| Patents for H02J 3 - Circuit arrangements for ac mains or ac distribution networks (38,663) |
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| 04/21/2005 | US20050084726 Fuel cell system with load management |
| 04/21/2005 | US20050084721 Power supply system and fuel cell unit |
| 04/21/2005 | US20050083627 Hybrid parallel active power filter for electrified railway system |
| 04/20/2005 | CN2694584Y Power distribution switching apparatus |
| 04/20/2005 | CN1197753C Lift controller |
| 04/19/2005 | US6882904 Communication and control network for distributed power resource units |
| 04/19/2005 | US6882888 Configuration of a control system for an electrical switchgear assembly |
| 04/19/2005 | US6882550 Harmonic neutralized frequency changer |
| 04/19/2005 | US6882549 Active filter for power distribution system with selectable harmonic elimination |
| 04/19/2005 | CA2333851C Power system stabilization system and method employing a rechargeable battery system |
| 04/19/2005 | CA2222774C Apparatus for and method of evenly distributing an electrical load across a three-phase power distribution network |
| 04/14/2005 | WO2005034318A2 Distributed floating series active impedances for power transmission systems |
| 04/14/2005 | US20050077887 Rectification system for improving power quality of electrical power systems |
| 04/13/2005 | EP1523091A2 Hybrid synchronous/induction generator power plant |
| 04/13/2005 | EP1523088A2 Method in connection with network converter, and network converter |
| 04/13/2005 | CN2692901Y Energy-saver for electric machine |
| 04/13/2005 | CN1606218A Hybrid synchronous/induction generator power plant |
| 04/12/2005 | US6879884 Energy evaluation support system, program, information storage medium, and energy evaluation support method |
| 04/12/2005 | US6879883 Approach for managing power consumption in buildings |
| 04/12/2005 | US6879062 Electrical substation |
| 04/12/2005 | US6879061 Current adjusting apparatus and current adjusting method |
| 04/12/2005 | US6879059 Interruptible power supply module |
| 04/12/2005 | US6879053 Transformerless, load adaptive speed controller |
| 04/12/2005 | US6877565 Arrangement for the removal of cuttings and gas arising from drilling operations |
| 04/07/2005 | WO2005031941A1 Method for operating a wind turbine during a disturbance in the grid |
| 04/07/2005 | WO2005031940A1 System for transmission of electric power |
| 04/07/2005 | WO2005031939A1 Motor drive system |
| 04/07/2005 | WO2005031487A1 Device for adjusting the impedance of a high voltage line supplying an alternating current |
| 04/07/2005 | WO2005031160A2 Wind power plant comprising a reactive power module for supporting a power supply system and corresponding method |
| 04/07/2005 | US20050074665 System for storing and/or transforming energy from sources at variable voltage and frequency |
| 04/07/2005 | US20050073284 Hybrid synchronous/induction generator power plant |
| 04/07/2005 | US20050073280 Magnetic noise reduction method for AC rotary electric machine, and motor control apparatus and AC rotary electric machine apparatus using the same |
| 04/07/2005 | US20050073200 Distributed floating series active impedances for power transmission systems |
| 04/07/2005 | US20050073199 Swithcing assembly and method |
| 04/06/2005 | EP1520090A1 Method for operating an energy storing energy generating plant |
| 04/06/2005 | EP1299938B1 Active filter and method for suppressing current harmonics |
| 04/06/2005 | CN2691138Y Secondary swithch type 6KV and 10KV static reactive compensator |
| 04/06/2005 | CN2691137Y Combined low voltage reactive automatic compensating box |
| 04/06/2005 | CN2691136Y Electronic power saving device |
| 04/06/2005 | CN2691135Y Outdoor high voltage automatic reactive compensator |
| 04/06/2005 | CN2691134Y New power supply device |
| 04/06/2005 | CN1605150A Oxidation reduction reflux battery system and its operation method |
| 04/06/2005 | CN1605143A Control system and method for voltage stabilization |
| 04/06/2005 | CN1604991A Domestic combined heat and power unit |
| 04/06/2005 | CN1604448A Power-supply device |
| 04/06/2005 | CN1604421A Unified electric energy quality controller |
| 04/06/2005 | CN1604420A 一种电能质量调节器 POWER QUALITY regulator |
| 04/06/2005 | CN1196239C Switchover apparatus and method for electric source system |
| 03/31/2005 | WO2005029690A1 Pwm cyclo converter |
| 03/31/2005 | WO2005029670A1 Grid stabilising system |
| 03/31/2005 | WO2005029669A2 Active filter for multi-phase ac power system |
| 03/31/2005 | US20050071299 Method of assisting price determination of fuel for electricity generation and apparatus therefor |
