| Patents for H02J 3 - Circuit arrangements for ac mains or ac distribution networks (38,663) |
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| 03/14/2007 | CN2879500Y Switch power parallel self current equalizer |
| 03/14/2007 | CN2879499Y System intelligent electricity saving device |
| 03/14/2007 | CN2879498Y 谐波滤波器 Harmonic Filter |
| 03/14/2007 | CN1930751A Device for the prevention of serious faults in electrical mains supply networks |
| 03/14/2007 | CN1929711A Tube flow equalizing application circuit |
| 03/14/2007 | CN1929263A Combined type wind power magneto alternator |
| 03/14/2007 | CN1929234A Parallel computation method for large-scale electrical power system network tidal current segmentation |
| 03/14/2007 | CN1929233A Three load intelligent self-balancing method and system |
| 03/14/2007 | CN1305198C Direct current voltage balancing circuit of reactive generating device based on chained invertor |
| 03/14/2007 | CN1305197C Harmonic type mixed active power filter and its control method |
| 03/14/2007 | CN1305196C Solution to preventing power system from collapse in case of catastrophe |
| 03/13/2007 | US7190597 Control of an inverter pulse-width modulator |
| 03/13/2007 | US7190149 Method and apparatus for determining actual reactive capability curves |
| 03/13/2007 | US7190091 Selectable source input power supply |
| 03/13/2007 | US7190085 Wind turbine for producing electrical power and a method of operating the same |
| 03/13/2007 | CA2463130C Control system and method for voltage stabilization |
| 03/13/2007 | CA2305536C Phase controlled dimming system with active filter for preventing flickering and undesired intensity changes |
| 03/08/2007 | WO2007027141A1 Wind mill power flow control with dump load and power converter |
| 03/08/2007 | WO2007025726A1 Active network filter |
| 03/08/2007 | WO2007025570A1 Intelligent power monitoring unit |
| 03/08/2007 | US20070055636 Cellular minigrid |
| 03/08/2007 | US20070055409 Methods and apparatus for providing and distributing standby power |
| 03/08/2007 | US20070055408 Power generation system |
| 03/08/2007 | DE102005043422A1 Connecting line operating method for wind energy plant e.g. offshore-wind park, involves synchronously operating connecting line with one of two network zones during high power flow |
| 03/08/2007 | DE102005039886A1 Leistungsbedarfskontrolliertes modulares System Power consumption Controlled modular system |
| 03/07/2007 | EP1759138A2 Electric control and supply system |
| 03/07/2007 | EP1410490A4 Control system for a power converter and method of controlling operation of a power converter |
| 03/07/2007 | EP0801833B2 Transmission line power flow controller with unequal advancement and retardation of transmission angle |
| 03/07/2007 | CN2877104Y Voltage controlled inverter for interconnection |
| 03/07/2007 | CN1926742A Method for operating electric generator frequency-converter and wind-power turbomachine having electric generator operated by the method |
| 03/07/2007 | CN1925255A High voltage electric-saver |
| 03/07/2007 | CN1925254A Wind power generating system based on direct current generator |
| 03/07/2007 | CN1925253A Multifunctional safety voltage explosion-proof lighting lamp |
| 03/07/2007 | CN1303739C Automatic master-slave parallel control method for sine pulse width modulation inverter power supply |
| 03/07/2007 | CN1303738C A uniform electric energy quality regulator using DC energy-storage to proceed electric isolation |
| 03/06/2007 | US7188264 Power management system |
| 03/06/2007 | US7187565 High voltage power supply |
| 03/01/2007 | WO2007024508A1 Aggregation of distributed energy resources |
| 03/01/2007 | WO2006123200A3 Multiple source/multiple device connector |
| 03/01/2007 | US20070047270 Load detector for an AC-AC power supply |
| 03/01/2007 | US20070047163 Wind farm and method for operating same |
| 03/01/2007 | US20070046105 Information handling system including a power supply unit with a power converter for supplying power to multiple outputs |
| 03/01/2007 | US20070046104 Electronic apparatus and computer-executable program |
| 03/01/2007 | US20070046103 System for distributing AC power wthin an equipment rack |
| 03/01/2007 | CA2618465A1 Aggregation of distributed energy resources |
| 02/28/2007 | EP1758225A2 Apparatus, method and program for electric power amount control |
| 02/28/2007 | EP1756927A1 Switching apparatus and method for varying an impedance of a phase line of a segment of an electrical power line |
| 02/28/2007 | EP1456590B1 A domestic combined heat and power unit |
