Patents for H02J 3 - Circuit arrangements for ac mains or ac distribution networks (38,663)
09/2002
09/26/2002US20020138176 Automated aggregation and management of distributed electric load reduction
09/26/2002US20020136036 Active filter for power distribution system with selectable harmonic elimination
09/26/2002US20020135233 Power system
09/26/2002US20020135232 Method and apparatus for distributing electric power
09/26/2002DE10114570A1 Einrichtung zur unterbrechungsfreien Stromversorgung und zur Aktivfilterung Means for uninterruptible power supply and active filtering
09/25/2002EP1244203A2 Power converter circuit for generators with dynamically varying outputpower
09/25/2002EP1244193A2 Device for uninterruptible power supply and for active filtering
09/25/2002EP1242934A1 Systems for, and method of, insuring risks in a restructured energy industry
09/25/2002EP1242932A1 User interface to facilitate, analyze and manage resource consumption
09/25/2002CN2513274Y Improved passive power factor correcting circuit
09/25/2002CN2513118Y Photoelectric converting circuit of thyristor breakdown detection
09/25/2002CN2513117Y Photoelectric converting circuit of thyristor breakdown detection
09/25/2002CN1371541A Method for managing energy consumption of household appliances
09/25/2002CN1371152A Extra long distance power transmitter
09/24/2002US6456056 Interconnection protective device for generator set
09/24/2002US6456052 Universal voltage fuel dispenser
09/24/2002US6456021 Rotating variable frequency transformer with high voltage cables
09/24/2002CA2246998C Method of and device for automatically regulating three-phase voltage for power saving transformer
09/24/2002CA2219370C A plant for transmitting electric power
09/19/2002WO2002073785A1 Converter/inverter controller
09/19/2002WO2002073768A2 Connection and method for connection of a generator to an electric network using the same
09/19/2002WO2002073767A1 A network comprising compensated power cable sections
09/19/2002WO2002037638A3 Distributed energy network control system and method
09/19/2002US20020130639 Power conversion apparatus
09/19/2002US20020130558 Method and system to automatically reduce generated power
09/19/2002DE10107420A1 Electrical current and heat generation device using automobile fuel cell transfers current and heat provided by fuel cell onboard stationary vehicle to domestic installation or public distribution network
09/18/2002EP1082799B1 Power-factor correction arrangement
09/18/2002EP1038246A4 Computerized resource accounting methods and systems, computerized utility management methods and systems, multi-user utility management methods and systems, and energy-consumption-based tracking methods and systems
09/18/2002EP0900464B1 Reduction of harmonics in ac machines
09/18/2002EP0886904A4 Apparatus for and method of evenly distributing an electrical load across a three-phase power distribution network
09/18/2002CN2512008Y Output power regulating circuit
09/18/2002CN1369943A Power system monitoring system and memory medium for storing program for such system
09/17/2002US6452769 Electrical power distribution installation for electrical power system
09/17/2002US6452290 Balancing parallel inverter systems
09/17/2002US6452289 Grid-linked power supply
09/12/2002WO2002071572A1 System for providing assured power to a critical load
09/12/2002US20020128759 Power management under limited power conditions
09/12/2002US20020128749 Energy and power interchange system and its method
09/12/2002US20020128748 Configurable switchgear system
09/12/2002US20020128747 Method for running electric energy storage system
09/12/2002DE10105892A1 Wind power plant and method for operating it has overvoltage limiter during momentary interruption in power supply
09/11/2002CN1368775A Generating equipment management system
09/11/2002CN1090799C Equivalent balanced transformer
09/06/2002WO2002069471A1 Method, system and computer program for load management
09/06/2002WO2002015365A3 Energy management system and methods for the optimization of distributed generation
09/05/2002US20020123974 Electricity generation equipment management system
09/05/2002US20020123850 System and method for providing information on secondary batteries for storing electric power
09/05/2002US20020123849 Method and device for assessing the stability of an electric power transmission network
09/04/2002EP1236261A1 Voltage regulation of a utility power network
