| Patents for H02J 3 - Circuit arrangements for ac mains or ac distribution networks (38,663) |
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| 04/24/2013 | CN103066595A Optimization method of extra-high voltage transient stability control |
| 04/24/2013 | CN103066594A Power grid risk pre-controlling method based on province power grid topology and city power grid topology and county power grid topology |
| 04/24/2013 | CN103066593A Three-phase load flow calculation method of weak looped distribution network comprising multi-type distributed power sources |
| 04/24/2013 | CN103066592A Power network loss on-line monitoring method |
| 04/24/2013 | CN103066591A Power grid parameter deviation identification method based on real-time measurement |
| 04/24/2013 | CN103066590A Coal-fired power unit primary frequency modulation method based on estimating compensation control |
| 04/24/2013 | CN103066589A Equivalent modeling method of power system double output phase regulator |
| 04/24/2013 | CN103066580A Fault protection applied to wind power plant and energy stabilization circuit |
| 04/24/2013 | CN103061990A Renewable energy source microgrid system of oil field pumping unit |
| 04/24/2013 | CN102315646B Maximum power capability based power distribution network communication validity and communication simplifying method |
| 04/24/2013 | CN102299517B Industrial harmonic-eliminating filtering energy-saving device and method |
| 04/24/2013 | CN102170131B Limit power calculating method of associated electricity transmission cross-section based on parallel calculating model |
| 04/24/2013 | CN102104251B Microgrid real-time energy optimizing and scheduling method in parallel running mode |
| 04/24/2013 | CN102097823B Two-stage three-phase photovoltaic grid-connected system without direct-current (DC) voltage sensor and control method of system |
| 04/24/2013 | CN102097807B System for preventing power system from generating PT (potential transformer) ferromagnetic resonance |
| 04/24/2013 | CN102064561B Permanent magnetic motor-type elastic energy storage power generation system |
| 04/24/2013 | CN102055191B Wide area load shedding control method for quiescent voltage stabilization considering external power grid equivalence |
| 04/24/2013 | CN102013700B Large-and-medium-sized photovoltaic power station grid-connected characteristic research and electric energy quality evaluation method |
| 04/24/2013 | CN102005843B Brushless double-fed wind driven generator and method for controlling brushless double-fed wind driven generating system |
| 04/24/2013 | CN101976839B Element immediately-updating sparse matrix method-based power system network topology analysis method |
| 04/24/2013 | CN101919134B Event-based control system for wind turbine generators and control method thereof |
| 04/24/2013 | CN101917004B Shore power supply system for ships and power supply method thereof |
| 04/24/2013 | CN101834443B Method for balancing three-level direct current midpoint voltage by using time factor |
| 04/24/2013 | CN101741086B Method for comprehensively evaluating stability calculation models based on PMU data |
| 04/24/2013 | CN101719679B Method for synchronizing distributed power supply and power grid |
| 04/24/2013 | CN101617282B 供电控制设备 Power control equipment |
| 04/24/2013 | CN101609987B Joint coordination method for master-station automatic voltage control and plant-station voltage reactive power control |
| 04/24/2013 | CN101034807B Methods and apparatus for electric power grid frequency stabilization |
| 04/24/2013 | CN101019293B Method for islanding detection of grid-connected electrical power systems |
| 04/23/2013 | US8427131 Voltage regulation at a remote location using measurements from a remote metering device |
| 04/23/2013 | US8427010 DC-to-AC power conversion system and method |
| 04/23/2013 | US8427009 Distributed maximum power point tracking system, structure and process |
| 04/23/2013 | US8427007 Field replaceable management module |
| 04/23/2013 | DE202013003174U1 Energiespeicher und Energieverteilung Energy storage and power distribution |
| 04/22/2013 | DE202013101192U1 Anordnung aus Photovoltaikmodulen und Schaltanordnung Array of photovoltaic modules and switch assembly |
| 04/19/2013 | CA2757790A1 Disconnect switch for distributed energy system |
| 04/18/2013 | WO2013054795A1 Hybrid storage cell, vehicle and power storage unit employing same, smart grid vehicle system employing vehicle, and power supply network system employing power storage unit |
| 04/18/2013 | WO2013054640A1 Flywheel power generating facility and operating method therefor |
| 04/18/2013 | WO2013054617A1 Power control device and program |
| 04/18/2013 | WO2013054573A1 Power sharing method and power sharing device |
| 04/18/2013 | WO2013053987A1 A load sharing arrangement |
| 04/18/2013 | WO2013053778A1 Method for controlled operation of a biotechnological apparatus and bioreactor systems |
| 04/18/2013 | WO2013053399A1 A multilevel converter and a method for controlling multilevel converter including balancing cell voltages |
