| Patents for H02J 3 - Circuit arrangements for ac mains or ac distribution networks (38,663) |
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| 01/19/2011 | CN101950979A Intelligent control device of renewable energy sources |
| 01/19/2011 | CN101950978A Energy-saving emergency type elevator feedback power system |
| 01/19/2011 | CN101950977A Method for realizing low-wind speed startup of permanent magnet wind turbine generator |
| 01/19/2011 | CN101950976A Grid-connected operation method of grid-connected type photovoltaic inverter |
| 01/19/2011 | CN101950975A Control method of double-fed wind power converter |
| 01/19/2011 | CN101950974A Electric energy quality regulating system based on energy storing of super capacitor |
| 01/19/2011 | CN101950973A Double-fed wind generating set control system and stable control method |
| 01/19/2011 | CN101950972A SVC composite control method based on rapid equivalent susceptance calculation |
| 01/19/2011 | CN101950971A Reactive power optimization method of enterprise distribution network based on genetic algorithm |
| 01/19/2011 | CN101950970A Dynamic phase-splitting reactive compensation control system based on DSP |
| 01/19/2011 | CN101950969A H-bridge cascade type active power filter |
| 01/19/2011 | CN101950968A Control method of railway power regulator based on half-bridge structure |
| 01/19/2011 | CN101950967A Special voltage stabilizer for three-phase permanent magnet synchronous motor (PMSM) for producing well in oil field |
| 01/19/2011 | CN101950966A Dual-buck full-bridge parallel-connected active electric filter based on frequency multiplication SPWM (Sinusoidal Pulse Width Modulation) control |
| 01/19/2011 | CN101950965A Single-phase and three-phase dual-buck type half-bridge parallel active power filter |
| 01/19/2011 | CN101950964A System containing cogeneration unit and pure condensing steam thermal power unit as well as scheduling method |
| 01/19/2011 | CN101950963A System and method for avoiding startup and shutdown peaking by matching heat and power cogeneration unit with pure condensing thermal power unit |
| 01/19/2011 | CN101950962A System and method for saving energy and shaving peak by coordinating cogeneration set and wind energy generator set |
| 01/19/2011 | CN101950670A High-voltage power capacitor device and manufacturing method thereof |
| 01/19/2011 | CN101505058B Dual recursive neutral element sensitivity load network modeling apparatus and method based double network |
| 01/19/2011 | CN101499373B Magnetic modulating method and apparatus of hollow filter reactor |
| 01/19/2011 | CN101478155B Electronic energy saving device |
| 01/19/2011 | CN101474760B Vertical lathe workstation control system |
| 01/19/2011 | CN101272119B Method for restraining imbalance and deformation of double-feedback type wind generator set stator current |
| 01/18/2011 | US7872447 Electrical storage apparatus for use in auxiliary power supply supplying electric power from electric storage device upon voltage drop of main power supply |
| 01/18/2011 | US7872372 Power circuit |
| 01/18/2011 | US7872367 Method and device for redundantly supplying several electric servomotors or drive motors by means of a common power electronics unit |
| 01/13/2011 | WO2011005838A2 Grid frequency-responsive solid oxide fuel cell system |
| 01/13/2011 | WO2011005339A1 Systems and methods for distributed power factor correction and phase balancing |
| 01/13/2011 | WO2011004050A1 Method for compensating for unbalance in an electric power supply and compensating device used to carry out same |
| 01/13/2011 | WO2011004046A1 System and methods for the two-way transfer of electrical energy between vehicles and electrical grids |
| 01/13/2011 | WO2011003435A1 An arrangement and a method for monitoring the status of dc-side reactors in an hvdc transmission |
| 01/13/2011 | WO2010120952A3 Automated shore power system |
| 01/13/2011 | US20110007824 System communication systems and methods for electric vehicle power management |
| 01/13/2011 | US20110006969 Power array for high power pulse load |
| 01/13/2011 | US20110006691 Voltage converter for supplying a semiconductor light source, in particular a led lamp |
| 01/13/2011 | US20110006615 Plug socket |
| 01/13/2011 | US20110006609 Photovoltaic power system |
| 01/13/2011 | DE102009032133A1 Verfahren zum Kontrollieren eines Betriebs eines Rechennetzwerks A method for controlling an operation of a computing network |
| 01/13/2011 | CA2708001A1 System and method for combining the outputs of multiple, disparate types of power sources |
| 01/12/2011 | EP2273649A1 Method for synchronising an electric machine with an electric grid and arrangement of an electric machine and an electric grid |
| 01/12/2011 | EP2273648A2 Grid responsive control device |
| 01/12/2011 | EP2273647A2 Grid responsive control device |
| 01/12/2011 | EP2273646A2 Method for reactive power compensation and apparatus for power generation in an electricity grid |
| 01/12/2011 | EP2273645A2 System control by use of phase rotation signaling |
| 01/12/2011 | EP2272147A1 Circuitry for feeding a drive machine having a plurality of winding systems |
| 01/12/2011 | EP2272033A1 Scheduling usage or provision of resources |
