Patents for H02J 3 - Circuit arrangements for ac mains or ac distribution networks (38,663)
11/2003
11/27/2003WO2003076857A3 A domestic combined heat and power unit
11/27/2003WO2003007120A3 A system and method for creating and operating an enhanced distributed energy network or virtual power plant
11/27/2003US20030220864 Apparatus for market dispatch for resolving energy imbalance requirements in real-time
11/27/2003US20030220752 Apparatus and system for protection, control, and management of electricity distribution systems using time synchronization
11/27/2003US20030220720 Green power supply system and green power supply method
11/27/2003US20030220719 Method and apparatus for centrally-controlled electrical protection system architecture reliability improvement based on sensitivity analysis
11/27/2003US20030218888 Power conversion apparatus, power conversion system, and islanding operation detection method
11/27/2003US20030218848 Monitoring and control for power electronic system
11/27/2003US20030218839 Control arrangement and isolated power supplies for power electronic system
11/26/2003EP1364454A1 Mobile power generation system
11/26/2003EP1364325A2 Systems and methods for trading electrical transmission rights
11/26/2003CN2588651Y Electric motor compensation capacitor capable of being installed in switch box
11/26/2003CN2588642Y Electric device capable of inhibiting electromagnetic noise leakage
11/26/2003CN1458820A Electromagnetic wave eliminator for electric equipment
11/26/2003CN1458819A Electromagnetic wave radiation preventer for electric equipment
11/25/2003US6653751 Fault tolerant AC transfer switch
11/20/2003WO2003096511A1 Power supply system for island networks
11/20/2003WO2003084041A9 Power conversion system and method of converting power
11/20/2003WO2003073576A3 Method and apparatus for ground fault protection
11/20/2003WO2003038970A3 Anti-islanding techniques for distributed power generation
11/20/2003WO2003017724A3 Power and/or energy monitor, method of using, and display device
11/20/2003US20030216994 Historical database system for resolving energy imbalance requirements in real-time
11/20/2003US20030216971 User interface for a system using digital processors and networks to facilitate, analyze and manage resource consumption
11/20/2003US20030216876 Method and apparatus for ground fault protection
11/20/2003US20030216818 Method for driving appliances and household appliance with energy management
11/20/2003US20030214907 Method for communicating information bundled in digital message packets
11/20/2003US20030214823 Power generation apparatus using permanent-magnet generator
11/20/2003US20030214366 Power discriminating systems.
11/19/2003EP1363219A1 Price evaluation system and method for derivatives, risk management system and method for power exchange
11/19/2003EP1362402A2 Power conversion apparatus, power conversion system, and islanding operation detection method
11/19/2003EP0888661B1 An electric high voltage ac generator
11/19/2003EP0864194B1 Polyphase static var compensator arrangement
11/19/2003CN2587102Y Power supply filter
11/19/2003CN1457123A Intelligent distributing and transforming devices
11/19/2003CN1128498C Thyristor power-regulating system for temperature control system of heating equipment
11/18/2003US6650557 18-pulse rectification system using a wye-connected autotransformer
11/13/2003WO2003094414A2 Valuing and optimizing scheduling of generation assets
11/13/2003WO2003094321A1 Single input multiple output electrical connector devices
11/13/2003US20030212835 Method and system for external clock to obtain multiple synchronized redundant computers
11/13/2003US20030212515 Data sample and transmission modules for power distribution systems
11/13/2003US20030212514 System and method for reliability assessment of a power system having integrated modules
11/13/2003US20030212513 Configuring a centrally controlled circuit breaker protection system
11/13/2003US20030212512 Apparatus and system for protection, control, and management of electricity distribution systems over a network
11/13/2003US20030212473 Processing system for a power distribution system
11/13/2003US20030210055 Control arrangement for power electronic system
11/13/2003US20030209996 Dimmer having a thermally insulated faceplate fastener
11/12/2003EP1361639A1 Power system having generator driven by engine
11/12/2003EP1020006B1 Synchronous compensator plant
11/12/2003CN2586280Y Monitoring control instrument of distribution transformer
