| Patents for H02J 3 - Circuit arrangements for ac mains or ac distribution networks (38,663) |
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| 05/02/2012 | CN102437591A Method and system for automatically sensing sunlight of grid-connected inverter |
| 05/02/2012 | CN102437590A Variable-speed constant-frequency wind power generation system of alternative-current excitation double-feed generator |
| 05/02/2012 | CN102437589A Equal power distribution control method of multiple parallel single-phase inverters for solar power generation |
| 05/02/2012 | CN102437588A Energy feedback system |
| 05/02/2012 | CN102437587A Island detection method of high-power photovoltaic grid-connected converter |
| 05/02/2012 | CN102437586A Energy storage and unloading device of wind power generation system and control method thereof |
| 05/02/2012 | CN102437585A Ni-MH battery energy storage monitoring system |
| 05/02/2012 | CN102437584A System and method for applying electric automobile as mobile energy storage device in smart power grid |
| 05/02/2012 | CN102437583A Analogue phase-shift current generator |
| 05/02/2012 | CN102437582A Latent series compensation device |
| 05/02/2012 | CN102437581A Capacitor platform for series compensator |
| 05/02/2012 | CN102437580A Reactive power capacitor compensator |
| 05/02/2012 | CN102437579A Low-voltage reactive compensation device |
| 05/02/2012 | CN102437578A Power supply mode selection method of area without electricity supply based on load distance and load characteristic |
| 05/02/2012 | CN102437577A Control circuit used in active power filter (APF) |
| 05/02/2012 | CN102437576A Active power filter (APF) controller and control method thereof |
| 05/02/2012 | CN102437575A Medium-and-high-voltage unified power quality controller (UPQC) without transformer |
| 05/02/2012 | CN102437574A Association analysis method using parasitic parameters of capacitor-reactor series circuit |
| 05/02/2012 | CN102437573A Evaluation and control method and system for reliability of electric distribution network based on fuzzy modeling |
| 05/02/2012 | CN102437572A Power flow control system |
| 05/02/2012 | CN102437571A Physical modeling system with wind power generation, photovoltaic power generation and energy storage integration system |
| 05/02/2012 | CN102437570A Simulation running system and reliability determining method of neutral current inhibiting device of transformer |
| 05/02/2012 | CN102437569A Electric device, power management system including the electric device, and method for controlling the same |
| 05/02/2012 | CN102437528A Cabinet body of modularized drawer-type low-voltage reactive compensation device |
| 05/02/2012 | CN102436910A Four-winding transformer for wind power generation converter test and full-power circumfluent test method |
| 05/02/2012 | CN102434373A Speed controller intelligent starting control method based on pumped-storage set |
| 05/02/2012 | CN102434359A Semi-submersible type power generating set floating on water and suitable for stream flows in river channel and using method |
| 05/02/2012 | CN101945030B Communication method for monitoring inverter on basis of MODBUS protocol |
| 05/02/2012 | CN101807799B Super capacitor energy storage type power quality compensator |
| 05/02/2012 | CN101645599B Pretreatment unit capable of automatically generating power to control target loads |
| 05/02/2012 | CN101552567B Compensation method for pulse width modulation dead zone in three-phase grid-connected converter |
| 05/02/2012 | CN101540507B Compensating three-phase active power factor correcting circuit |
| 05/01/2012 | US8169797 AC/DC intermediate-circuit converter having a very wide AC input voltage range |
| 05/01/2012 | US8169106 Energy management system and control method using the same, for determining an operation mode of a high voltage direct current system |
| 05/01/2012 | US8169105 Configurable apparatus and methods for supplying power and data to electronic devices |
| 05/01/2012 | US8169103 Data-ready power mains distribution panel and data coupler |
| 04/29/2012 | CA2756435A1 Automatic transfer switch responsive to serial communication message and power system including the same |
| 04/29/2012 | CA2728788A1 Control system of wind power generator, wind farm, and method for controlling wind power generator |
| 04/26/2012 | WO2012054492A1 System, method and apparatus for ac grid connection of series-connected inverters |
| 04/26/2012 | WO2012053934A1 System for controlling electrical power generation |
| 04/26/2012 | WO2012053159A1 Apparatus control device and apparatus control method |
| 04/26/2012 | WO2012053158A1 Household electrical appliance and method for controlling household electrical appliance |
| 04/26/2012 | WO2012052424A1 Electrical power supply device for a nonlinear, temporally varying load |
| 04/26/2012 | WO2012052211A2 Arrangement for the operation of a self-sufficient photovoltaic system |
| 04/26/2012 | WO2012003921A3 Method for controlling pv installations in an electrical grid |
| 04/26/2012 | WO2011150932A3 Method and control arrangement for controlling central capacitors in wind power plants |
| 04/26/2012 | WO2011110433A3 Device for converting electric energy and method for operating such a device |
| 04/26/2012 | WO2011097147A3 Detection of islanding for grid connected inverter |
| 04/26/2012 | US20120098347 Electronic circuit breaker with alternate mode of operation using auxiliary power source |
| 04/26/2012 | US20120097104 Rf impedance matching network with secondary dc input |
