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)
09/2011
09/06/2011	CA2561506C Self powered gate driver system
09/05/2011	DE202011003799U1 Vorrichtung zur Stromversorgung Device for power supply
09/01/2011	WO2011105589A1 Power conversion apparatus, grid connection apparatus, and grid connection system
09/01/2011	WO2011105580A1 Charging system, charge/discharge control apparatus, and charge/discharge control method
09/01/2011	WO2011105070A1 Demand and supply control apparatus, demand and supply control method, and program
09/01/2011	WO2011104285A1 Method for compensating for fluctuations in the power output and a corresponding converter system and wind energy installation
09/01/2011	WO2011104273A2 Method and control arrangement for controlling a reactive power source
09/01/2011	WO2011104270A2 Wind turbine controller applying differential pole control algorithm
09/01/2011	WO2011104219A2 Power distribution method and device
09/01/2011	WO2011103950A1 Device and method for integrating electric devices into a system in the context of demand-side management
09/01/2011	WO2011103887A1 Control device for small networks
09/01/2011	WO2011068368A3 Power control method and device
09/01/2011	US20110210615 Motor starting and switching
09/01/2011	US20110210612 Inverter for photovoltaic systems
09/01/2011	US20110210608 System and method for a single stage power conversion system
09/01/2011	DE102009007797B4 Elektrische Versorgung einer Federdruckbremse Electrical supply a safety brake
08/2011
08/31/2011	EP2362521A2 Power generation frequency control
08/31/2011	EP2362520A1 Inverter for photovoltaic systems
08/31/2011	EP2362519A2 System and Method for a Single Stage Power Conversion System
08/31/2011	EP2362518A2 Battery system
08/31/2011	EP2362517A2 Power storage system
08/31/2011	EP2362516A1 Device for reducing the power consumption of appliances
08/31/2011	EP2362515A1 Control method for single-phase grid-connected LCL inverter
08/31/2011	EP2361454A2 Short-term load forecasting based capacity check for automated power restoration of electric distribution networks
08/31/2011	EP2238665B1 Method for operating a wind turbine
08/31/2011	EP2027637B1 Method and device for determining the electrical loadability of overhead lines by means of temperature measurement
08/31/2011	CN201957289U Energy-saving aging device for LED lighting sources
08/31/2011	CN201956967U 三相注塑机变频储能节电设备 Three-phase injection molding machine frequency energy storage energy-saving equipment
08/31/2011	CN201956961U 基于功率单元级联型高压变频器的能量回馈装置 Based on high-voltage inverter power unit cascaded energy feedback device
08/31/2011	CN201956940U Novel quasi-grid-connected wind photoelectric complementary power station
08/31/2011	CN201956922U 带有前馈控制的光伏逆变器 Feedforward control with PV inverters
08/31/2011	CN201956908U 一种变流器控制装置 A variable flow control device
08/31/2011	CN201956896U 一种高功率因数中频电源滤波装置 A high power factor, frequency power supply filtering means
08/31/2011	CN201956843U 同心式双定子结构的直驱笼型异步风力发电机系统 Direct drive wind generator systems cage asynchronous dual concentric stator structure
08/31/2011	CN201956751U Reactive power control integrated protector with relay protection function
08/31/2011	CN201956702U 一种微机自动同期并列装置 Microcomputer automatic synchronization device
08/31/2011	CN201956701U Single house type AC (Alternating Current)/DC (Direct Current) mixing microgrid
08/31/2011	CN201956700U 用于风力发电机组的双馈变频器通信系统 For double-fed wind turbine inverter communication system
08/31/2011	CN201956699U 双馈风力发电机的变流装置控制系统 Deflector control system for double-fed wind generator
08/31/2011	CN201956698U 用电负荷不平衡智能补偿装置 Smart electricity load unbalance compensation device
08/31/2011	CN201956697U 一种小功率机组三相负载平衡器 A small, three-phase power unit load balancer
08/31/2011	CN201956696U 矿热炉动态零电压电容投切开关 Submerged arc furnace dynamic zero-voltage capacitor switching switch
08/31/2011	CN201956695U 变负载节能控制装置 Variable load energy-saving control device
08/31/2011	CN201956694U 动态无功补偿装置 Dynamic reactive power compensation device
08/31/2011	CN201956693U 高压无功补偿装置 High-voltage reactive power compensation device
08/31/2011	CN201956692U 功率自动校正装置及系统 Automatic power correction device and system
08/31/2011	CN201956691U 无功补偿装置开关 Reactive power compensation device switches
08/31/2011	CN201956690U 高性能无功补偿综合控制装置 High-performance integrated control of reactive power compensation device
08/31/2011	CN201956689U Bypass structure of chain link unit of static synchronous compensator
08/31/2011	CN201956688U Movable static synchronous compensator with modular structure
08/31/2011	CN201956687U 用于直流电动钻机的全有源动态谐波抑制及无功补偿系统 DC electric rigs for full active dynamic harmonic suppression and reactive power compensation system
08/31/2011	CN201956686U Active power filtering device
08/31/2011	CN201956685U High input and output insolation filter
08/31/2011	CN201956684U Shunting power supply filter for single input and multiple outputs