09/04/2002EP1236212A2 Capacitor bank switching
09/04/2002EP1151526B1 Power supply
09/03/2002US6445163 Battery cutoff timer
09/03/2002US6445090 Electrical equipment having energy saving mode capable of shutting off supplying of voltage to primary power supply supplying circuit under no use thereof
09/03/2002US6445089 Uninterruptible power system
08/2002
08/29/2002WO2002067401A2 Decision support for automated power trading
08/29/2002WO2002037639A3 Distributed control method for multiple connected generators
08/29/2002US20020120412 Operation and maintenance planning aiding system for power generation installation
08/29/2002US20020120368 Distributed energy network control system and method
08/28/2002EP1235322A2 Voltage stabiliser for electrical energy transportation and distribution applications
08/28/2002EP1234369A1 Method and apparatus of managing ephemeral, fungible commodities based upon real-time forward prices
08/28/2002EP1234368A1 Method and system of managing ac power networks based upon flow-gate market transactions
08/28/2002CN2508448Y Active power factor correction step-up transformer
08/28/2002CN2508447Y High-efficiency power-saver
08/28/2002CN2508446Y Reactive automatic compensation control switch of multiple high-voltage capacitor
08/28/2002CN2508445Y Numerically-controlled common electric sharing out device for building
08/27/2002US6441712 Tuned filters for electric power systems
08/23/2002CA2372848A1 Voltage stabilizer for electrical energy transportation and distribution applications
08/22/2002WO2002065611A1 Power system having generator driven by engine
08/22/2002WO2002065610A2 Method and system of coordination of consumption and/or production in distribution systems
08/22/2002US20020114356 Synchronization system and synchronization method of multisystem control apparatus
08/22/2002US20020114118 Mitigation of 3rd harmonic currents in electrical power distribution systems
08/21/2002EP1232559A1 Energy conserving motor controller
08/21/2002EP1232553A1 Electrical control system
08/21/2002EP0862808B1 An installation for power transmission by means of high-voltage direct current, comprising device for detection of a permanent ground fault
08/21/2002CN2507173Y Idle power compensator for air compressor
08/20/2002US6437996 Electrical power transmission system
08/20/2002US6437995 Control system adapted to control operation of an ac/dc converter
08/20/2002US6437626 Device for removing noise in AC power waveform
08/15/2002WO2002031940A3 Method for operating a three-wire transmission system
08/15/2002WO2002029514A3 Web bridged energy management system and method
08/15/2002WO2001071898A8 Improvements relating to converters
08/15/2002US20020111905 Power demand and supply-adjustment system and method
08/15/2002US20020110007 Permanent magnet generator and generator control
08/15/2002US20020109410 System for providing assured power to a critical load
08/15/2002US20020109409 Power energy distribution system controlling the distribution of energy
08/14/2002EP1118151B1 Electrical power transmission system
08/14/2002CN1364332A Electrical peak load distributor
08/13/2002US6433522 Fault tolerant maximum power tracking solar power system
08/13/2002US6433520 Dc power regulator incorporating high power ac to dc converter with controllable dc voltage and method of use
08/13/2002US6431323 Elevator power management system having power storage apparatus maintaining a particular charge in accordance with time of day
08/13/2002CA2150319C Control equipment for a series capacitor connected into an electric power line
08/08/2002WO2002062000A2 Adaptive controller for d-statcom in the stationary reference frame to compensate for reactive and harmonic distortion under unbalanced conditions
08/08/2002WO2002061911A1 Method and apparatus for disconnecting an electrical generator from the electricity supply
08/08/2002WO2002031944A3 A system for monitoring and controlling a plurality of electrical loads
08/08/2002US20020105816 Power center unit for electronic equipment
08/08/2002US20020105765 Apparatus and method of detecting ground fault of solar power generation system
08/08/2002US20020105306 Generator control system to accommodate a decrease in a power grid voltage
08/08/2002US20020105233 Series active filtering power line conditioner
08/08/2002US20020105231 Voltage recovery device for use with a utility power network
08/07/2002EP1229629A2 Apparatus and method of detecting ground fault of solar power generation system