| Patents for H02J 3 - Circuit arrangements for ac mains or ac distribution networks (38,663) |
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| 09/24/2008 | CN201122843Y Inclusive reactive power smooth regulation device |
| 09/24/2008 | CN201122842Y Electric network purification energy-saving assorted device |
| 09/24/2008 | CN201122841Y Intelligent synthetic compensating gear |
| 09/24/2008 | CN201122501Y Four-core control casing tube magnetic controlled continuously adjustable reactor |
| 09/24/2008 | CN201122488Y Peak-clipping choke |
| 09/24/2008 | CN101273518A Direct-current transmission regulating method with multiple current transformers |
| 09/24/2008 | CN101272119A Method for restraining imbalance and deformation of double-feedback type wind generator set stator current |
| 09/24/2008 | CN101272118A Grid type double-feedback aerogenerator rotor position detecting method |
| 09/24/2008 | CN101272117A Electric voltage idle-work fast control method of speed-changing constant frequency wind generator group wind power station |
| 09/24/2008 | CN101272056A Control device for novel vertical axis wind power generation system |
| 09/24/2008 | CN101272055A Low voltage traversing control method of wind generator set |
| 09/24/2008 | CN101272054A Digitized monocycle control method of direct-driving type wind power generation system inverter |
| 09/24/2008 | CN101272053A Complementary system of thin-film cell photovoltaic power station and wind electric field |
| 09/24/2008 | CN101272052A Event coordination control method of advanced energy management system |
| 09/24/2008 | CN101272051A Information system integration method of electric network production control region and management information region |
| 09/24/2008 | CN101271544A Prediction method of generatrix load in electric network |
| 09/24/2008 | CN100421350C Generator control device |
| 09/24/2008 | CN100421329C Independent operation detecting apparatus and control method of the same |
| 09/18/2008 | WO2008112907A1 Method and system for mitigation of transformer saturation and ground electrode polarization in a high voltage dc transmission system |
| 09/18/2008 | WO2008111467A1 Demand control system, demand controller, demand program, and demand control method |
| 09/18/2008 | WO2008110649A1 Programmable electrical sequencer and use thereof for combining and balancing fragrances |
| 09/18/2008 | WO2008110211A1 Method and arrangement to reverse the power flow of a direct current power transmission system |
| 09/18/2008 | WO2008110209A1 Method and system to start multiple ac motors supplied by a power converter via a common ac bus |
| 09/18/2008 | WO2008110129A1 Method for limiting damage to a converter having a power semiconductor in the case of a short circuit of an intermediate direct current circuit |
| 09/18/2008 | WO2008090283A3 Active filtration of a three-phase current |
| 09/18/2008 | WO2008011622A3 Bpl low-voltage coupler |
| 09/18/2008 | US20080224670 Electrical power generation system |
| 09/18/2008 | US20080224538 Grid-connected fuel cell system and load using the same |
| 09/18/2008 | DE102007013225A1 Heat supply system, using at least a cogeneration power plant with a heat pump, supplies electricity customers with surplus stored or fed into a grid together with water heating |
| 09/17/2008 | EP1969692A2 Location determination of power system disturbances based on frequency responses of the system |
| 09/17/2008 | EP1643609B1 Wind energy installation with converter control and method of operation |
| 09/17/2008 | EP1478075B1 Very short term load predictor |
| 09/17/2008 | CN201118251Y Direct drive type permanent magnetism synchronous wind power generator paralleling and power regulation system |
| 09/17/2008 | CN201118250Y Three phase energy supply electricity saver |
| 09/17/2008 | CN201118249Y Spinning frame reactive power compensating device |
| 09/17/2008 | CN201118248Y Low-voltage extraction type reactive power compensating device |
| 09/17/2008 | CN201118247Y Intelligent reactive controller |
| 09/17/2008 | CN201118246Y Industry dedicated power-saving device |
| 09/17/2008 | CN201118245Y Three phase oil immersion type magnetic control reactor |
| 09/17/2008 | CN201118244Y Chain type static synchronous compensator self excitation start-up circuit |
| 09/17/2008 | CN201118243Y Low-voltage reactive-load automatic compensation cabinet integrated measuring and controlling device |
| 09/17/2008 | CN201118242Y Low-voltage powerless automatic compensating controller based on communication control |
| 09/17/2008 | CN201118241Y Harmonic-resistant reactive-load compensation controller |
| 09/17/2008 | CN201118240Y Wind power generation high voltage dynamic filtering compensation apparatus |
| 09/17/2008 | CN201118239Y Alternating current main filtering capacitance modular structure |
| 09/17/2008 | CN201118238Y Mixed type electric power filter |
| 09/17/2008 | CN201118237Y Harmonic-eliminating filtering intelligent compensation apparatus |
| 09/17/2008 | CN201118236Y Segmental start-up sequence control circuit |
