| Patents for H02J 3 - Circuit arrangements for ac mains or ac distribution networks (38,663) |
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| 06/03/2009 | CN101447670A Setting algorithm of parameters of power system stabilizer |
| 06/03/2009 | CN101447669A Method for monitoring safety and stability of electric network based on stable rule information model |
| 06/03/2009 | CN100495855C Reactive power automatic compensation method and apparatus |
| 06/02/2009 | US7541784 Dual voltage switching in power generation |
| 06/02/2009 | US7541693 Power distribution network for computer systems and other low-power applications |
| 06/02/2009 | US7541692 Peripheral device having a power supply |
| 05/28/2009 | WO2009067208A1 Adjusting distributed storage of solar electrical power responsive to changes in supply and demand |
| 05/28/2009 | WO2009065985A1 Wind farm |
| 05/28/2009 | WO2009065221A1 A method and system for distributing energy |
| 05/28/2009 | US20090138734 Power control system, power control apparatus, power control method and storage medium |
| 05/28/2009 | US20090135629 Universal Irrigation Controller Power Supply |
| 05/28/2009 | US20090134706 Regulated alternating current power supply |
| 05/28/2009 | DE4496438B4 Verfahren zur Steuerung eines elektrischen Kopplers zur Kopplung eines Wechselstromnetzes mit einem asynchronen Generator oder Motor und Koppler A method for controlling an electric coupler for coupling an AC network with an asynchronous generator or motor and coupler |
| 05/28/2009 | CA2710508A1 Adjusting distributed storage of solar electrical power responsive to changes in supply and demand |
| 05/27/2009 | EP1966040B1 Method for operating an energy system of a ship and energy system suitable therefore |
| 05/27/2009 | EP1912305B1 Control method of sodium-sulfur battery |
| 05/27/2009 | CN201247961Y Mobile dynamic compensator for reactive harmonious wave |
| 05/27/2009 | CN201247960Y Intelligent reactive compensation control device |
| 05/27/2009 | CN201247959Y Stillness type high voltage reactive compensator of control transformer based on thyristor |
| 05/27/2009 | CN201247958Y Universal energy-saving protector |
| 05/27/2009 | CN201247957Y Apparatus for adjusting mixed type distribution network electric energy quality synthetically |
| 05/27/2009 | CN201247956Y Logic apparatus for processing dead zone of electric energy quality adjustor |
| 05/27/2009 | CN101442207A Novel energy storage apparatus |
| 05/27/2009 | CN101442206A Automatic low-frequency low-voltage load-reducing centralization optimization control system |
| 05/27/2009 | CN101442198A Ice-melting mode and apparatus for mobile DC power supply |
| 05/27/2009 | CN101441454A Low-frequency unloading and fault circuit tagmeme on-line monitoring implementing method |
| 05/27/2009 | CN101441244A Criterion for measuring breaking step oscillation center position based on in situ electric quantity |
| 05/27/2009 | CN101440783A Wind generating set, wind power generation and operation control method thereof |
| 05/27/2009 | CN100492869C Exciting magnetic control method of the dual-rotor wind power generation and its control system |
| 05/27/2009 | CN100492868C Telescopic double-rotor speed-variable constant frequency generator |
| 05/27/2009 | CN100492851C Method for controlling an converter that is connected to a direct-current source |
| 05/27/2009 | CN100492832C Propulsion power system |
| 05/27/2009 | CN100492824C Hybrid synchronous/induction generator power plant |
| 05/27/2009 | CN100492443C Power factor compensation experimental instrument |
| 05/27/2009 | CN100491228C Suspended electric network power supplier for container tyre of harbor |
| 05/26/2009 | US7538455 Electronic device, power source control method, ROF system and its power supplying method and remote unit |
| 05/26/2009 | US7538453 Fan power supply system |
| 05/26/2009 | CA2280378C Arrangements to detect and respond to disturbances in electrical power systems |
| 05/22/2009 | WO2009063397A2 Method, apparatus and system for demand side electrical load management |
| 05/22/2009 | WO2009063220A2 Active network management |
| 05/22/2009 | WO2009063212A2 Method and apparatus for providing heat and power |
| 05/22/2009 | WO2009063104A1 System for producing hydrogen and electricity from photovoltaic energy |
| 05/22/2009 | WO2009062785A1 Solar inverter having a plurality of individual inverters connected in parallel and having a primary electronic control unit |
| 05/22/2009 | WO2009062432A1 Zero-phase-sequence impedance adjusting device and method of zero-phase-sequence current filter |
| 05/22/2009 | CA2705528A1 A method of demand side electrical load management and an associated apparatus and system |
| 05/22/2009 | CA2704696A1 Active network management |
| 05/21/2009 | US20090128250 Power line transmission |
| 05/21/2009 | US20090128236 High Efficiency Amplification |
| 05/21/2009 | US20090128119 Differential output circuit |