| 03/31/2005 | US20050071092 Load management in a power system |
| 03/31/2005 | US20050071050 Power flow controller responsive to power circulation demand for optimizing power transfer |
| 03/31/2005 | US20050068699 Power-supply device |
| 03/31/2005 | US20050068012 Method and apparatus for controlling power drawn from an energy converter |
| 03/31/2005 | US20050067900 Electrical power control system |
| 03/31/2005 | DE10338710A1 Remotely controlled energy store for use by private houses and businesses, is designed to store energy during periods of low demand and release or supply the stored energy during periods of high demand |
| 03/31/2005 | CA2535458A1 Methods, systems and apparatus for regulating frequency of generated power using flywheel energy storage systems with varying load and/or power generation |
| 03/30/2005 | EP0950278B1 Circuit for selective power supply to electrical units |
| 03/30/2005 | CN2689594Y Controllers with universal electrical appliances switches and electrical carrier controlling module function |
| 03/30/2005 | CN2689581Y Resonant passive harmonic inhibitors |
| 03/30/2005 | CN2689562Y PFC circuit with harmonic inhibiting function |
| 03/30/2005 | CN1602535A Method for predicting a future voltage and/or current curve |
| 03/30/2005 | CN1601847A Wind power generating and network electricity complementary power supply for pumping unit |
| 03/30/2005 | CN1601846A Static reactive compensator able to continuously regulating capacity reactive |
| 03/30/2005 | CN1601845A Large capacity parallel active filter |
| 03/30/2005 | CN1601844A power transformer having harmonic suppression function and based on harmonic paraphase principle |
| 03/29/2005 | US6873142 Transformer over-current protection with RMS sensing and voltage fold-back |
| 03/29/2005 | US6873080 Synchronous compensator plant |
| 03/29/2005 | CA2443450A1 Method and apparatus for controlling power drawn from an energy converter |
| 03/24/2005 | WO2005027332A1 Power regulator for power inverter |
| 03/24/2005 | WO2005027330A1 Electronic generator |
| 03/24/2005 | WO2005027301A1 Method for operating a frequency converter of a generator |
| 03/24/2005 | WO2005027300A1 A module, a converter, a node, and a system |
| 03/24/2005 | WO2004107543A3 Power converter for a solar panel |
| 03/24/2005 | US20050063115 Power conversion system and method of converting power |
| 03/24/2005 | US20050062290 Power control interface between a wind farm and a power transmission system |
| 03/24/2005 | US20050062289 Heat/electric power supply system having power storage unit |
| 03/23/2005 | EP1517021A1 Power fluctuation suppressing method and power generation facility using same |
| 03/23/2005 | EP1515684A2 Care and/or make-up cosmetic composition structured with silicone polymers and organogelling agents, in rigid form |
| 03/23/2005 | CN2687925Y High-voltage parallel capacitor no-flashy-flow no-overvoltage switching device |
| 03/23/2005 | CN2687676Y Compensating box for metering switch |
| 03/23/2005 | CN1599188A Parallel cross operation method of critical continuous conducting mode power factor corrector |
| 03/23/2005 | CN1599187A Electric energy mass and powerless compensation combination controller |
| 03/22/2005 | US6870141 Method for driving appliances and household appliance with energy management |
| 03/22/2005 | CA2226537C Power flow control with rotary transformers |
| 03/17/2005 | WO2005025026A1 Method for operating or controlling a wind turbine and method for providing primary control power by means of wind turbines |
| 03/17/2005 | US20050057950 Power regulator for power inverter |
| 03/17/2005 | US20050057949 12th active filter capable of concurrently removing 11th and 13th harmonics |
| 03/17/2005 | US20050057224 Alternating-source peak-shift power application system, method and program product |
| 03/16/2005 | EP1386078B1 Wind energy plant and method for operating a wind energy plant |
| 03/16/2005 | CN2686183Y Double-capacity low-voltage automatic reactive compensation unit apparatus |
| 03/16/2005 | CN2686182Y Adier capacitance compensation digital controlled projecting and switching device |
| 03/16/2005 | CN1595800A Controllable silicon triggering circuit for equipotential switching of capacitor |
| 03/16/2005 | CN1595758A Voltage control for wind generators |
| 03/16/2005 | CN1595757A Method for optimizing power load of power consuming enterprise |
| 03/16/2005 | CN1595756A A three-phase low pass filter connected with power network |
| 03/16/2005 | CN1595755A Serial electric energy quality controller |
| 03/15/2005 | US6868311 Method and system for on-line dynamical screening of electric power system |