Patents for H02J 3 - Circuit arrangements for ac mains or ac distribution networks (38,663)
01/2011
01/05/2011CN201699429U Water wind and light complementation interconnected power generating system
01/05/2011CN201699428U Wind energy converter grid-connection cabinet
01/05/2011CN201699427U Current compensation type AC voltage stabilizer
01/05/2011CN201699426U Self-healing type low-voltage reactive power compensating capacitor with parallel linkage protection device
01/05/2011CN201699425U Power factor controller
01/05/2011CN201699424U Universal static type energy-saving compensation device
01/05/2011CN201699423U Three-phase power voltage stabilizer with three-phase simultaneous output function and three-single-phase independent output function
01/05/2011CN201699422U Output circuit for three-phase power voltage stabilizer
01/05/2011CN201699421U Electricity-saving protector
01/05/2011CN201699420U Repetitive controller with specific times
01/05/2011CN201699419U Broadband wave trapper used for online monitoring of power transformer
01/05/2011CN201699418U Novel parallelly-connected active filter
01/05/2011CN201699417U AC input side electric power filter
01/05/2011CN201699416U Megawatt wind power storage battery combination independent power supply system
01/05/2011CN201699415U Photoelectric network
01/05/2011CN201699403U Protective device for releasing inverse power of ship hoisting equipment
01/05/2011CN201697962U Integrated intelligent testing and controlling module
01/05/2011CN201694723U Electricity economizer for intelligent handrail elevator
01/05/2011CN101939891A System and methods for scheduling power usage
01/05/2011CN101938230A Wave vibration piezoelectric power generation and solar energy combined power generating method and system
01/05/2011CN101938142A Desert synchronization photovoltaic power generating system with solar azimuth tracking device and tracking method thereof
01/05/2011CN101938141A Method for evaluating and optimizing auto generation control effect of large power network grid-connected power plant
01/05/2011CN101938140A 分布式电源系统 Distributed Power Systems
01/05/2011CN101938139A Variable frequency transformer having multiple horizontal rotary transformers and method thereof
01/05/2011CN101938138A Power management during grid faults
01/05/2011CN101938137A Wind farm and method for regulating a wind farm
01/05/2011CN101938136A Photovoltaic component DC grid-connection controller
01/05/2011CN101938135A Calculation method for reactive-power distribution of nonlinear generator set
01/05/2011CN101938134A Automatic capacitance-adjusting capacitor device
01/05/2011CN101938133A Reverse blocking type IGBT (Insulated Gate Bipolar Translator) based compensating method of PWM (Pulse-Width Modulation) control capacitance type SVC (Static Var Compensator)
01/05/2011CN101938132A Dynamic filter compensation device
01/05/2011CN101938131A Electric principle-based wind power plant cluster reactive power sharing method
01/05/2011CN101938130A High voltage filter and dynamic reactive power compensation control system combining PPF with TSC and control method thereof
01/05/2011CN101938129A Harmonic suppression device
01/05/2011CN101938128A General power-saving device
01/05/2011CN101938127A Single-phase and three-phase dual buck full-bridge parallel active power filter
01/05/2011CN101938126A Dual-buck half-bridge parallel active power filter based on hysteresis control
01/05/2011CN101938125A Network for dynamically suppressing power frequency interference of power transmission line
01/05/2011CN101938124A Matrix analysis method of power system network topology
01/05/2011CN101937543A Electric energy evaluation system and method
01/05/2011CN101937490A Planning electric network loss analyzing and computing method
01/05/2011CN101937435A Online synchronized method of distributed real-time database confronting power system
01/05/2011CN101572415B Method for controlling series voltage quality compensator
01/05/2011CN101483343B Method for identifying synthetic load equal value motor by asymmetric operation and frequency offset information
01/05/2011CN101242103B Intelligent optimization method for power system stabilizer parameter
01/05/2011CN101222140B Forecast accident power system voltage stabilization fast on-line analyzing and preventing control method
01/04/2011US7865272 Method and apparatus for preventing overloads of power distribution networks
