |
| 01/22/2009 | US20090021075 Semiconductor device |
| 01/21/2009 | EP2017937A1 Battery storage system and method for operating such a battery storage system |
| 01/21/2009 | EP2017936A1 Wind power system and method of operating it |
| 01/21/2009 | EP2017861A2 Line filter regulator |
| 01/21/2009 | EP2017473A2 Wind farm with increased revolution speed |
| 01/21/2009 | EP2017472A2 A system for guaranteeing continuity of operation in wind turbine generators during voltage dips not exceeding a predetermined level |
| 01/21/2009 | EP2015956A1 Detection and delimitation of maximum stator currents |
| 01/21/2009 | EP1312153B1 Wind power plant |
| 01/21/2009 | CN201185349Y Intelligent low-voltage outdoor reactive power compensating case |
| 01/21/2009 | CN201185348Y 磁性滤波器 Magnetic filter |
| 01/21/2009 | CN201185347Y Low-voltage dynamic reactive compensator |
| 01/21/2009 | CN101351942A Apparatus for converting an electrical current and method for reducing the load-change stress of power semiconductor units in the high-voltage energy distribution and transmission sector |
| 01/21/2009 | CN101351381A Method for operating an energy system of a ship and energy system suitable therefore |
| 01/21/2009 | CN101350528A Wind power system and method of operating it |
| 01/21/2009 | CN101350527A Variable speed drive system |
| 01/21/2009 | CN101350526A Method for coordinating and setting whole net PSS base on single machine infinite system |
| 01/21/2009 | CN101350525A Method for configuring main change reactive compensation capacitor set of transformer substation |
| 01/21/2009 | CN101350524A Computation method capable of tracking Davinan equivalence parameter base on total differential equation |
| 01/21/2009 | CN101350523A Method for distinguishing stability of muilt-timelag electric power system |
| 01/21/2009 | CN101349731A Real time evaluating method of voltage stability |
| 01/21/2009 | CN100454714C Load stack filter capable of suppressing radio frequency interference for domestic electric washing machine |
| 01/21/2009 | CN100454713C Power system and power converters |
| 01/21/2009 | CN100454712C System and method for power generation control, program, and medium |
| 01/21/2009 | CN100454183C System linkage apparatus, setting apparatus for system linkage apparatus and method of setting set values of system linkage apparatus |
| 01/20/2009 | US7479714 Apparatus and method for multiple-module electronic system power control |
| 01/15/2009 | WO2009007591A2 Method and system for managing electrical power supply outages on board an aircraft |
| 01/15/2009 | US20090019299 Method and apparatus for adjusting wakeup time in electrical power converter systems and transformer isolation |
| 01/15/2009 | US20090015067 Efficient dc distribution system, topology, and methods |
| 01/15/2009 | US20090015065 Centralized powering system and method |
| 01/15/2009 | US20090015063 Method and architecture for reduction in vehicle wiring |
| 01/15/2009 | US20090015062 Power supply apparatus |
| 01/15/2009 | DE102007032052A1 Electrical device's i.e. commercial refrigerator, power consumption regulating apparatus, has control device controlling operation of commercial refrigerator based on information measured by monitoring units |
| 01/15/2009 | CA2692300A1 Method and system for managing electrical power supply outages on board an aircraft |
| 01/14/2009 | EP2013958A2 An electrical generation protection system |
| 01/14/2009 | EP2013957A1 Pick-up apparatus for inductive power transfer systems |
| 01/14/2009 | EP2013956A2 Regenerative gate drive circuit for a power mosfet |
| 01/14/2009 | EP1269600B1 Synchronous frame regulation to extract a positive sequence component of a line voltage |
| 01/14/2009 | EP0919077B1 High efficiency lighting system |
| 01/14/2009 | CN201181848Y Filter device of intelligent dynamic reactive-load compensation thyristor |
| 01/14/2009 | CN201181847Y Phase control and null current switching control device |
| 01/14/2009 | CN201181846Y Two-stage bus capacitor self-compensation feed circuit |
| 01/14/2009 | CN201181845Y Static reactive compensator based on in-place DSP |
| 01/14/2009 | CN201181844Y Capacitor reactive compensator for transforming plant of 35kV voltage level and above |
| 01/14/2009 | CN201181843Y Filtering apparatus for power system |
| 01/14/2009 | CN201181842Y Dynamic electric voltage recovery device based on GPRS remote monitoring |