| 09/17/2008 | CN201118235Y Combined frequency conversion-type electricity saver |
| 09/17/2008 | CN201118234Y Integrated power saving protector constituted by three types of electricity economizer |
| 09/17/2008 | CN201118233Y Integrated power saving protector constituted by three types of electricity economizer |
| 09/17/2008 | CN201118232Y Integrated power saving protector constituted by three types of electricity economizer |
| 09/17/2008 | CN201118231Y Integrated power saving protector constituted by three types of electricity economizer |
| 09/17/2008 | CN201118230Y Integrated power saving protector constituted by three types of electricity economizer |
| 09/17/2008 | CN201118229Y Integrated power saving protector constituted by three types of electricity economizer |
| 09/17/2008 | CN201118118Y Metallurgical electric stove low-voltage reactive compensator cabinet body |
| 09/17/2008 | CN201118117Y Metallurgical electric stove low-voltage reactive compensator outer housing |
| 09/17/2008 | CN201118104Y Electrical distribution integrated monitoring apparatus |
| 09/17/2008 | CN101268586A 接地电极 Grounding electrode |
| 09/17/2008 | CN101267117A A speed-varying frequency constant dual feedback wind power generation system and its parallel control method |
| 09/17/2008 | CN101267116A An automatic method for power quality interference source of distribution grid |
| 09/17/2008 | CN101267115A Control method of transformer station voltage for realizing comprehensive coordination of continuous device and discrete device |
| 09/17/2008 | CN101267114A Control method for power plant and transformer station coordination voltage based on real time update of coordination restraint |
| 09/17/2008 | CN100420118C Method for operating a wind turbine during a disturbance in the grid |
| 09/17/2008 | CN100420117C Method for controlling reactive power and device for generating electrical energy in electrical network |
| 09/16/2008 | US7425818 Apparatus for connecting a prime mover driven alternator to a circuit with an existing alternating current |
| 09/16/2008 | US7425780 Safety interface system |
| 09/16/2008 | US7425779 Parallel redundant power system and the control method for the same |
| 09/13/2008 | CA2624035A1 Solar module |
| 09/12/2008 | WO2008109265A1 Inverter based storage in dynamic distribution systems including distributed energy resources |
| 09/12/2008 | WO2008109264A1 Control of combined storage and generation in distributed energy resources |
| 09/12/2008 | WO2008109263A1 Non-inverter based distributed energy resource for use in a dynamic distribution system |
| 09/12/2008 | WO2008108855A1 System and method for demand limiting resistive load management |
| 09/12/2008 | WO2008107214A1 An apparatus and method for controlling electrical power usage |
| 09/11/2008 | US20080218148 Intelligent Power Control |
| 09/11/2008 | US20080218003 Switch and System for Controlling Electric Loads |
| 09/11/2008 | US20080217995 Power Cable Line |
| 09/10/2008 | EP1966869A2 Device for storing energy, and use of such a device to store energy |
| 09/10/2008 | EP1966868A1 Balancing device |
| 09/10/2008 | EP1966867A1 Thyristor controlled series capacitor module |
| 09/10/2008 | EP1966807A1 Cooling of high voltage devices |
| 09/10/2008 | EP1966040A1 Method for operating an energy system of a ship and energy system suitable therefor |
| 09/10/2008 | CN201115047Y Installation box for power electromagnetic interference filtering circuit |
| 09/10/2008 | CN201113915Y Elevator energy-saving inversion control technique device |
| 09/10/2008 | CN201113911Y Ship-mounted multi- frequency converter system based on public DC bus |
| 09/10/2008 | CN201113900Y Circuit for enhancing electric motor power factor |
| 09/10/2008 | CN201113899Y Constant-current energy-saving phase advancer |
| 09/10/2008 | CN201113890Y Constant magnetic flux transmission and distribution transformer |
| 09/10/2008 | CN201113835Y Grid-connected dwelling full-automatic solar energy power supply heating apparatus |
| 09/10/2008 | CN201113564Y Frequency conversion compressor energy regeneration control device |
| 09/10/2008 | CN201113527Y Accumulator charger output voltage autocompensation device |
| 09/10/2008 | CN201113458Y Multipath output energy supply merge type energy feedback circuit |
| 09/10/2008 | CN201113457Y Multipath out switch energy supply wide region energy feedback circuit |
| 09/10/2008 | CN201113456Y Double-layer power driven all-train inverter parallel arrangement |
| 09/10/2008 | CN201113455Y Wind and light complementary grid-connected system |
| 09/10/2008 | CN201113454Y Elevator energy-saving inversion synchronous technology device |
| 09/10/2008 | CN201113453Y Grid-connected chain type converter chain element control power source device |
| 09/10/2008 | CN201113452Y Restricted surge switching device |
| 09/10/2008 | CN201113451Y High voltage reactive-load autocompensation apparatus |
| 09/10/2008 | CN201113450Y Electric power reactive-load compensation energy-saving apparatus |