| 04/18/2013 | WO2012095233A3 Control circuit and method for converters of wind turbines |
| 04/18/2013 | WO2012022374A3 Method for configuring a power automation appliance in an electric power automation installation, and configuration computer for carrying out the method |
| 04/18/2013 | WO2011141807A9 Uninterruptiple power supply systems and methods supporting load balancing |
| 04/18/2013 | US20130093336 Low voltage system and method |
| 04/18/2013 | DE102011054426A1 Electric vehicle e.g. car, has receiver for receiving control parameter data, and control device formed such that current transmission unit is selectively switchable into charging mode, feed-back mode or neutral mode based on parameter data |
| 04/18/2013 | CA2852140A1 A multilevel converter and a method for controlling multilevel converter including balancing cell voltages |
| 04/17/2013 | EP2582030A2 Circuit arrangement with inverter |
| 04/17/2013 | EP2582013A2 Energy storage system and control method |
| 04/17/2013 | EP2582003A1 Method and device for photovoltaic inverter correction and driving |
| 04/17/2013 | EP2582002A2 Method for controlling the voltage in a grid comprising decentralised sources |
| 04/17/2013 | EP2581873A1 Power consumption amount display device |
| 04/17/2013 | EP2581872A1 Power demand plan coordination device, power demand plan coordination method, and program |
| 04/17/2013 | EP2580859A1 Double module for a modular multi-stage converter |
| 04/17/2013 | EP2580850A2 Control unit for brushless motor in a power tool |
| 04/17/2013 | EP2580836A2 Wind turbine and method for operating a wind turbine |
| 04/17/2013 | EP2580835A2 Method for feeding electrical power into a three-phase ac voltage system |
| 04/17/2013 | EP2580834A1 Predictable feeding of reactive powers |
| 04/17/2013 | EP2580833A2 Automatic matching of sources to loads |
| 04/17/2013 | EP2580832A2 Thermal storage device controller |
| 04/17/2013 | EP2580831A2 Method for controlling a power supply device |
| 04/17/2013 | EP2580122A1 Power supply circuit for an aircraft de-icing system |
| 04/17/2013 | CN202889236U Novel photovoltaic grid-connected inverter system |
| 04/17/2013 | CN202889121U Motor energy-saving system |
| 04/17/2013 | CN202888896U Intelligent bimodule photovoltaic power generation system |
| 04/17/2013 | CN202888866U No-load off-line control system of diesel generating set |
| 04/17/2013 | CN202888865U Unit synchronization system provided with synchronization block relay |
| 04/17/2013 | CN202888864U Diesel generating set synchronous parallel operation control system |
| 04/17/2013 | CN202888863U Grid electricity petroleum drilling machine based on active front-end rectified feedback |
| 04/17/2013 | CN202888862U Energy storage inverter suitable for distributed new energy power |
| 04/17/2013 | CN202888861U Integrated wind-light energy storage and electricity generation system |
| 04/17/2013 | CN202888860U Off-grid and grid-connected photovoltaic inverter |
| 04/17/2013 | CN202888859U Building photovoltaic grid-connected system |
| 04/17/2013 | CN202888858U Distributed-energy-access micro-grid controller |
| 04/17/2013 | CN202888857U Medium voltage distributed MPPT large power photovoltaic grid connected power station |
| 04/17/2013 | CN202888856U 逆变器电路拓扑 The inverter circuit topology |
| 04/17/2013 | CN202888855U Novel auxiliary power supply of high-power photovoltaic inverter |
| 04/17/2013 | CN202888854U Battery energy storage power conversion system comprising Z source network |
| 04/17/2013 | CN202888853U Intelligent electrical load unbalance compensation device |
| 04/17/2013 | CN202888852U Reactance filter economizer |
| 04/17/2013 | CN202888851U Intelligent electrical load unbalance compensation device |
| 04/17/2013 | CN202888850U Automatic voltage compensation device |
| 04/17/2013 | CN202888849U Dynamic reactive power compensation device of circuit post |
| 04/17/2013 | CN202888848U Magnetic valve control-type dynamic reactive power compensation equipment |
| 04/17/2013 | CN202888847U Switching device of capacitor |
| 04/17/2013 | CN202888846U Low-voltage reactive compensation controller |
| 04/17/2013 | CN202888845U Intelligent capacitor |
| 04/17/2013 | CN202888844U Intelligent low-voltage reactive compensation controller |
| 04/17/2013 | CN202888843U Intelligent capacitor controller |
| 04/17/2013 | CN202888842U Intelligent combined low-voltage power capacitor |
| 04/17/2013 | CN202888841U Intelligent reactive compensation controller |
| 04/17/2013 | CN202888840U Capacitance compensation system of box-type substation |
| 04/17/2013 | CN202888839U Compensation device with dual functions of resonance elimination and reactive power compensation |
| 04/17/2013 | CN202888838U High-voltage compensation device |
| 04/17/2013 | CN202888837U Controller |
| 04/17/2013 | CN202888836U Low-voltage power grid three-phase current balancing device |
| 04/17/2013 | CN202888835U Intelligent inhibition harmonic wave capacitor |
| 04/17/2013 | CN202888834U 智能化并联有源电力滤波器 Intelligent shunt active power filter |