| Patents for H02J 3 - Circuit arrangements for ac mains or ac distribution networks (38,663) |
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| 04/28/2009 | US7525216 Portable power source to provide power to an electronic device via an interface |
| 04/28/2009 | US7525208 Method for operating a wind turbine during a disturbance in the grid |
| 04/23/2009 | WO2009051585A1 Power system having dual synchronization |
| 04/23/2009 | WO2009050311A1 Production system for electric energy and hydrogen |
| 04/23/2009 | WO2009010025A8 Apparatus for feeding electrical energy into an energy supply system and dc voltage transformer for such an apparatus |
| 04/23/2009 | WO2008132551A3 Current bypass for distributed power harvesting systems using dc power sources |
| 04/23/2009 | WO2008047374A3 Switched resonant-tank, cell based power converter |
| 04/23/2009 | WO2006047715A3 Portable hybrid applications for ac/dc load sharing |
| 04/23/2009 | US20090102286 Apparatus and methods for reducing resonance in multiple inverter systems |
| 04/23/2009 | US20090102285 Power Converter and Its Control Method and Air Conditioner |
| 04/23/2009 | US20090102284 Load and Consumer |
| 04/23/2009 | DE212007000057U1 Modulares Wechselrichtersystem Modular Inverter System |
| 04/23/2009 | DE102007049251A1 Windenergieanlagen mit Regelung für Netzfehler und Betriebsverfahren hierfür Wind turbines for power control errors and operating method therefor |
| 04/23/2009 | DE102007043888A1 Medium e.g. electricity, supplying device for consumer in e.g. hospital, has extraction points connected with supply device by communication transmission device, which controls supply at extraction points in extraction and/or feed side |
| 04/23/2009 | CA2702795A1 System for producing electric energy and hydrogen |
| 04/22/2009 | EP2051364A2 Method for operating an inverter |
| 04/22/2009 | EP2050176A1 Parameter estimation for a thermal model of a power line |
| 04/22/2009 | CN201226447Y Synthesis apparatus for active dynamic reactive compensation and passive filtering compensation |
| 04/22/2009 | CN101416376A Universal three phase controllers for power converters |
| 04/22/2009 | CN101416375A Space-saving inverter with reduced switching losses and increased life |
| 04/22/2009 | CN101416365A Apparatus and method for controlling electric power tide in transmission line |
| 04/22/2009 | CN101414752A Closed-cycle control system for reactive automatic optimization of network-configuring voltage |
| 04/22/2009 | CN101414751A System and method for forecasting wind electric power, and electric network system |
| 04/22/2009 | CN101413981A Electric power system operation standby reliability testing system |
| 04/22/2009 | CN101413472A Free style electric generating apparatus of river water stream |
| 04/22/2009 | CN100481672C Power supply device |
| 04/22/2009 | CN100481668C Parallel computation method for large-scale electrical power system network tidal current segmentation |
| 04/22/2009 | CN100481666C A method for judging multi-fault based on line fault state and real power on control section |
| 04/21/2009 | US7523321 Information handling system including a battery switching circuit |
| 04/21/2009 | US7521902 Power balancing of multiple synchronized generators |
| 04/21/2009 | US7521900 Method and assembly for insulating polarized device |
| 04/21/2009 | US7521820 Electrical apparatus system |
| 04/16/2009 | WO2009047231A1 Renewable energy production and storage apparatus |
| 04/16/2009 | WO2008135043A3 Method and devices for using energy stored in mechanical-electrical systems and other electrical systems as a regulating reserve in electrical supply networks |
| 04/16/2009 | WO2006113518A3 Correction of phase shifts introduced between transformer windings |
| 04/16/2009 | US20090096426 Generator controller |
| 04/16/2009 | US20090096292 Pulse generation circuit and uwb communication device |
| 04/16/2009 | US20090096291 Power Supply Control |
| 04/16/2009 | US20090096290 Image Processing Apparatus |
| 04/16/2009 | DE102007048923A1 Leistungszuführungsvorrichtung Leistungsmanagement-Server Leistungsmanagement-System Leistungszuführungsverfahren Power supply device power management server power management system power supply method |
| 04/16/2009 | DE102007048276A1 Low voltage network for building, has cable including number of lines that are arranged symmetrically for conducting reflector potentials, where cable has electrically conductive shield enclosing lines |
| 04/16/2009 | DE102007047165A1 Energieversorgung Energy supply |
| 04/15/2009 | EP2048762A1 Power system and method for managing charging state in that power system |
| 04/15/2009 | EP2048761A1 Power system and method for supplying ac power |
| 04/15/2009 | EP2048759A1 Facility for producing and storing renewable energy |
| 04/15/2009 | EP2048758A2 Power supply apparatus, power management server, power management system, power supply method |
| 04/15/2009 | EP2048757A1 Power control device |
| 04/15/2009 | EP2047590A1 Power supply control for power generator |
| 04/15/2009 | EP2047577A2 Method and system of real time management and modulation of electricity consumption |
| 04/15/2009 | EP1917707B1 Modular system controlled according to power requirements |
| 04/15/2009 | CN201222656Y Mining flame-proof type high voltage reactive power-compensating device |