08/31/2011	CN201956609U 针对电网消谐改造的中置柜 For grid harmonic elimination transformation center cabinet
08/31/2011	CN201953572U Direct-driven switched reluctance wind power generator system with concentric two-stator structure
08/31/2011	CN102170255A Motor starting device
08/31/2011	CN102170241A System and method for a single stage power conversion system
08/31/2011	CN102170170A Wind-power adsorption connected large-power-grid scheduling rolling planning method
08/31/2011	CN102170167A Device for providing DC (direct-current) voltage for DC voltage bus through line parallel and electrical connection of photoelectric modules
08/31/2011	CN102170165A Thunder and lightning utilization system
08/31/2011	CN102170150A 蓄电系统 Power storage system
08/31/2011	CN102170143A Microcomputer automatic quasi-synchronization paralleling realization method
08/31/2011	CN102170142A Low-voltage ride-through method for photovoltaic inverter
08/31/2011	CN102170141A Method and area electric power system detecting islanding by employing controlled reactive power injection by a number of inverters
08/31/2011	CN102170140A Method for starting flexible high-voltage direct-current (HVDC) system of modularized multi-level converter
08/31/2011	CN102170139A Topology of series connection type voltage transient variation compensation circuit and control method thereof
08/31/2011	CN102170138A Large-scale energy storage method based on electricity-aluminium-hydrogen circulating system
08/31/2011	CN102170137A ORP (optimal reactive power) method of distribution network of electric power system
08/31/2011	CN102170136A Power station voltage reactive power master-slave double-command control method
08/31/2011	CN102170135A 35KV large capacity reactive compensation and harmonic suppression integrated system and control method thereof
08/31/2011	CN102170134A Microgrid synchronization and off-grid control method and seamless switching method
08/31/2011	CN102170133A Double-tuned filter suitable for automatic tracking and compensation arc extinguishing coil complete equipment
08/31/2011	CN102170132A Current tracking control method for three-phase voltage type converter
08/31/2011	CN102170131A Limit power calculating method of associated electricity transmission cross-section based on parallel calculating model
08/31/2011	CN102170130A Short-term wind power prediction method
08/31/2011	CN102170129A Low-carbon dispatching method and device for electric power system based on large-scale wind power grid connection
08/31/2011	CN102170128A Method and system for dynamic optimization control of electric power system
08/31/2011	CN102170127A Method for locating prime motor disturbance source triggering forced power oscillation
08/31/2011	CN102170126A Online analysis and early warning method for low-frequency oscillation of electric power system
08/31/2011	CN102170125A Power checking method
08/31/2011	CN102170124A Early warning method of stable-state index of power quality
08/31/2011	CN102170112A Three-phase photovoltaic inverter anti-islanding method based on phase angle deviation positive feedback
08/31/2011	CN102168652A 风力发电系统及其控制方法 Wind power generation system and control method
08/31/2011	CN101710715B System and method for controlling low voltage ride through of double-feed induction wind driven generator in power grid voltage instantaneous drop
08/31/2011	CN101697415B Power transfer solving method under grid failure state
08/31/2011	CN101697414B Universal controller for power electronic devices of distributed generation systems
08/31/2011	CN101651342B Method for directionally controlling section tidal current based on direct current factor table
08/31/2011	CN101615807B Stepless rapid phase-control reactive power dynamic compensation device and compensation method thereof
08/31/2011	CN101615482B Continuous adjustable iron-core reactor
08/31/2011	CN101588072B Novel energy-saving power regulator
08/31/2011	CN101507076B Power converter arrangement and method
08/31/2011	CN101436790B On-line splicing and coalition method for electric network model containing complex T connection line
08/31/2011	CN101383512B Method for suppressing transient voltage jitter by static reactive compensator
08/31/2011	CN101350524B Computation method capable of tracking Davinan equivalence parameter base on total differential equation
08/31/2011	CN101291067B Graphic method for synchronous checking
08/31/2011	CN101291065B Linear harmonic suppressing apparatus in low voltage distributing network
08/31/2011	CN101267116B An automatic positioning method for power quality interference source of distribution grid
08/30/2011	US8010823 Power supply with integrated uninterruptible power control
08/30/2011	US8010010 Energy storage device, image forming apparatus including energy storage device, and discharge control method

1 ... 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 ... 387