| Patents for H02J 3 - Circuit arrangements for ac mains or ac distribution networks (38,663) |
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| 07/17/2013 | CN103208820A Bidirectional electric energy converter for intelligent power grid |
| 07/17/2013 | CN103208819A Micro-grid grid-connected operation control method and system |
| 07/17/2013 | CN103208818A Distribution network loop closing current calculating method based on distributed power supply |
| 07/17/2013 | CN103208817A Second-order slip form-based method for controlling doubly-fed wind generator (DFIG) |
| 07/17/2013 | CN103208816A Power collection and transmission system for wind power plant and voltage control method for alternating current generatrix of power collection and transmission system |
| 07/17/2013 | CN103208815A d-q axis parameter identification method for grid-connected inverter of photovoltaic power generation system |
| 07/17/2013 | CN103208814A Scalable vector graphics (SVG) power quality management engineering application method based on micro-network wide-area information |
| 07/17/2013 | CN103208813A Power system daily peak regulation capability assessment method for accurately calculating wind power influence |
| 07/17/2013 | CN103208812A Wind power converter structure and wind power generation system comprising same |
| 07/17/2013 | CN103208811A Control method of mains supply grid-connected power supply system |
| 07/17/2013 | CN103208810A Hybrid energy storage smooth wind power control system with variable filter coefficients |
| 07/17/2013 | CN103208809A Regulating device and control method for balance of demand side battery pack |
| 07/17/2013 | CN103208808A Power system sub-synchronous oscillation mode identification method |
| 07/17/2013 | CN103208807A Reactive compensation system of magnetically controlled reactor |
| 07/17/2013 | CN103208806A High-voltage permanent magnet zero passage switch control device |
| 07/17/2013 | CN103208805A Power factor adjusting circuit and control method |
| 07/17/2013 | CN103208804A Branch voltage stability analysis based selection method for reactive power compensation point of microgrid |
| 07/17/2013 | CN103208803A Reactive voltage optimal control method for wind electricity and photo-electricity integrated grid connection |
| 07/17/2013 | CN103208802A Low-voltage large-current power quality control system |
| 07/17/2013 | CN103208801A Active power filter (APF) main circuit applicable to medium voltage system |
| 07/17/2013 | CN103208800A Real-time monitoring system and method for power grid |
| 07/17/2013 | CN103208799A Intelligent load balancing system |
| 07/17/2013 | CN103208798A Method for calculating probability power flow of power system containing wind farm |
| 07/17/2013 | CN103208797A Estimation method for new-energy-containing power distribution network state based on intelligent optimization technology |
| 07/17/2013 | CN103208779A Differential protection system of large-power motor and differential protection method thereof |
| 07/17/2013 | CN102447268B Robust dicyclic photovoltaic grid-connected control method based on power feedforward |
| 07/17/2013 | CN102437811B Low voltage ride through control method of permanent magnet direct drive wind power generation system during power grid symmetrical short circuit default |
| 07/17/2013 | CN102437589B Equal power distribution control method of multiple parallel single-phase inverters for solar power generation |
| 07/17/2013 | CN102412595B Method for controlling connection between micro-grid and large power grid |
| 07/17/2013 | CN102324755B Low-voltage ride through control method and device for doubly-fed wind power generating system |
| 07/17/2013 | CN102255318B Capacitor breaker and isolation switch device |
| 07/17/2013 | CN102208811B Wiring structure of distribution network containing microgrid |
| 07/17/2013 | CN102025158B Directly-coupled series compensation device and compensation method thereof |
| 07/17/2013 | CN102005769B Disturbed mode analysis-based dynamic stability assistance decision method for power system |
| 07/17/2013 | CN101997315B Voltage control device and voltage control method |
| 07/17/2013 | CN101834542B Power conversion apparatus, power conditioner and power generation system |
| 07/17/2013 | CN101741099B Method for preventing false tripping of electric system out-of-step separating device in symmetrical fault |
| 07/17/2013 | CA2801742A1 Methods and systems for providing an appliance hybrid mode |
| 07/16/2013 | US8487473 Hierarchical power smoothing |
| 07/16/2013 | DE202013004062U1 Steuereinheit zur Leistungsregelung von Netzwechselrichtern in Verbindung mit Batteriespeichern und Lastmanagement Control unit for power control of power inverters in conjunction with battery storage and load management |
| 07/11/2013 | WO2013103804A1 System for building management of electricity via network control of point-of-use devices |
| 07/11/2013 | WO2013103058A1 System linking device |
| 07/11/2013 | WO2013103011A1 Power grid stabilization system and power grid stabilization method |
| 07/11/2013 | WO2013102990A1 Power load imbalance detection device and power load imbalance detection method |
| 07/11/2013 | WO2013102894A1 System and method for management of electric power consumption |
| 07/11/2013 | WO2013102849A2 Method and apparatus for pole-slip detection in synchronous generators |