| 01/12/2011 | CN201708747U Three-phase motor energy-saving device |
| 01/12/2011 | CN201708553U Electric drilling machine load peak-shaving device |
| 01/12/2011 | CN201708552U Embedded electric system power factor optimizing device |
| 01/12/2011 | CN201708551U Low-pressure reactive power compensation drawer module |
| 01/12/2011 | CN201708550U Magnetic-control dynamic filtering MSVC flexible compensating device |
| 01/12/2011 | CN201708549U Filtering controller |
| 01/12/2011 | CN201708548U Differential-mode filter used for restraining transmission electromagnetic interference |
| 01/12/2011 | CN201708547U Energy-saving, consumption-reducing, safe and reliable rural grid system |
| 01/12/2011 | CN201705323U Mechanical drilling machine load peak regulating device |
| 01/12/2011 | CN101945517A Power-saving device of street lamp |
| 01/12/2011 | CN101945030A Communication method for monitoring inverter on basis of MODBUS protocol |
| 01/12/2011 | CN101944841A Inversion control digital filter |
| 01/12/2011 | CN101944750A Implementation method of flexible intelligent direct current electric local area network electric power system |
| 01/12/2011 | CN101944749A Parallel running controller of fully-digital shipboard generator and method |
| 01/12/2011 | CN101944748A Multi-channel parallel electric energy feedback electric network type energy-saving electronic load |
| 01/12/2011 | CN101944747A Low-voltage failure crossing method of brushless cascading double-fed wind power generator set |
| 01/12/2011 | CN101944746A Island detection method, device and system of photovoltaic grid-connected power generating system |
| 01/12/2011 | CN101944745A Energy storage system and control method thereof |
| 01/12/2011 | CN101944744A Filter compensation device of monocrystalline silicon furnace power supply |
| 01/12/2011 | CN101944743A Method for designing coordinate amount among automatic voltage control systems of power grid and implementing method thereof |
| 01/12/2011 | CN101944742A Improved power flow feasible solution recovering method |
| 01/12/2011 | CN101944741A Load security domain researching method based on voltage level restraint |
| 01/12/2011 | CN101943104A Airbag type sea wave power generation |
| 01/12/2011 | CN101656144B Device for inhibiting harmonic amplification on third winding side of ultrahigh voltage transformer |
| 01/12/2011 | CN101604474B Time-division multiplexing alternating current sampling method for digital substation based on VLAN technology |
| 01/12/2011 | CN101510693B Method and apparatus for obtaining hyposynchronous oscillation revolution speed signal |
| 01/12/2011 | CN101447679B Method for implementing parallel power system stabilizer |
| 01/12/2011 | CN101436779B Transient, dynamic stabilization aid decision-making automatic searching method based on parallel calculation |
| 01/11/2011 | US7870080 Multi-utility energy control and facility automation control system with dashboard having a plurality of interface gateways |
| 01/11/2011 | CA2279047C Command and control system and method for multiple turbogenerators |
| 01/10/2011 | CA2701427A1 Micro-controller-based electronic switch using a proximity detector to facilitate hands-free control of an ac device |
| 01/06/2011 | WO2011002843A2 Automatic identification of multiple power grids using data synchronization |
| 01/06/2011 | WO2011002480A1 Transition-rate control for phase-controlled ac power delivery system |
| 01/06/2011 | WO2011001845A1 Power distribution system |
| 01/06/2011 | WO2011001796A1 Power distribution system |
| 01/06/2011 | WO2011001783A1 Power generation system |
| 01/06/2011 | WO2011001079A1 System and method for supplying electric power to an aircraft |
| 01/06/2011 | WO2011000425A1 Method and arrangement to control an ac system |
| 01/06/2011 | WO2010130583A3 Distributed power generation |
| 01/06/2011 | WO2010108979A3 Improved frequency control |
| 01/06/2011 | CA2766488A1 Electrical power supply system and method for an aircraft |
| 01/06/2011 | CA2765105A1 Method and arrangement to control an ac system |
| 01/05/2011 | EP2270949A2 Method for supplying a consumer with electrical energy |
| 01/05/2011 | EP2270948A1 Method and device for anticipation of electric consumption of the subscribers |
| 01/05/2011 | EP2270947A2 Method and device for energy distribution |
| 01/05/2011 | EP2270332A1 Method of operation of a wind turbine to guarantee primary or secondary regulation in an electric grid |
| 01/05/2011 | DE102009031550A1 Vorrichtung zur Energieverteilung und Verfahren Device for power distribution and procedures |
| 01/05/2011 | DE102009031422A1 Verfahren zur Versorgung eines Verbrauchers mit elektrischer Energie A method for supplying a load with electric energy |
| 01/05/2011 | CN201700047U Led灯驱动电路 Led lamp drive circuit |
| 01/05/2011 | CN201699653U Feedback mine hoist variable-frequency speed regulating device |
| 01/05/2011 | CN201699650U Electric machine voltage compensation control device for farmland water pump |
| 01/05/2011 | CN201699431U Electric supply circuit with wide input voltage range |
| 01/05/2011 | CN201699430U Testing device of distributed type photovoltaic power supply parallel-grid inverter |