Patents
Sitemap › H02 - Generation, conversion, or distribution of electric power › H02J - Circuit arrangements or systems for supplying or distributing electric power; Systems for storing electric energy › H02J 3 - Circuit arrangements for ac mains or ac distribution networks
Patents for H02J 3 - Circuit arrangements for ac mains or ac distribution networks (38,663)
09/2003
09/04/2003WO2003025701A3 Utility capacity transfer system
09/04/2003US20030167105 Monitoring, controlling regenerative fuel cell; storage electricity
09/04/2003US20030165036 Anti-islanding device and method for grid connected inverters using random noise injection
09/03/2003EP1340304A2 Distributed control method for multiple connected generators
09/03/2003EP1340301A2 Distributed energy network control system and method
09/03/2003EP1282774B1 Method for operating a wind power station and wind power station
09/03/2003CN1120552C Universal controller for flexible AC transmission equipment
08/2003
08/28/2003WO2003071656A1 Power supply method and power supply system
08/28/2003WO2003071655A1 Method for monitoring decentralised power generation plants
08/28/2003US20030163224 Energy supply network and method for operating an energy supply network
08/28/2003US20030160595 Power load-leveling system and packet electrical storage
08/28/2003US20030160515 Controllable broad-spectrum harmonic filter (cbf) for electrical power systems
08/28/2003US20030160513 Power supply arrangements
08/28/2003CA2460087A1 Power supply method and power supply system
08/27/2003EP1339267A1 Redundant power supply
08/27/2003EP1339053A1 Optical power level-controlling device for reduced reproduction jitter
08/27/2003EP1338070A1 Control and supply system
08/27/2003EP1338069A2 System for correcting power factor and harmonics present on an electroduct in an active way and with high-dynamics
08/27/2003EP1337754A1 Wind energy turbine and wind farm consisting of a plurality of wind energy turbines
08/27/2003CN2569504Y Automatic voltage drop controller for road lamp
08/27/2003CN2569423Y Active stand-by power source device with power factor compensation and regulating power output
08/27/2003CN2569414Y Harmonic wave comprehensive suppressor
08/27/2003CN1438749A Series capacitor compensating device capable of inhibiting sub-syuchronous resonance of electric network
08/26/2003US6611438 Power generation apparatus using permanent-magnet generator
08/26/2003US6611437 Power generation apparatus using permanent-magnet generator
08/26/2003US6611068 Power system
08/21/2003WO2003069759A1 Power source switching unit and power source management system comprising it
08/21/2003WO2003069758A1 Power generator and system comprising it
08/21/2003WO2003069757A1 Equipment and method for exchanging power, in shunt connection, with an electric power network, and use of such equipment
08/21/2003WO2003001645A3 Method of monitoring a high voltage grid power system
08/21/2003US20030158632 System and method for monitoring and controlling energy distribution
08/21/2003US20030158631 Electricity charge management apparatus and its recording medium
08/21/2003US20030155893 Electrical circuit for generating a three-phase alternating current
08/21/2003US20030155811 Remote input/output device
08/21/2003US20030155773 Method for operating a wind power station and wind power station
08/20/2003EP1153379A4 Modular power quality monitoring device
08/20/2003CN2567851Y Low-differential uniform current apparatus for contravariant power-supply output parallelling
08/20/2003CN1437784A Method and apparatus for multifrequency power distribution
08/20/2003CN1437684A Method for operating wind power station and wind power station
08/20/2003CN1437310A Great-power switching voltage regulator with no electromagnetic pollution
08/20/2003CN1437294A Circuit for maintaining voltage on DC side in balance
08/20/2003CN1437205A High-voltage AC combined throw in/off switch
08/20/2003CN1118914C Autocontrol method for reactive voltage of local electric power network
08/20/2003CA2418192A1 Remote input/output device
08/19/2003US6609048 Power amount control method
08/19/2003US6608406 Rack mountable power distribution apparatus
08/19/2003US6608403 Power supply system with AC redundant power sources and DC redundant power supplies
08/19/2003US6608392 Method for installing and removing automatic lift-type mobile facility, method of automatic lift-type power generation, and automatic lift-type mobile facility
08/14/2003WO2003067358A2 Voltage source and current source with capacitor