01/04/2011US7863859 Contactless battery charging apparel
01/04/2011US7863774 Multi-output power supply
01/04/2011US7863772 Balancing current drawn from multiple power supply inputs using multiple-input inductors
01/04/2011CA2605318C Apparatus and method for reducing neutral line current using load switching method
01/04/2011CA2572682C Power flow controller responsive to power circulation demand for optimizing power transfer
12/2010
12/30/2010US20100327813 Power management topologies
12/30/2010US20100327793 Power transmission method and power transmission apparatus
12/30/2010US20100327666 Power converter for use with wind generator
12/30/2010US20100327659 System and method for over-voltage protection of a photovoltaic system with distributed maximum power point tracking
12/30/2010US20100327657 System and method for utility pole distributed solar power generation
12/30/2010US20100327655 Power supply apparatus
12/29/2010WO2010151835A2 Power distribution apparatus with input and output power sensing and method of use
12/29/2010WO2010151261A1 Systems and methods for delivering power
12/29/2010WO2010150667A1 Battery control apparatus and battery control method
12/29/2010WO2010150484A1 Cooking device, control method and programme for same
12/29/2010WO2010150168A1 Power distribution apparatus
12/29/2010WO2010150059A1 Load scheduling optimization in distributed system
12/29/2010WO2010149590A2 Method of controlling a network computing cluster providing it-services
12/29/2010WO2010148481A1 High energy density flywheel
12/29/2010EP2267860A2 Start-up source for inverter for synchonisation with the electric grid
12/29/2010EP2267859A2 Control system for a power converter and method of controlling operation of a power converter
12/29/2010EP2267858A1 Method of controlling a network computing cluster providing IT-services
12/29/2010EP2266178A1 Wind energy system having a connection protection device
12/29/2010EP1888365B1 Electric power supply system
12/29/2010CN201690412U Ceaseless intelligent power-saving device
12/29/2010CN201690241U Interconnection power generating system by using wind energy and solar energy at sea level
12/29/2010CN201690240U Grid-connected wind-solar complementary control inverter
12/29/2010CN201690239U Precision program-controlled high-current injector for super-high-voltage power transmission and transformation system
12/29/2010CN201690238U Low-voltage reactive compensation device of submerged arc furnace
12/29/2010CN201690237U Thyristor power regulator
12/29/2010CN201690236U Solid-state combination switch device
12/29/2010CN201690235U Electric structure of automatic switching solid combination switch
12/29/2010CN201690234U Device capable of self-adapting and controlling voltage reference value
12/29/2010CN201690233U Low-voltage electric network three-phase four-wire system power supply intelligent switch device
12/29/2010CN201688475U Control circuit of microwave oven
12/29/2010CN201687357U Door device of low-pressure reactive power compensation device
12/29/2010CN101933211A Method for operating a wind turbine
12/29/2010CN101931276A LC (Inductor-Capacitor) resonance energy-saving electromotor
12/29/2010CN101931241A Wind farm grid-connected coordination control method
12/29/2010CN101931240A Double-PWM vector control double-fed wind power converter
12/29/2010CN101931239A Box-type transformation unit comprising bus connecting devices
12/29/2010CN101931238A Master-slave strategy-based microgrid system coordination control method
12/29/2010CN101931237A Method for appraising voltage reactive configuring and running status of high-voltage electric distribution network
12/29/2010CN101931236A Power regulation device based on controlled silicon
12/29/2010CN101931235A Low-power full-intelligent in-situ reactive power compensation device
12/29/2010CN101931234A Dynamic harmonic suppression power-saving device
12/29/2010CN101931233A Series filter and low harmonic rectifier
12/29/2010CN101931232A Access method of rural power and power grid
12/29/2010CN101931231A Inter-bay substation automation application
12/29/2010CN101930481A Method used for generating CIM model describing power grid change in designated time slot and system thereof
12/29/2010CN101929439A Current control in a wind park
12/29/2010CN101594002B Self-healing control method for operation of urban distribution network
12/29/2010CN101577427B Detection control method of self-adapting tuning passive power filter