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)
10/2011
10/19/2011	CN102222907A Distribution network reliability evaluation method applicable to multi-circuit identical-pole line construction
10/19/2011	CN102222906A Laminated and partitioned automatic current control method applicable to multi-target power grid
10/19/2011	CN102222902A Integral structure for movable light direct current (DC) transmission system
10/19/2011	CN102222162A Prevention control and emergent state aid decision-making method for multiple safety and stability constrains
10/19/2011	CN102221642A Power factor sampling method and power factor compensation equipment
10/19/2011	CN101635455B Method for calibrating characteristic waves of power network by utilizing clock stamp and system
10/19/2011	CN101582589B Method for optimizing active power output mode based on load margin maximization
10/19/2011	CN101048592B Method and device for preventing releasing from electric net in power plant
10/18/2011	US8041466 Method for operating a wind turbine connected to a utility grid during a utility disturbance, wind turbine and wind park
10/18/2011	US8041464 Network radiality in reconfiguration of a radial power distribution system using a matrix-structured knowledge-based system
10/18/2011	US8039997 Power supply strip for electronic equipment
10/18/2011	US8039991 Cogeneration system with first and second power plants
10/13/2011	WO2011127422A2 System and method for subsea power distribution network
10/13/2011	WO2011126661A2 Energy storage system for peak-shaving of drilling rig power usage
10/13/2011	WO2011126622A2 Thyristor gate pulses in static var compensator
10/13/2011	WO2011126221A2 Power control system by using distributed generation
10/13/2011	WO2011125954A1 Control apparatus and control method
10/13/2011	WO2011125215A1 Communication device, communication system, and vehicle
10/13/2011	WO2011125214A1 Vehicle, communication system, and communication device
10/13/2011	WO2011124657A1 A method and system for managing an electrical load of a user facility based on locally measured conditions of an electricity supply grid
10/13/2011	WO2011124470A2 Power supply system for marine drilling vessel
10/13/2011	WO2011124459A2 Onboard floating drilling installation and method for operating an onboard floating drilling installation
10/13/2011	WO2011124355A1 Power transmissions systems
10/13/2011	WO2011124298A2 Device and method for exchanging energy in a controlled manner between an electrical power network and a load
10/13/2011	WO2011124260A1 Modularised converter for hvdc and statcom
10/13/2011	WO2011124258A1 Hybrid hvdc converter
10/13/2011	WO2011124170A2 Communication power supply and control method thereof
10/13/2011	WO2011102926A3 Network centric power flow control
10/13/2011	WO2011085962A3 Method for reducing the complexity of wind turbines in the wind park network, and arrangement of a wind park
10/13/2011	WO2011059706A3 Power oscillation damping employing a full or partial conversion wind turbine
10/13/2011	WO2011023678A3 Power grid for an aircraft, and method for operating the power grid
10/13/2011	WO2011012341A3 Method for operating an electrical power supply network
10/13/2011	US20110252247 Electrical apparatus
10/13/2011	US20110248569 Apparatus and control method of micro-power source for microgrid application
10/13/2011	US20110248567 Power factor correction system
10/13/2011	US20110248565 Method and apparatus for dynamic load sharing
10/13/2011	US20110247825 System and method for subsea power distribution network
10/13/2011	DE102010014146A1 Method for voltage supply of alternate current voltage-consumer or for feeding electric power into a public power supply or mains supply, involves providing connection to public power supply and power inverter
10/13/2011	CA2793701A1 Hybrid hvdc converter
10/12/2011	EP2375561A1 Power management control system for natural energy power generation system provided with storage battery
10/12/2011	EP2375530A1 Onboard floating drilling installation and method for operating an onboard floating drilling installation
10/12/2011	EP2375529A1 Power transmission system comprising a plurality of renewable-energy turbines
10/12/2011	EP2375528A2 Energy management system, energy management apparatus, and energy management method
10/12/2011	EP2375527A2 Demand Response Method and Demand Response System
10/12/2011	EP2374192A1 Method for operation of a permanent magnet synchronous machine, and a device in an electric system comprising such a machine
10/12/2011	EP2374191A1 Method and system for transmitting electric energy
10/12/2011	EP2374190A1 System and method for protection in power installations
10/12/2011	EP2248241B1 Method and system for reducing feeder circuit loss using demand response
10/12/2011	EP1766491B1 Output power factor control of pulse-width modulated inverter
10/12/2011	CN202009355U Multifunctional digitalized and modularized energy-saving electric controller
10/12/2011	CN202009238U Reactive automatic control system aiming to distribution lines
10/12/2011	CN202009237U Fling-cut switch auxiliary circuit device of reactive compensation device
