Patents for H02J 3 - Circuit arrangements for ac mains or ac distribution networks (38,663)
04/2012
04/12/2012WO2012046455A1 Electrical equipment control device, electrical equipment control method and electrical equipment
04/12/2012WO2012046381A1 Power generation system and method for operating power generation system
04/12/2012WO2012045596A1 Household appliance having a controller for an electrical energy supply network having an associated data network and method for operating a controller of a household appliance on said energy supply network
04/12/2012WO2012045231A1 A power control circuit and method for stabilizing a power supply
04/12/2012WO2012008979A3 Dynamic distributed power grid control system
04/12/2012WO2012000517A3 Operating a wind power plant including energy storage during grid faults
04/12/2012WO2011117361A3 Solar inverter for an extended insolation value range and operating method
04/12/2012WO2011033352A8 Power distribution system
04/12/2012US20120086272 Remotely power-controllable power outlet device and power outlet thereof
04/12/2012US20120086268 Power feeder and power feeding system
04/12/2012US20120085612 Vehicle propulsion energy and utility power delivery system
04/12/2012DE102010047652A1 Photovoltaikanlage mit Wechselrichterbetrieb in Abhängigkeit der Netzspannung Photovoltaic system with inverter operation depending on the mains voltage
04/12/2012DE102010042298A1 Inverter for photovoltaic system attached to building, has weather data determination unit to determine weather and provide data to control device that controls electrical load in building, based on determined weather data
04/12/2012CA2810993A1 Thermal energy storage apparatus, controllers and thermal energy storage control methods
04/11/2012EP2439830A1 System stabilization device, method, and wind-power generation system
04/11/2012EP2438668A2 Improved internal electrification scheme for power generation plants
04/11/2012EP2438667A1 Transportable modular multi-appliance device
04/11/2012EP1478073B1 System for monitoring and maintaining the provision of electrical power
04/11/2012CN202190248U Mobile air conditioner compressor circuit
04/11/2012CN202190153U 一种谐波励磁发电机 Harmonic excitation generator
04/11/2012CN202190125U Automatic voltage and reactive power control device for regional power grid
04/11/2012CN202190100U 一种直流屏的电池放电装置 A DC-screen battery discharge device
04/11/2012CN202190087U Distributed electric automobile charging system capable of supplying multi energy sources
04/11/2012CN202190085U 变压器试验发电机串联扩大容量运行结构 Transformer Test series to expand the capacity of the generator run structure
04/11/2012CN202190084U 一种电力输运系统的变压器自动投切装置 A power transformer transport system, automatic switching devices
04/11/2012CN202190083U 一种集中式风电场低电压穿越系统装置 A centralized system of wind farms across the low voltage devices
04/11/2012CN202190082U Intelligent electricity economizer designed for motors
04/11/2012CN202190081U Reactive compensation device
04/11/2012CN202190080U Infrared wireless control technology for reactive compensation systems
04/11/2012CN202190079U Single phase voltage boosting device with multi-input/multi-output throw switch
04/11/2012CN202190078U 一种末端电压补偿装置 A terminal voltage compensation device
04/11/2012CN202190077U Multi-path paralleling apparatus for same-order filtering loops in low voltage filtering compensation equipment
04/11/2012CN202190076U 综合节电器 Integrated Power Saver
04/11/2012CN202187863U Cascade type direct driven wind generator
04/11/2012CN102414952A Improved frequency control
04/11/2012CN102414951A Demand and supply control apparatus, demand and supply control method, and program
04/11/2012CN102414950A Methods and systems for no-break power transfer with a converter
04/11/2012CN102412600A 双馈式风力发电机组低电压穿越的动态电阻及其控制方法 Dynamic resistance and double-fed wind turbine control method of low voltage ride
04/11/2012CN102412599A 一种双馈风力发电系统低电压穿越用Crowbar装置 A dual-fed wind power generation system with low voltage ride through Crowbar device
04/11/2012CN102412598A Minitype intelligent bidirectional self-adaptation grid-connected photovoltaic power generation system and control method thereof
04/11/2012CN102412597A Low voltage ride through control method and device for a double-fed wind power generation system
04/11/2012CN102412596A Equivalent simulation method for grid-connected photovoltaic power generation system
04/11/2012CN102412595A 控制微网与大电网之间的连接的方法 Methods to control micro-grid connected between the large grid
04/11/2012CN102412594A 微网系统的控制方法 The control method of micro-grid system
04/11/2012CN102412593A Grid-connected generation control method for photovoltaic power generation converter
04/11/2012CN102412592A Island detection method and system of photovoltaic grid-connected generation system