08/14/2003WO2003025898A9 Utility monitoring and management system
08/14/2003WO2003023799A3 Uninterruptible transfer switch
08/14/2003US20030151309 Power allocation control in an overdemand situation of an airport support system
08/13/2003CN2566517Y High efficient power energy-saving device
08/13/2003CN1436328A Control circuit for sequentially switching electrical loads
08/13/2003CN1435931A Transformer substation system
08/13/2003CN1118121C Compensation device and power transmission system using compensation device
08/12/2003US6605882 Integrated harmonic mitigation device and distribution panel configured as a power center unit for electronic equipment
08/12/2003US6605881 AC interconnection apparatus supplying AC power from a commercial power system and from a solar cell
08/12/2003US6605880 Energy system providing continual electric power using wind generated electricity coupled with fuel driven electrical generators
08/07/2003WO2003042892A8 Electronic trading confirmation system
08/07/2003WO2002078158A3 Active filter for power distribution system with selectable harmonic elimination
08/07/2003US20030147191 Device and method for detecting islanding operation of a static power source
08/07/2003US20030146731 Synchronous compensation
08/06/2003EP1332546A1 A power load-leveling system and packet electrical storage
08/06/2003EP0885477B1 Balancer executed with z-connected windings
08/06/2003CN2565179Y Premounted integrated protector for transformer substation
08/06/2003CN1117423C Power converting system
08/05/2003US6603290 Anti-islanding detection scheme for distributed power generation
08/05/2003US6603218 Method, system and device for managing the consumption of electric energy in a domestic environment
08/05/2003US6603217 Semiconductor circuit device having hierarchical power supply structure
07/2003
07/31/2003WO2003062018A2 Vehicle
07/31/2003WO2003032429A3 Method and system for bridging short duration power interruptions
07/31/2003US20030144864 System and method for creating and operating an enhanced distributed energy network or virtual power plant
07/31/2003US20030144803 Substation system
07/31/2003US20030144802 Method for the identification of weak and/or strong branches of an electric power transmission system
07/30/2003CN2563809Y Intelligent reactive compensation controller
07/30/2003CN2563808Y Low voltage reactive power automatic generator
07/30/2003CN1433117A Automatic circulating throw-in throw-off controller for low-voltage capacitor sets
07/29/2003US6601002 Arrangements to detect and respond to disturbances in electrical power systems
07/29/2003US6600973 Method and apparatus for providing power to a utility network
07/24/2003US20030139939 Business management system and method for a deregulated electric power market using consumer site anomaly detection
07/24/2003US20030139887 Method for the identification of weak and/or strong nodes of an electric power system
07/23/2003EP1330007A2 Demand control apparatus and power distribution control system
07/23/2003EP1330006A1 Powersupply-network and method for operating it
07/23/2003EP1329012A1 Method and system of coordination of consumption and/or production in distribution systems
07/23/2003EP1040260B1 Constant turbine inlet temperature control of a microturbine power generating system
07/23/2003EP0896269B1 Method and device for automatically switching three-phase voltage for power saving transformer
07/23/2003EP0882321B1 A device for control of controller equipment for the purpose of damping of oscillations in a power line
07/23/2003CN2562474Y Adjustable capacitor devices
07/22/2003US6598029 Bidding for energy supply with request for service
07/17/2003WO2003058789A1 Power grid connection system for a wind turbine generator
07/17/2003WO2003058386A2 System and method for residential emissions trading
07/17/2003WO2003058259A2 Method and apparatus for preventing overloads of power distribution networks
07/17/2003US20030132028 Arrangement for the removal of cuttings and gas arising from drilling operations
07/17/2003CA2471939A1 System and method for residential emissions trading
07/17/2003CA2471689A1 Method and apparatus for preventing overloads of power distribution networks
07/16/2003CN2561159Y Electromagnetic interference wave filter for power source supplier
07/16/2003CN2561151Y Capacitor-embedded terminal box
07/16/2003CN1430322A Sine wave inverter capable of parallel operation
07/15/2003US6593668 Method and apparatus for multifrequency power distribution
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