| 04/15/2009 | CN201222655Y Self-control compensation integrated machine for screw pump |
| 04/15/2009 | CN201222654Y Novel safety defense system for electric power system |
| 04/15/2009 | CN201222653Y Manual switching line for 15KW or less photovoltaic power station and commercial power |
| 04/15/2009 | CN201222646Y Electric control circuit FOR air compressor |
| 04/15/2009 | CN101409516A Simple network-connecting generation inverter |
| 04/15/2009 | CN101409452A Parallel connection system and method for inverter |
| 04/15/2009 | CN101409451A Multi-fan parallel connection type wind-light complementation power generation system |
| 04/15/2009 | CN101409450A Static state synchronization reactive compensator connected through capacitance impedance and control method (thereof) |
| 04/15/2009 | CN101409449A Circuit structure for photovoltaic power generation system |
| 04/15/2009 | CN101409448A Electric power system protection and control system and distributed control system |
| 04/15/2009 | CN101409447A Method for optimizing electric power system tide base on part automatic differential technology |
| 04/15/2009 | CN101409432A Design execution method for forming wartime netted power supply using peacetime power station |
| 04/15/2009 | CN101409008A Integrated system for monitor, management and remotely meter-reading of power distribution network |
| 04/15/2009 | CN101408908A Electric power system practical time lag margin computation method based on optimization |
| 04/15/2009 | CN100479288C Electric circuit breaker, watt meter and power distributing network |
| 04/15/2009 | CN100478821C Electric power controlling and economizing apparatus and electric power controlling method |
| 04/14/2009 | US7519506 System and method for monitoring and managing electrical power transmission and distribution networks |
| 04/14/2009 | US7518266 Method and apparatus for improving AC transmission system dispatchability, system stability, and power flow controllability using DC transmission systems |
| 04/14/2009 | US7518263 Time delay control scheme for a power supply with multiple outputs |
| 04/14/2009 | US7518262 Power supply system, multiple dwelling, and computer program |
| 04/09/2009 | WO2009046132A1 Modular electrical grid interface device |
| 04/09/2009 | WO2009044293A2 Prediction scheme for step wave power converter and inductive inverter topology |
| 04/09/2009 | WO2009043768A2 Energy supply with a distribution station |
| 04/09/2009 | WO2009022198A3 Conditioning device for energy supply networks |
| 04/09/2009 | WO2009010246A3 Method and apparatus for controlling a printing press in case of a fault or outage of the power supply system |
| 04/09/2009 | US20090091191 Electric power supply system |
| 04/09/2009 | US20090091187 Device for Powering a Plurality of Loads from an Electrical Power Supply Network |
| 04/09/2009 | US20090091186 System and method for multiple sense point voltage regulation |
| 04/09/2009 | DE102007044601A1 Windpark mit Spannungsregelung der Windenergieanlagen und Betriebsverfahren Wind farm voltage control of wind turbines and operating procedures |
| 04/09/2009 | DE102007037396A1 Power supplying device for lorry, has motors/generators and electronic control unit for X-by-wire-system supplying minimum power to vehicle in case of failure of mains power supply and execute functions of wheel and axle guide module |
| 04/09/2009 | CA2701738A1 A method of extension of the regulation range of electric power supplied to the electricity grid and an energy system with an extended regulation range |
| 04/08/2009 | EP2044668A2 Polar transmitter having a dynamically controlled voltage regulator and method for operating same |
| 04/08/2009 | EP2044667A1 Method and apparatus for managing an energy consuming load |
| 04/08/2009 | EP1836392A4 Power generation system incorporating a vanadium redox battery and a direct wind turbine generator |
| 04/08/2009 | EP1723709B1 Device for the prevention of serious faults in electrical mains supply networks |
| 04/08/2009 | CN201219235Y Device for reducing harmonic wave discharged by UPS to electric network |
| 04/08/2009 | CN201219201Y Experiment electric power reclamation plant for diesel engine |
| 04/08/2009 | CN201219200Y Non-flow low-voltage reactive power compensation set |
| 04/08/2009 | CN201219199Y Full digital active electric power filtering controller |
| 04/08/2009 | CN101404476A Operation control method for parallel variable-speed constant-frequency wind generator set |
| 04/08/2009 | CN101404475A Method for restraining hyposynchronous resonance of power system |
| 04/08/2009 | CN101404414A Power distribution network electromagnetic optimization dynamic loss reduction method, system and synthetic loss reduction system |
| 04/08/2009 | CN101404413A Idle work optimization method suitable for on-line application |
| 04/08/2009 | CN101404412A Method for static electric voltage stability analysis |
| 04/08/2009 | CN101404411A Fault fitting method in load modeling |
| 04/08/2009 | CN100477442C Medium voltage mixed active electric filter |
| 04/08/2009 | CN100477047C Intelligent compound switch |
| 04/08/2009 | CN100476314C Domestic heat and power system |
| 04/07/2009 | US7516106 System and method for controlling usage of a commodity |