| Patents for H02J 3 - Circuit arrangements for ac mains or ac distribution networks (38,663) |
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| 07/11/2012 | CN202334364U Solar photovoltaic grid-connected inverter |
| 07/11/2012 | CN202334357U Three-level half-bridge photovoltaic grid-connected inverter |
| 07/11/2012 | CN202334349U Direct current isolated grid-connected inversion circuit and photovoltaic inversion system |
| 07/11/2012 | CN202334324U 变频系统及其有源回馈装置 Inverter system and active feedback device |
| 07/11/2012 | CN202333842U 一种新型控制柜 A new control cabinet |
| 07/11/2012 | CN202333841U 一种用于发电机组孤岛和并网运行的控制系统 A control system for turbine islands and grid operation |
| 07/11/2012 | CN202333840U 抽油机节电控制器 Pumping saving controller |
| 07/11/2012 | CN202333839U 分布式电源抗谐波同步控制系统 Anti-harmonic synchronization of distributed power control system |
| 07/11/2012 | CN202333838U Isolated grid-connected inverter power supply |
| 07/11/2012 | CN202333837U 一种直流电逆变自动跟踪并网装置 One kind of DC inverter automatic tracking and network devices |
| 07/11/2012 | CN202333836U Energy feedback type electronic load system |
| 07/11/2012 | CN202333835U High-frequency photovoltaic grid-connected power generation system |
| 07/11/2012 | CN202333834U 抑制发电机组次同步谐振的系统 Generator sub-synchronous resonance suppression system |
| 07/11/2012 | CN202333833U Wind generating set provided with direct current bus |
| 07/11/2012 | CN202333832U 船舶中压电站 Ships piezoelectric station |
| 07/11/2012 | CN202333831U Uninterrupted power supply system of new energy sources |
| 07/11/2012 | CN202333830U 分布式电源系统蓄电池储能变流器 Distributed Power Systems battery energy storage converter |
| 07/11/2012 | CN202333829U 一种用于400Hz中频电源的动态电压恢复器 A dynamic voltage restorer 400Hz frequency power supply |
| 07/11/2012 | CN202333828U 独立式电能存储系统 Independent Energy Storage System |
| 07/11/2012 | CN202333827U 智能型调峰节能电源 Intelligent energy-saving power peaking |
| 07/11/2012 | CN202333826U Reactive compensation sampling measurement system |
| 07/11/2012 | CN202333825U Reactive automatic compensation device special for rural water conservancy drainage and irrigation equipment |
| 07/11/2012 | CN202333824U Reactive compensation device |
| 07/11/2012 | CN202333823U Controller for implementing iron core two-phase magnetic characteristic conversion |
| 07/11/2012 | CN202333822U Automatic compensation device for reactive compensation device of transformer substation |
| 07/11/2012 | CN202333821U Excitation control box of magnetic control reactor |
| 07/11/2012 | CN202333820U In situ reactive power compensation device of motor |
| 07/11/2012 | CN202333819U Power compensating device of air compressor |
| 07/11/2012 | CN202333818U Outer shell of static reactive power generator |
| 07/11/2012 | CN202333817U Energy saving and electric energy quality control system of Kivcet furnace |
| 07/11/2012 | CN202333816U Reactive compensation device |
| 07/11/2012 | CN202333815U Novel magnetic control reactor |
| 07/11/2012 | CN202333814U Low voltage reactive filtering device |
| 07/11/2012 | CN202333813U Multifunctional electric energy quality regulator based on voltage type inverter |
| 07/11/2012 | CN202333812U Quick switching reactive power filtration and compensation device |
| 07/11/2012 | CN202333811U Motor terminal power distribution device with reactive compensation function |
| 07/11/2012 | CN202333810U Voltage-adjustable and impedance-adjustable type reactive compensation device |
| 07/11/2012 | CN202333809U Zero-crossing trigger device for thyristor switched capacitor |
| 07/11/2012 | CN202333808U Electricity-saving protector for power grid |
| 07/11/2012 | CN202333807U 一种调整配变三相负荷不平衡的漏电保护装置 Leakage protection device for adjusting the distribution becomes unbalanced three-phase load |
| 07/11/2012 | CN202333806U Power saving device |
| 07/11/2012 | CN202333805U Off-grid load-shedding device in case of power outage |
| 07/11/2012 | CN202333804U 一种新型智能消谐装置 A new intelligent harmonic elimination device |
| 07/11/2012 | CN202333803U Harmonic and reactive current detection circuit |
| 07/11/2012 | CN202333802U 连体压缩箱电气系统 Siamese compression box electrical system |
| 07/11/2012 | CN202333801U 220V high-temperature superconducting 10KV power supply transmission and transformation circuit |
| 07/11/2012 | CN202333513U Compensation cabinet |
| 07/11/2012 | CN202332527U Novel taps for magnetic control reactor body |
| 07/11/2012 | CN202332522U 一种电能质量综合治理装置专用电抗器 POWER QUALITY comprehensive management unit dedicated reactors |
| 07/11/2012 | CN202332471U Dry-type half iron core shunt reactor |
| 07/11/2012 | CN202326023U Novel wind generating set structure |
