| Patents for H02J 3 - Circuit arrangements for ac mains or ac distribution networks (38,663) |
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| 07/08/2004 | US20040130920 Circuit and fault tolerant assembly including such circuit |
| 07/08/2004 | US20040130216 Connecting circuit and method for connecting a generator to the electricity grid making use thereof |
| 07/07/2004 | EP1435122A2 Method and system for controlling and recovering short duration bridge power to maximize backup power |
| 07/07/2004 | CN2624496Y Novel reactance filtering electricity saver |
| 07/06/2004 | US6759764 Grid load logic |
| 07/01/2004 | WO2004055967A1 Ac rotary electric machine magnetic noise reduction method, motor control device and ac rotary electric machine using the same |
| 07/01/2004 | WO2004032305A3 Circuit and fault tolerant assembly including such circuit |
| 07/01/2004 | WO2002054561A3 System, method and computer program product for enhancing commercial value of electrical power produced from a renewable energy power production facility |
| 07/01/2004 | US20040128266 Method for optimizing energy consumption and cost |
| 07/01/2004 | US20040128085 Electricity meter with power supply load management |
| 07/01/2004 | US20040124814 Transformer inrush current elimination system |
| 07/01/2004 | US20040124812 Distributed resource (DR) stabilization control for microgrid applications |
| 07/01/2004 | US20040124715 Apparatus and method for resonance reduction |
| 06/30/2004 | EP1434056A2 Household appliance |
| 06/30/2004 | EP1433238A1 Method for operating a wind park |
| 06/30/2004 | CN1509410A Utility usage rate monitor |
| 06/30/2004 | CN1508962A Power control device for lifting equipment |
| 06/30/2004 | CN1508937A Fault current-limiting device for transmission and distribution electric network |
| 06/30/2004 | CN1508935A Current-limiting energy-storing circuit |
| 06/30/2004 | CN1508934A Power supply method capable of preventing illegal use |
| 06/30/2004 | CN1155973C Power distribution network incorporating a voltage support transformer and process of use |
| 06/29/2004 | US6757591 Energy management system and methods for the optimization of distributed generation |
| 06/29/2004 | US6757590 Control of multiple fuel cell power plants at a site to provide a distributed resource in a utility grid |
| 06/29/2004 | US6756702 Transport-lag compensator |
| 06/24/2004 | WO2004054081A2 Interconnecting power generation system |
| 06/24/2004 | WO2004054065A1 Uninterruptable power supply and generator system |
| 06/24/2004 | WO2004053764A1 Aggregation of distributed generation resources |
| 06/24/2004 | WO2004052073A2 Optimal feeder design in distribution system planning |
| 06/24/2004 | US20040120172 Method for coupling inverter to alternating voltage |
| 06/24/2004 | US20040120166 Vsc-converter |
| 06/24/2004 | US20040119454 Distributed system and methodology of electrical power regulation, conditioning and distribution on an aircraft |
| 06/24/2004 | DE4329103B4 Verfahren zur Zustandsestimation elektrischer Energieübertragungsnetze Method for Zustandsestimation electrical energy transmission networks |
| 06/24/2004 | CA2509493A1 Aggregation of distributed generation resources |
| 06/24/2004 | CA2508728A1 Uninterruptable power supply and generator system |
| 06/23/2004 | EP1432115A2 Variable speed wind turbine |
| 06/23/2004 | CN2621354Y Electric-saving device for lighting |
| 06/23/2004 | CN1507129A Reactive power conpensating method |
| 06/22/2004 | US6754835 Method and system for providing power fault tolerance in a network of chained computer systems through bidirectional links |
| 06/22/2004 | US6754597 Method and device for assessing the stability of an electric power transmission network |
| 06/22/2004 | US6754092 Method and apparatus for reducing power consumption for power supplied by a voltage adapter |
| 06/22/2004 | US6753792 Distribution line capacitor monitoring and protection module |
| 06/17/2004 | WO2004051827A1 A system for generating reactive power in an electric power system |
| 06/17/2004 | WO2003094414A3 Valuing and optimizing scheduling of generation assets |
| 06/17/2004 | US20040117330 System and method for controlling usage of a commodity |
| 06/17/2004 | US20040117136 Energy coordination system |
| 06/17/2004 | US20040114290 Low impedance transmission line with a power flow controller |
| 06/17/2004 | US20040112247 Electrical power storage and delivery using magnetic levitation technology |
| 06/17/2004 | DE10354925A1 System zum Kompensieren einer Spannung einer Gegenkomponente in einem Energiesystem System for compensating a voltage of a negative component in an energy system |
| 06/16/2004 | EP1429394A2 Photovoltaic power generating apparatus, method of producing the same and photovoltaic power generating system |
| 06/16/2004 | EP0974083A4 Flicker controllers using voltage source converters |