| 05/21/2009 | US20090128100 Power system control apparatus and power system control method |
| 05/21/2009 | CA2611424A1 A method and system for distributing energy |
| 05/20/2009 | EP2061143A2 Method and system to convert direct current (DC) to alternating current (AC) using a photovoltaic inverter |
| 05/20/2009 | EP2061131A1 Method and device for controlling the distribution of electrical energy for a number of electrical heating devices in a kitchen |
| 05/20/2009 | CN201243209Y Control system for wind generating set |
| 05/20/2009 | CN201243208Y Synthesis reactive compensator for monitoring electric network distribution change |
| 05/20/2009 | CN201243207Y Power-saving device |
| 05/20/2009 | CN201243206Y Low-voltage reactive-load auto compensation device based on wireless online |
| 05/20/2009 | CN201243205Y Harmonic shutter for capacitance compensation loop |
| 05/20/2009 | CN201243204Y Special reactive compensation and harmonic suppression device for electric drill |
| 05/20/2009 | CN201243190Y Electricity-saving protection device |
| 05/20/2009 | CN201242939Y Intelligent low-voltage power capacitor based on dry-type capacitance |
| 05/20/2009 | CN201241798Y High efficient wind power electric generator |
| 05/20/2009 | CN201241668Y Integrative energy-saving oil pumping machine |
| 05/20/2009 | CN101438476A Output variation relaxation system for new energy power generation system |
| 05/20/2009 | CN101438475A More compact and higher reliability power source system |
| 05/20/2009 | CN101437703A Detection and delimitation of maximum stator currents |
| 05/20/2009 | CN101436850A Impedance matching methods and systems performing the same |
| 05/20/2009 | CN101436844A Methods and systems for wind turbine generators |
| 05/20/2009 | CN101436833A Method and system to convert direct current (DC) to alternating current (AC) using a photovoltaic inverter |
| 05/20/2009 | CN101436790A On-line splicing and coalition method for electric network model containing complex T connection line |
| 05/20/2009 | CN101436789A Method for implementing power supply backward in scheduling automatization system |
| 05/20/2009 | CN101436781A Power system |
| 05/20/2009 | CN101436780A Self-healing control method for urban power distribution network |
| 05/20/2009 | CN101436779A Transient, dynamic stabilization aid decision-making automatic searching method based on parallel calculation |
| 05/20/2009 | CN101436778A Networking method for minitype electric network |
| 05/20/2009 | CN101436222A Accidental production analogy method based on equivalent electric quantity function method |
| 05/20/2009 | CN100490550C Rural area middle and small size communication transmission base station power supply device |
| 05/20/2009 | CN100490268C Method and circuit for using polarized device in AC applications |
| 05/19/2009 | US7536341 Method and system for regulating the production of a second form of energy, generated from a first form of energy |
| 05/19/2009 | US7535738 Method and apparatus including multi-drive configurations for medium voltage loads |
| 05/19/2009 | US7535123 Apparatus and method for selectively coupling system with a first power supply or a second power supply |
| 05/19/2009 | US7535122 Various methods and apparatuses for a multiple input-voltage-level voltage-regulator and a multiple voltage-level DC power supply |
| 05/19/2009 | US7535121 High voltage power supply apparatus and method of correcting current output from the apparatus |
| 05/19/2009 | US7535120 Power system with low voltage ride-through capability |
| 05/19/2009 | US7535118 Power supply system and fuel cell unit |
| 05/14/2009 | WO2009062206A1 Demand control unit |
| 05/14/2009 | WO2009060273A1 Method of operation and device for controlling an energy installation with photovoltaic modules |
| 05/14/2009 | WO2009059629A1 Device for regulating a high-voltage direct-current transmission system |
| 05/14/2009 | WO2009059628A1 Method for regulating a reactive power compensator |
| 05/14/2009 | WO2009013155A3 Method and apparatus for connection of a generator, which is driven by a diesel engine, to an electrical power supply system |
| 05/14/2009 | WO2007086647A3 Air conditioner and control method thereof |
| 05/14/2009 | US20090121553 Electronic power-saving device |
| 05/14/2009 | US20090121549 Method and system to convert direct current (dc) to alternating current (ac) using a photovoltaic inverter |
| 05/14/2009 | US20090121548 Dynamic current limits |
| 05/14/2009 | US20090121547 System and method for allocating power to loads |
| 05/14/2009 | US20090121544 Electrical power control system |
| 05/14/2009 | US20090121482 Variable speed power generator having two induction generators on a common shaft |
| 05/14/2009 | CA2704795A1 Method for controlling a var compensator |
| 05/13/2009 | EP2058921A1 Power conditioner |
| 05/13/2009 | EP2057729A1 Power converter arrangement and method |