11/12/2003CN1455487A Method of generating reactive power for increasing generation capacity in wet season for low-capacity hydro-power plant
11/12/2003CN1127792C Power system
11/06/2003US20030208437 Method and systems supporting trading of fungible ephemeral commodities and fungible non-ephemeral commodities incorporating transmission contracting
11/06/2003US20030205938 Integrated protection, monitoring, and control system
11/05/2003CN2585466Y Dynamic reactive compensation equipment for each phase power
11/05/2003CN2585465Y Electric power capacity switching module
11/05/2003CN2585464Y Harmonic wave, idle work, negative sequence comprehensive administration device for complex power system
11/05/2003CN1453919A Solution to preventing power system from collapse in case of catastrophe
11/05/2003CN1127188C Controllable serial capacitor compensation dynamic analog apparatus
11/05/2003CN1127006C Method and device for automatically switching three phase voltage for power saving transformer
11/04/2003US6643154 Control of extinction angle for a line-commutated converter
11/04/2003US6642683 Controller and associated drive assembly for power sharing, time sliced control of a brushless direct current motor
11/04/2003CA2388509C Method for operating a wind farm
10/2003
10/30/2003WO2003090328A1 Method and system for on-line dynamical screening of electric power system
10/30/2003WO2003090038A2 Automatic energy management and energy consumption reduction, especially in commercial and multi- building systems
10/30/2003WO2002084839A3 Generating electricity
10/30/2003WO2002067401A3 Decision support for automated power trading
10/30/2003US20030204756 Push communications architecture for intelligent electronic devices
10/30/2003CA2483188A1 Method and system for on-line dynamical screening of electric power system
10/30/2003CA2478667A1 Automatic energy management and energy consumption reduction, especially in commercial and multi-building systems
10/29/2003EP1356567A1 Method and apparatus for disconnecting an electrical generator from the electricity supply
10/29/2003EP1356566A1 System of transport and distribution of energy to voltage inclusive between 600v and 1200v
10/29/2003CN2583855Y Fully automatic electric energy-saving device
10/29/2003CN1451969A Electric energy managing network apparatus
10/29/2003CN1126242C System stabilizer for power generating system
10/29/2003CN1126240C Supply unit for electronic machine
10/29/2003CN1126220C Automatic power factor compensation device for high and low voltage power network
10/29/2003CN1126219C Modularized parallet extended, unified controlled active power filter
10/28/2003US6639816 Power supply system with AC redundant power sources and safety device
10/28/2003US6639331 Parallel generator power system
10/23/2003US20030200010 Method and system for on-line dynamical screening of electric power system
10/23/2003US20030197431 Automatic transfer switch for microturbine and method of operation
10/23/2003US20030197429 Ac interconnection apparatus for supplying ac power from a commercial power system and from a solar cell
10/23/2003DE10022974C2 Verfahren zum Betreiben einer Windenergieanlage sowie Windenergieanlage A method for operating a wind turbine and wind turbine
10/22/2003CN2582247Y Pulse photo-electric conversion circuit for high-voltage, static type dynamic reactive-load power compensation equipment
10/22/2003CN1450706A Automatic master-slave parallel control method for sine pulse width modulation inverter power supply
10/22/2003CN1450705A Method and device for controlling parallel power sources
10/22/2003CN1450704A Method for compensating dynamic three-phase imbalance load and compensator
10/22/2003CN1450703A stand-by energy-saving circuit
10/22/2003CN1450578A Method for mains-synchronous switching of circuit breakers, and apparatus for carrying out this method
10/21/2003US6636893 Web bridged energy management system and method
10/21/2003US6636784 Electricity transfer station
10/21/2003US6636405 Mitigation of 3rd harmonic currents in electrical power distribution systems
10/16/2003WO2003085798A2 Energy management system
10/16/2003WO2003058259A3 Method and apparatus for preventing overloads of power distribution networks
10/16/2003WO2003036688A3 Alternating current photovoltaic building block
10/16/2003US20030193243 Next connect electrical receptacle assembly
10/15/2003EP1353424A1 Switchgear equipment for distributing electric energy
10/15/2003CN2580656Y High voltage dynamic reactive-load compensation equipment
10/15/2003CN2580655Y Passive three-phase filter circuit
10/15/2003CN2580654Y Passive single-phase filter circuit