| 06/16/2004 | CN1505232A Circuit arrangement for reducing AC distribution network transient pulse |
| 06/16/2004 | CN1154382C Frame synchronization method and synchronization apparatus |
| 06/16/2004 | CN1154074C System for certified use of electrical energy |
| 06/15/2004 | US6751562 Communications architecture for intelligent electronic devices |
| 06/15/2004 | US6750633 Electrical circuit for generating a three-phase alternating current |
| 06/15/2004 | US6750391 Aternating current photovoltaic building block |
| 06/10/2004 | US20040111226 Aggregation of distributed generation resources |
| 06/10/2004 | US20040109374 Failure tolerant parallel power source configuration |
| 06/09/2004 | EP1427147A2 Electronic device operation environment presetting system and method thereof |
| 06/09/2004 | CN1503426A Method for controlling parallel operation of current transformer |
| 06/09/2004 | CN1503425A Mixing type virtual work compensator |
| 06/09/2004 | CN1503424A Mixing type virtual work compensator |
| 06/09/2004 | CN1503423A Mixing type virtual working compensator |
| 06/09/2004 | CN1503379A Solar electricity generator and mfg method, solar electricity generation system |
| 06/09/2004 | CN1502903A Control circuit for improving power factor of air conditioner |
| 06/08/2004 | US6748299 Approach for managing power consumption in buildings |
| 06/08/2004 | US6747372 Distributed control method for multiple connected generators |
| 06/08/2004 | US6747370 High-temperature secondary battery based energy storage and power compensation system |
| 06/08/2004 | US6746790 Power system including heat removal unit for providing backup power to one or more loads |
| 06/03/2004 | WO2004046833A1 A system and method for controlling and/or recording the usage of a resource by a user |
| 06/03/2004 | WO2003017030A3 Method and apparatus for using a transaction system involving fungible, ephemeral commodities including electrical power |
| 06/03/2004 | US20040107025 System and method for implementing XML on an energy management device |
| 06/03/2004 | US20040104784 Wide area network as applied to switchyard/substation control design |
| 06/02/2004 | EP1424760A2 Power management system |
| 06/02/2004 | EP1423908A1 Electrical power conservation apparatus and method |
| 06/02/2004 | CN2619394Y Three phase AC motor voltage and current synchronously correction power saver |
| 06/02/2004 | CN1502155A Conduit bushing |
| 06/02/2004 | CN1501564A Synchronous switching control device for power-supply of AC motor frequency-converter and electric power network |
| 06/02/2004 | CN1501563A Operation assisting system and operation-assisting computer program |
| 06/02/2004 | CN1501560A Multiple-output circuit device with settable power supply priority order |
| 06/02/2004 | CN1501051A Encoder apparatus and method programming with optics and graph |
| 06/02/2004 | CA2447477A1 Electronic device operation environment presetting system and method thereof |
| 06/01/2004 | US6745109 Power generator controller |
| 06/01/2004 | US6745106 Tone generating electronic device with paging module for verification of energy curtailment |
| 06/01/2004 | US6744648 Active backup power supply with power factor correction and output voltage regulation |
| 06/01/2004 | US6744239 Connection to grid type engine generator apparatus |
| 05/27/2004 | WO2004045046A1 Auxiliary power supply |
| 05/27/2004 | WO2004045044A1 A plant for the exploitation of renewable energy sources in combination with traditional energy sources, particularly for the heating and cooling of dwellings |
| 05/27/2004 | WO2004045041A1 Control device for automatic machine |
| 05/27/2004 | US20040103329 Power management system |
| 05/27/2004 | US20040100868 System and method for identifying and locating an acoustic event |
| 05/27/2004 | US20040100247 System for compensating a voltage of a negative-phase-sequence component in a power system |
| 05/27/2004 | US20040100102 Wind power plant |
| 05/27/2004 | DE202004004655U1 Circuit for supplying connectable, variable loads with even number of loads they are parallel-connected in circuit first state, while in its second state the loads are series-connected, with circuit containing controllable switches |
| 05/26/2004 | EP1198876B1 System for controlling the delivery of power to dc computer components |
| 05/26/2004 | CN1500304A Connection and method for connection of generator to electric network using same |
| 05/26/2004 | CN1151593C All-weather reactive power self-compensating stati capacitor shield |
| 05/25/2004 | US6741485 Interconnection system for transmitting power between electrical systems |
| 05/25/2004 | US6741068 Voltage stabilizer for electrical energy transportation and distribution applications |
| 05/21/2004 | WO2004042908A1 Uninterrupted power supply with power-factor correcting bypass mode |