| 04/26/2012 | DE102010042781A1 Vorrichtung und Verfahren zur Ausfilterung von Versorgungsnetzstörungen aus einem Elektrodensignal in einem metallurgischen Elektroumschmelzverfahren Apparatus and method for filtering of power supply noise from a signal electrode in a metallurgical Elektroumschmelzverfahren |
| 04/26/2012 | CA2814978A1 Power supply device for a nonlinear, time-varying load |
| 04/26/2012 | CA2809142A1 Microgrid control system |
| 04/25/2012 | EP2445078A1 Converter switch |
| 04/25/2012 | EP2445077A1 Photovoltaic assembly with reactive power generation dependent on mains voltage |
| 04/25/2012 | EP2445076A1 Electricity supply system for a non-linear load which varies over time |
| 04/25/2012 | EP2445075A2 Electric power transmission system for wind turbine and wind turbine farm and method for operating same |
| 04/25/2012 | EP2443735A1 Converter |
| 04/25/2012 | EP2443732A1 An arrangement for exchanging power |
| 04/25/2012 | EP2443719A2 Controlling an inverter device of a high voltage dc system for supporting an ac system |
| 04/25/2012 | EP2443718A1 An arrangement for protecting equipment of a power system |
| 04/25/2012 | EP2443717A1 An arrangement for exchanging power |
| 04/25/2012 | CN202206548U 通信基站发电机计时器 Communication base station generator timer |
| 04/25/2012 | CN202206344U Integrated control system based on high-voltage motor control and reactive power compensation |
| 04/25/2012 | CN202206331U 太阳能发电系统 Solar Power System |
| 04/25/2012 | CN202206328U Five-level inverter circuit and high-voltage reactive compensation system being composed of same |
| 04/25/2012 | CN202206146U Dynamic voltage restorer (DVR)-based wind generating set low-voltage crossover supporting device |
| 04/25/2012 | CN202206145U 一种配电网电压低频振荡抑制装置 Voltage distribution networks and low frequency oscillation suppression device |
| 04/25/2012 | CN202206144U Reactive power compensation system |
| 04/25/2012 | CN202206143U Discharging circuit for static switch |
| 04/25/2012 | CN202206142U Intelligent reactive power dynamic compensation box |
| 04/25/2012 | CN202206141U Submerged arc furnace secondary low pressure fixing and dynamic energy-saving compensation device |
| 04/25/2012 | CN202206140U Dynamic power flow control device for output side switch controlled transformer |
| 04/25/2012 | CN202205582U 一种高压电力电容器固定架 A high voltage power capacitors holder |
| 04/25/2012 | CN102427299A Multifunctional large-power power electronic current transformer |
| 04/25/2012 | CN102427272A Battery energy storage monitoring scheduling system and control method thereof |
| 04/25/2012 | CN102427266A Multifunctional photovoltaic UPS (uninterruptible power supply) system and control method thereof |
| 04/25/2012 | CN102427251A 一种实现同步高频调制的方法及装置 Method and apparatus for synchronization of a frequency-modulated |
| 04/25/2012 | CN102427250A 一种兼具有高频逆向传输及单向传输功能的方法、装置及系统 A method and high frequency transmission and reverse one-way transmission capabilities, device and system |
| 04/25/2012 | CN102427249A Method and system for controlling distributed micro-grid parallel operation |
| 04/25/2012 | CN102427248A Direct-driven wind power synchronization control method based on Buck-Boost matrix converter |
| 04/25/2012 | CN102427247A Wind power generation field power adjusting system and adjusting method thereof |
| 04/25/2012 | CN102427246A Method for power compensation of rotor of doubly-fed asynchronous wind-driven generator |
| 04/25/2012 | CN102427245A Movable model device of system of offshore wind power synchronized through flexible DC (Direct Current) power transmission |
| 04/25/2012 | CN102427244A Large-scale photovoltaic wind power information accessing system |
| 04/25/2012 | CN102427243A Multi-terminal DC (Direct Current) power transmission system for combined synchronization of wind power plant and conventional power plant |
| 04/25/2012 | CN102427242A Lithium battery energy storage monitoring system |
| 04/25/2012 | CN102427241A 钠硫电池储能监控系统 Sodium sulfur battery energy storage monitoring system |
| 04/25/2012 | CN102427240A System for realizing interaction between electric vehicle and power grid |
| 04/25/2012 | CN102427239A Charging and discharging system using electric automobile as mobile energy storage unit in power grid |
| 04/25/2012 | CN102427238A Method for adjusting gear signals of tap switch during parallel running of different converter transformers |
| 04/25/2012 | CN102427237A Low-voltage reactive power compensation optimized switching controller and control method thereof |
| 04/25/2012 | CN102427236A Method for suppressing total output reactive power fluctuation by adopting doubly-fed induction wind power system with series grid-side converter under unbalanced voltage |
| 04/25/2012 | CN102427235A Methods for distributing reactive power compensation capacity and switching branch circuits of passive filter |
| 04/25/2012 | CN102427234A AVC (Automatic Voltage Control) joint-debugging control method based on var compensation technology |
| 04/25/2012 | CN102427233A Power saving device with harmonic suppression and voltage stabilization functions |
| 04/25/2012 | CN102427232A Multiple-harmonic-source harmonic isolation device |
| 04/25/2012 | CN102427231A 小型风力发电智能控制系统及方法 Small wind power intelligent control system and method |
| 04/25/2012 | CN102427230A Wind-light storage combined dispatching method and system used for distributed microgrid island operation |
| 04/25/2012 | CN102427229A Zero-injection-constraint electric power system state estimation method based on modified Newton method |