| 01/14/2009 | CN201181829Y DC great current de-icing apparatus with static state type dynamic reactive-load compensation function |
| 01/14/2009 | CN201181625Y Iron core reactor with adjustable reactance rate |
| 01/14/2009 | CN101346870A Circuit for transmitting an amplified resonant power to load |
| 01/14/2009 | CN101346869A Thyristor operated series capacitor module |
| 01/14/2009 | CN101346868A Balancing equipment |
| 01/14/2009 | CN101346779A Cooling of high voltage devices |
| 01/14/2009 | CN101345510A System and method for controlling input line harmonics in a motor drive |
| 01/14/2009 | CN101345508A Controllable afterflow method and excitation system of magnetic controlled shunt reactor |
| 01/14/2009 | CN101345500A Photovoltaic power generation system with grid-connected generation, independent power generation and UPS function |
| 01/14/2009 | CN101345423A 5-power level H-bridge cascade connection back-to-back current transformer used for wind power generation system |
| 01/14/2009 | CN101345422A Negative sequence compensation method of cascade connection multi-level circuit based on isolation type bidirectional transducer |
| 01/14/2009 | CN101345421A Method for implementing frequency voltage emergency control of power system |
| 01/14/2009 | CN101345420A Demand control unit, predicting method and program of consumed electric power |
| 01/14/2009 | CN101345419A Series voltage quality regulator and fast investment and cutting method |
| 01/14/2009 | CN101344020A Solar tower type focusing high temperature heat collection steam boiler-turbine electric generating apparatus |
| 01/14/2009 | CN101344016A Method for power generation by waste heat of coal gas |
| 01/13/2009 | US7478070 Electric power supply control system |
| 01/08/2009 | WO2009005780A1 Automatic utility usage rate analysis methodology |
| 01/08/2009 | WO2009004943A1 Method of calculating electric power consumption saving effect in energy-saving drive support method, energy-saving drive support system, and calculation program for electric power consumption saving effect |
| 01/08/2009 | WO2009004150A1 Energy conditioner |
| 01/08/2009 | WO2009003432A1 Inverter for feeding electrical energy into a power supply system |
| 01/08/2009 | WO2008128680A3 Wind energy plant with reactive power condition |
| 01/08/2009 | WO2008125697A3 A load management controller for a household electrical installation |
| 01/08/2009 | WO2008125696A3 A load management controller |
| 01/08/2009 | WO2008107507A3 Measuring system intended for grid quality and power curve testing in wind turbines and power supply quality testing |
| 01/08/2009 | US20090012918 System and method for creating a cost-effective and efficient retail electric power exchange/energy service provider load optimization exchange and network therefor |
| 01/08/2009 | US20090009153 Multiple output ac/dc power adapter |
| 01/08/2009 | US20090009005 Control method for parallel redundant power system |
| 01/08/2009 | US20090008999 Device making it possible to switch from one electric source to another |
| 01/08/2009 | US20090008994 Inductive coupling method for remote powering of sensors |
| 01/08/2009 | US20090008993 Hybrid electromechanical power transfer system |
| 01/08/2009 | DE202008013891U1 Stromversorgungssystem mit doppelter Synchronisation Power supply system with double synchronization |
| 01/07/2009 | EP2011960A2 An arrangement adapted for a subsea application |
| 01/07/2009 | EP2011221A1 Device for supplying a plurality of loads from an electrical power feed network |
| 01/07/2009 | EP1730828B1 Switching system for controlling electrical loads |
| 01/07/2009 | CN201178380Y Three-transistor step-up/step-down circuit with wide voltage inputting range for interconnected electricity power |
| 01/07/2009 | CN201178315Y Electricity transmission and interconnecting system of large solar electric power generation system |
| 01/07/2009 | CN201178314Y Voltage regulating dynamic reactive compensator |
| 01/07/2009 | CN201178313Y Switching apparatus for low-voltage reactive compensation |
| 01/07/2009 | CN201178312Y Low-voltage dynamic filtering compensating apparatus |
| 01/07/2009 | CN201178311Y Low-voltage compensating apparatus |
| 01/07/2009 | CN201178310Y 低压滤波补偿柜 Low pressure filter compensation cabinet |
| 01/07/2009 | CN201178309Y Serial type voltage disturbing apparatus |
| 01/07/2009 | CN201178308Y Voltage disturbing compensating apparatus |
| 01/07/2009 | CN201178307Y Precise electric energy supplying apparatus |