10/12/2011	CN202009236U Single-bus segmental running control device of substation
10/12/2011	CN202009235U Special-purpose passive filter circuit for single crystal furnace power supply
10/12/2011	CN202009234U Device used for reducing transformer loss
10/12/2011	CN202009233U Multifunctional integrated electric power voltage stabilizer
10/12/2011	CN202007738U Vortex type wind and light dual-purpose power generator
10/12/2011	CN102217162A Secondary battery system
10/12/2011	CN102215012A Bidirectional transformation system of solar energy and electric energy
10/12/2011	CN102214949A 垃圾发电充电站 Waste generation charging station
10/12/2011	CN102214934A Smooth wind-optical generated output control method based on megawatt-grade battery energy-storage power station
10/12/2011	CN102214933A Microcomputer multifunctional full-automatic grid connection system
10/12/2011	CN102214932A Method for distributing active power of wind-light storage transmission comprehensive power station
10/12/2011	CN102214931A Device and method for low voltage ride through of double-fed inductive wind power generator system
10/12/2011	CN102214930A Method of controling a wind turbine generator
10/12/2011	CN102214929A Grid-connected inverter
10/12/2011	CN102214928A Water photovoltaic grid-connected generating system
10/12/2011	CN102214927A Automatic-coupling continuous regulable quick reactive-power automatic compensation device
10/12/2011	CN102214926A Energy-saving alternating current power system
10/12/2011	CN102214925A Filtering device of intermediate frequency smelting furnace
10/12/2011	CN102214924A Feedforward decoupling control method based on three-phase two-arm tri-level active power quality compensator
10/12/2011	CN102214923A Active filter controller based on double-DSP (Digital Signal Processing) and FPGA (Field-Programmable Gate Array) control system
10/12/2011	CN102214922A Evaluation system of power network planning scheme
10/12/2011	CN102214921A Current waveform control method based on repetitive control strategy
10/12/2011	CN102214920A Circuit cluster-based method for analyzing grid cascading failure based on
10/12/2011	CN102214919A Aid decision making method for out-of-limit of static security analysis device
10/11/2011	US8035369 Method for detecting an isolated network
10/11/2011	US8035340 Controlling inductive power transfer systems
10/11/2011	US8035256 Switching device and a system comprising the same
10/11/2011	US8035252 Power supply system, vehicle with the same, temperature increase control method for power storage device and computer-readable recording medium bearing program for causing computer to execute temperature increase control of power storage device
10/11/2011	US8035249 Distributed maximum power point tracking system, structure and process
10/11/2011	US8035248 Systems and process for energizing loads through a control unit
10/11/2011	DE202011005048U1 Elektrische Energieverteilungsvorrichtung für ein Gebäude Electrical power distribution device for a structure
10/11/2011	CA2661753C Method of loadflow computation for electrical power system
10/06/2011	WO2011122681A1 System-stabilizing system, power supply system, method for controlling central management device, and program for central management device
10/06/2011	WO2011122672A1 Power supply system, power supply method, and control program for power supply system
10/06/2011	WO2011122669A1 Power supply system, power supply method, and control program for power supply system
10/06/2011	WO2011122517A1 Recharging system
10/06/2011	WO2011122374A1 System stabilization system, electric power demand/supply adjustment device, control device for electric power demand/supply adjustment device, electric power demand/supply adjustment method, and electric power demand/supply adjustment method using storage battery
10/06/2011	WO2011121815A1 Energy management system, energy management apparatus, and energy management method
10/06/2011	WO2011121614A2 A control system of valves for transformer cooling by using relay system
10/06/2011	WO2011091267A3 Method and apparatus for improving power generation in a thermal power plant
10/06/2011	WO2011059425A3 Improved internal electrification scheme for power generation plants
10/06/2011	US20110246259 Method of efficiently managing energy
10/06/2011	US20110241444 Load condition controlled wall plate outlet system
10/06/2011	US20110241443 Load condition controlled power strip
10/06/2011	US20110241433 Dc transmission system for remote solar farms
10/06/2011	US20110241426 Safety Device for Plug and Play Solar Energy System
10/06/2011	DE102010016233A1 Storage system for storing electrical energy generated by e.g. solar plant to charge rechargeable battery of electric car, has power supply feeding electrical energy to charging module, which is coupled with power supply
10/06/2011	DE102010013623A1 Method for transmission and storage of energy for transmission cable, involves charging capacitors with high voltages whose difference yields low voltage that is used at consumer interfaces of cable

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