| 07/11/2012 | CN202326018U Stable power-generating system based on conversion of wind energy and water energy |
| 07/11/2012 | CN202322726U 能量回馈型熄焦车智能控制系统 Regenerative type coke quenching car Intelligent Control System |
| 07/11/2012 | CN102577023A Power control system |
| 07/11/2012 | CN102577008A Power control system and electric device |
| 07/11/2012 | CN102577007A An electrical power conversion system and method |
| 07/11/2012 | CN102577006A An arrangement for protecting equipment of a power system |
| 07/11/2012 | CN102576996A Monitoring apparatus |
| 07/11/2012 | CN102576964A Power distribution system |
| 07/11/2012 | CN102570957A Control method for doubly-fed electric generator |
| 07/11/2012 | CN102570950A Subsynchronous damping control system and subsynchronous damping control method for generator terminals |
| 07/11/2012 | CN102570891A Flyback photovoltaic grid-connected inverter adopting interleaving parallel-connection active clamping technology |
| 07/11/2012 | CN102570880A Three-phase full-bridge converter device |
| 07/11/2012 | CN102570879A Parallel repetitive control system implemented based on FPGA (Field Programmable Gate Array) |
| 07/11/2012 | CN102570878A Single-phase inverter |
| 07/11/2012 | CN102570872A Single-phase grid-connection inverter circuit |
| 07/11/2012 | CN102570852A Main circuit of wind power converter |
| 07/11/2012 | CN102570847A Power conversion system and method |
| 07/11/2012 | CN102570509A Base-point power off-set setting method for BLR-type AGC unit |
| 07/11/2012 | CN102570508A Methods and systems for controlling a power conversion system |
| 07/11/2012 | CN102570507A Energy feedback type diesel engine testing device |
| 07/11/2012 | CN102570506A Controlling method of energy feedback type diesel engine testing device |
| 07/11/2012 | CN102570505A Method for controlling battery energy storage system for 'partial peak load shifting' of wind power |
| 07/11/2012 | CN102570504A Frequency-conversion main power supply system for thermal power plant |
| 07/11/2012 | CN102570503A Double-fed wind power generation system |
| 07/11/2012 | CN102570502A Controller arrangement of an electrical power transfer system of a wind turbine |
| 07/11/2012 | CN102570501A Product quality aging testing system |
| 07/11/2012 | CN102570500A Electric energy scheduling device having harmonic control function and method for the device |
| 07/11/2012 | CN102570499A Constant-speed constant-frequency wind turbine low-voltage riding-through device and control method |
| 07/11/2012 | CN102570498A System and method for control of a grid connected power generating system |
| 07/11/2012 | CN102570497A Method for controlling thermal generator set in isolated network operation of power grid |
| 07/11/2012 | CN102570496A Fault-ride-through method, converter and power generating unit for a wind turbine |
| 07/11/2012 | CN102570495A Novel photovoltaic grid-connected control circuit |
| 07/11/2012 | CN102570494A Electric power transmission system for wind turbine and wind turbine farm and method for operating same |
| 07/11/2012 | CN102570493A Optimal control method for reducing parallel initial fault current angles of looped network in power system restoration |
| 07/11/2012 | CN102570492A Power inverter system and method of starting same at high DC voltage |
| 07/11/2012 | CN102570491A Multilevel power converter or inverter arrangement using h bridges |
| 07/11/2012 | CN102570490A Intelligent charge-discharge control method for electric vehicle |
| 07/11/2012 | CN102570489A Dynamic power coordination control method for battery energy storage system |
| 07/11/2012 | CN102570488A Power conversion system based on energy storage of lithium battery and control method thereof |
| 07/11/2012 | CN102570487A Comprehensive dispatching system/device of energy storage system |
| 07/11/2012 | CN102570486A PSS (power system stabilizer) parameter optimizing method for inhibiting multi-mode low-frequency oscillation |
| 07/11/2012 | CN102570485A Voltage control method based on direct current power modulation |
| 07/11/2012 | CN102570484A Novel 10kV switch device and control method thereof |
| 07/11/2012 | CN102570483A Reactive voltage regulation de-mismatching method of 220kV power transformer substation |
| 07/11/2012 | CN102570482A High voltage parallel capacitor device based on neutral point direct grounding mode |
| 07/11/2012 | CN102570481A Calculating method of inductance value of thyristor controlled reactor |
| 07/11/2012 | CN102570480A Evaporating and cooling system of reactive power compensation device |
| 07/11/2012 | CN102570479A Reactive allocation combined control system |
| 07/11/2012 | CN102570478A Low-voltage power grid monitoring system |