| 07/11/2013 | WO2013102791A1 Method and apparatus for controlling a frequency converter |
| 07/11/2013 | WO2013102784A1 Calibration of current sensors in paralled power converters |
| 07/11/2013 | WO2013102782A1 Methods and apparatus for controlling power converters in parallel connection |
| 07/11/2013 | WO2013102779A1 Methods and apparatus for controlling power switches via a digital communication bus |
| 07/11/2013 | WO2013102690A1 System and method for limiting the voltage in converter stations supplied with a voltage |
| 07/11/2013 | WO2013102231A2 Device for influencing reactive-power flows |
| 07/11/2013 | WO2013049184A3 Methods and systems for operating a power converter |
| 07/11/2013 | WO2013041625A3 Power control device and method for balancing the load of a network |
| 07/11/2013 | WO2013037412A3 Method and arrangement for feeding electrical power from a wind energy installation into an ac voltage system |
| 07/11/2013 | US20130175878 System and method for reducing harmonic distortion |
| 07/11/2013 | US20130175871 Power oscillation damping controller |
| 07/11/2013 | US20130175870 Wind farm and method for operating a wind farm |
| 07/11/2013 | US20130175867 Grid-connected power storage system and method for controlling grid-connected power storage system |
| 07/11/2013 | US20130175864 Extension cord with ac and dc outputs for coupling ac and dc sources |
| 07/11/2013 | US20130175863 Power Sub-grid Including Power Generated From Alternative Sources |
| 07/11/2013 | US20130175860 Battery power supply device and method of controlling power of the same |
| 07/11/2013 | DE102012100193A1 Photovoltaic arrangement, has evaluation and control device grounds direct-current-side of solar inverter and solar system when measuring unit identifies feeding to solar inverter such that pole of solar system is placed on ground |
| 07/10/2013 | EP2613432A1 Reactive power compensator and associated method for balancing half-bus voltages |
| 07/10/2013 | EP2613416A2 Battery charging |
| 07/10/2013 | EP2613164A1 Distributed power generation device and method for operating same |
| 07/10/2013 | EP2612414A2 Control of electric output of a wind park |
| 07/10/2013 | EP2612413A1 System and method for paralleling electrical power generators |
| 07/10/2013 | EP2612412A1 Inductive power transfer pick up circuits |
| 07/10/2013 | EP2612026A1 Optimization of energy storage device usage in wind energy applications |
| 07/10/2013 | CN203057063U Starting operation compensation electric control device of three-phase asynchronous motor |
| 07/10/2013 | CN203056605U Low-power photovoltaic inverter low voltage ride through circuit |
| 07/10/2013 | CN203056604U Novel intelligent microgrid |
| 07/10/2013 | CN203056603U Asynchronous generator automatic grid-connected system used for waste heat power station |
| 07/10/2013 | CN203056602U Solar power station with temperature sensors, humidity sensors and illumination sensors on coastal mud flat |
| 07/10/2013 | CN203056601U Solar photovoltaic grid-connected power generation system for being used by household power-consuming equipment |
| 07/10/2013 | CN203056600U A solar photovoltaic grid-connected power generation system for being used by direct-current variable frequency air-conditioners |
| 07/10/2013 | CN203056599U Photovoltaic power generation system mounted at exterior building walls |
| 07/10/2013 | CN203056598U Transformer economic operation automatic switching system based on Zigbee |
| 07/10/2013 | CN203056597U Lithium battery photovoltaic energy storage system |
| 07/10/2013 | CN203056596U Three-phase electric power balance and waveform correction power-saving device |
| 07/10/2013 | CN203056595U Elevator anti-electromagnetic interference system |
| 07/10/2013 | CN203056594U Intelligent low voltage composite switch |
| 07/10/2013 | CN203056593U Reactor without partial discharge compensation |
| 07/10/2013 | CN203056592U Linearly configured grading type controllable high-resistance device |
| 07/10/2013 | CN203056591U Controllable wattless coordination control system of transformer station |
| 07/10/2013 | CN203056590U Dynamic reactive power compensation device for tractive power supply system |
| 07/10/2013 | CN203056589U Zero-crossing switching filtering reactive compensation device based on digital signal processor (DSP) chip control |
| 07/10/2013 | CN203056588U Mining power grid dynamic voltage stabling apparatus |
| 07/10/2013 | CN203056587U Pressure regulating type reactive compensation filtering apparatus |
| 07/10/2013 | CN203056586U High pressure dynamic reactive power compensation apparatus |
| 07/10/2013 | CN203056585U Inrush current-free electronic switch |
| 07/10/2013 | CN203056584U Filter compensation energy-saving electric cabinet |
| 07/10/2013 | CN203056583U Novel electric energy quality optimization apparatus |
| 07/10/2013 | CN203056582U Simulator for research on power quality of power distribution network |
| 07/10/2013 | CN203056581U Active electric power filter |
| 07/10/2013 | CN203056580U Sea island-based intelligent microgrid system |
| 07/10/2013 | CN203056385U Power supply system of intelligent building and integrated power supply cabinet system |
| 07/10/2013 | CN203048376U Energy controlling device for operation of elevator |
| 07/10/2013 | CN103201926A Electrical power supply device for a nonlinear, temporally varying load |