04/11/2012CN102412591A 基于负序功率正反馈的孤岛检测方法 Negative sequence power islanding detection method based on positive feedback
04/11/2012CN102412590A Modular direct-current grid connection topology comprising energy storing device for wind power station group
04/11/2012CN102412589A 一种实现次同步谐振控制的方法及系统 A sub-synchronous resonance control implementation method and system
04/11/2012CN102412588A 一种实现次同步谐振控制的方法及系统 A sub-synchronous resonance control implementation method and system
04/11/2012CN102412587A Reactive compensation system based on GPRS (General Packet Radio System)
04/11/2012CN102412586A Reactive compensation sampling measuring system
04/11/2012CN102412585A Controller capable of converting magnetic properties of two phases of iron core, as well as controlling method thereof
04/11/2012CN102412584A Integrated intelligent adjustment and compensation capacitor bank
04/11/2012CN102412583A Excitation control box for magnetically controlled reactor
04/11/2012CN102412582A High-low voltage hybrid filter compensation device
04/11/2012CN102412581A Novel low-voltage dynamic filter compensation device
04/11/2012CN102412580A Active power filter self-adaptive fuzzy control system and method
04/11/2012CN102412579A 一种基于快速傅里叶变换的谐波电流补偿方法 A harmonic current compensation method based on Fast Fourier Transform
04/11/2012CN102412578A Laboratory microgrid system
04/11/2012CN102412577A 无断点运行节电装置 No breakpoints run saving devices
04/11/2012CN102412576A Self-walking medium-sized recreational vehicle power system and power supply method thereof
04/11/2012CN102412575A 送端电网高频切机安全自动装置配置方案的仿真评估方法 Simulation and evaluation methods to send high-frequency end of the grid cutting machine automatic safety device configuration scheme
04/11/2012CN102412574A 一种配电网重构算法 Distribution Network Reconfiguration Algorithm
04/11/2012CN102412571A Bus short circuit current limiter for parallel compensation power grid
04/11/2012CN102412544A Power-uninterrupted ice melting and SVG-type reactive static compensation compound device and use method thereof
04/11/2012CN102411729A Wind power prediction method based on adaptive linear logic network
04/11/2012CN101764409B 一种电压无功功率综合控制系统测试装置 One kind of voltage and reactive power integrated control system testing device
04/11/2012CN101710702B Method for realizing dynamic energy-saving distribution of electrical power system
04/11/2012CN101438476B 新的能量发电系统输出起伏缓和装置 The new energy power generation system output fluctuation relaxation device
04/11/2012CN101368543B 垂直向上流动的气能发电装置 Vertical upward flow of air power devices
04/11/2012CN101346870B 向负载传输放大了的谐振功率的电路 To the load transmission amplified resonant power circuit
04/10/2012US8154890 Inverter apparatus with control and voltage-sag circuitry to quickly restart when recovering from a mini power failure
04/10/2012US8154250 Battery charging controller and battery module using the same
04/10/2012CA2467986C Device with controllable impedance
04/05/2012WO2012044542A1 Powerline communication power supply and modem interface
04/05/2012WO2012044369A1 Coordinated control of multi-terminal hvdc systems
04/05/2012WO2012044058A2 Voltage management system and method
04/05/2012WO2012043938A1 System and method for controlling power flow
04/05/2012WO2012043919A1 Power conversion system for energy storage system and controlling method of the same
04/05/2012WO2012043917A1 Apparatus and method for controlling distributed power
04/05/2012WO2012043639A1 Power supply system
04/05/2012WO2012043636A1 Power supply system
04/05/2012WO2012043529A1 System connection device and system connection system
04/05/2012WO2012043528A1 System connection device and system connection system
04/05/2012WO2012043138A1 Power source system
04/05/2012WO2012041543A1 Power oscillation damping controller
04/05/2012WO2012041527A1 Power oscillation damping by a converter-based power generation device
04/05/2012WO2012041317A2 Photovoltaic power plant
04/05/2012WO2012000515A3 Controlling a wind power plant transformer
04/05/2012WO2011085961A3 Method and device for synchronizing a generator in a network
04/05/2012WO2011039552A3 Method for minimizing neutral point voltage of a three-phase electric network
04/05/2012US20120083935 Decoupling controller for power systems
04/05/2012US20120081932 Control method and system for reducing the common-mode current in a power converter
04/05/2012US20120080943 Photovoltaic Power Systems
04/05/2012US20120080420 Power control circuit and method for stabilizing a power supply
04/05/2012DE102010051767A1 Module für ein aktives Netzfilter und aktives Netzfilter Modules for active power filters and active power filter
04/05/2012CA2812708A1 Power oscillation damping controller
04/05/2012CA2812627A1 Power oscillation damping by a converter-based power generation device
04/04/2012EP2437383A2 Modules for active mains filter and active mains filter