| 02/28/2007 | EP0885376B8 Optical encoder for driving an electric motor |
| 02/28/2007 | CN2874913Y Power supply device of smelting quartz production furnace |
| 02/28/2007 | CN2874888Y Power load regulator |
| 02/28/2007 | CN2874887Y Intelligent power saving device |
| 02/28/2007 | CN1922780A Device for covering the peak load |
| 02/28/2007 | CN1921257A Apparatus, method and program for electric power amount control |
| 02/27/2007 | US7184861 System and method for controlling generation over an integrated wireless network |
| 02/27/2007 | US7183752 Connection method for a static VAR compensator |
| 02/27/2007 | US7183751 Reactive power compensator device |
| 02/27/2007 | US7183669 Power and/or energy monitor, method of using, and display device |
| 02/27/2007 | US7183668 Generator with current and voltage abnormality detection |
| 02/27/2007 | US7183667 Method and apparatus for power inverter synchronization |
| 02/22/2007 | WO2007020265A1 Method for the operation of a power line, and arrangement comprising a power line |
| 02/22/2007 | WO2007019728A1 An electronic power-saving device |
| 02/22/2007 | WO2006086015A3 Method for retrofitting wind turbine farms |
| 02/22/2007 | US20070043477 System and method of controlling an HVAC system |
| 02/22/2007 | US20070040540 Method and apparatus for controlling power drawn from an energy converter |
| 02/22/2007 | US20070040539 Method and apparatus for controlling power drawn from an energy converter |
| 02/22/2007 | US20070040448 Extension cable with ac power sockets and dc power sockets |
| 02/22/2007 | US20070040447 Diode circuit having passive element property, impedance modulator including the diode circuit, and DC source including the diode circuit |
| 02/21/2007 | CN2872730Y Filter circuit with electromagnetic interference inhibiting function for 1.5P frequency-variable air conditioner |
| 02/21/2007 | CN2872704Y Explosive-insulating reactive-power in-situ compensator |
| 02/21/2007 | CN2872703Y Low-voltage loop harmonic inhibitor |
| 02/21/2007 | CN2872702Y Three-phase balance heating control unit |
| 02/21/2007 | CN2872701Y AC power supplier |
| 02/21/2007 | CN2872700Y Marine power-supply system |
| 02/21/2007 | CN2872699Y Negative mutual-inductive filter |
| 02/21/2007 | CN1918769A Scr-based static transfer switch device and method |
| 02/21/2007 | CN1916805A Energy saving equipment for machine for returning bittern in salt field |
| 02/20/2007 | US7180940 Fast phase synchronization and retrieval of sequence components in three-phase networks |
| 02/20/2007 | US7180270 Frequency converter for high-speed generators |
| 02/20/2007 | US7180210 Standby generator integration system |
| 02/20/2007 | US7180206 System for voltage stabilization of power supply lines |
| 02/20/2007 | US7180202 Method of operating a wind power installation and a wind power installation |
| 02/15/2007 | US20070038335 Real Power Regulation for the Utility Power Grid Via Responsive Loads |
| 02/15/2007 | US20070035290 Device for covering the peak load |
| 02/15/2007 | US20070034246 Power generation system |
| 02/15/2007 | DE102006026322A1 Distribution method for power requirement in major electrical units which are in parallel connection, involves switching of major units in parallel connection in priority mode and limiting of power in same proportion in other major units |
| 02/14/2007 | EP1753110A1 Modular power distribution apparatus and methods with protective earth conductor |
| 02/14/2007 | EP1751839A1 Low loss propulsion system |
| 02/14/2007 | EP1611657A4 Method and system for transferring a load between ac voltage sources |
| 02/14/2007 | CN2870304Y Data collection and processing apparatus based on DSP |
| 02/14/2007 | CN2870264Y 复合开关 Composite switch |
| 02/14/2007 | CN1913331A Sunlight electric thermal energy conversion system |
| 02/14/2007 | CN1913314A High voltage side frequency modulation adapter electric equipment |
| 02/14/2007 | CN1913279A Series composation step-up single phase power factor correction circuit |
| 02/14/2007 | CN1913278A Zero cross controller of reactive compensator |
| 02/14/2007 | CN1913277A Curren tracing control method for dynamic quick compensator |
| 02/14/2007 | CN1913061A Integral medium-voltage distribution transformer |
| 02/13/2007 | US7177821 Maintenance information management system and method of providing a maintenance plan |
| 02/13/2007 | US7177728 System and methods for maintaining power usage within a set allocation |
| 02/13/2007 | US7177727 Method for calculating power flow solution of a power transmission network that includes unified power flow controllers |