| Patents for H02J 3 - Circuit arrangements for ac mains or ac distribution networks (38,663) |
|---|
| 03/12/2009 | WO2009031002A2 System for simultaneously producing electric and thermal energy |
| 03/12/2009 | WO2009030275A1 Voltage source converter for high voltage direct current power transmission |
| 03/12/2009 | WO2008144548A3 Photovoltaic module-mounted ac inverter |
| 03/12/2009 | WO2005124959A3 Device for the transmission of electrical energy between supply networks |
| 03/12/2009 | US20090069950 Electric power control apparatus, power generation system and power grid system |
| 03/12/2009 | US20090066163 Two-source series inverter |
| 03/12/2009 | US20090066162 On-chip power supply voltage regulation |
| 03/12/2009 | US20090066159 Voltage supply device having a plurality of generators connected in parallel |
| 03/12/2009 | US20090066158 Load Driving apparatus |
| 03/12/2009 | DE102007055517A1 Verfahren zum Betreiben eines Energieversorgungsnetzwerks Method for operating an energy supply network |
| 03/12/2009 | DE102005020519B4 Haushaltgerät mit einer Steuereinrichtung und Verfahren zum Betreiben eines Haushaltgerätes Domestic appliance with a control device and method for operating a household appliance |
| 03/11/2009 | EP2034323A2 Method and apparatus for detecting impairment of a solar array |
| 03/11/2009 | EP2033292A1 Modular hvdc converter |
| 03/11/2009 | EP2033291A1 Method and apparatus for temperature-based load management metering in an electric power system |
| 03/11/2009 | EP1901419B1 Generator system |
| 03/11/2009 | CN201207571Y Complementary system of thin-film cell photovoltaic power station and wind electric field |
| 03/11/2009 | CN201207570Y Capacitive passive dynamic continuous regulating device for electricity distribution network |
| 03/11/2009 | CN201207569Y Three phase four bridge arm dynamic passive generating apparatus |
| 03/11/2009 | CN201207568Y High-voltage apparatus |
| 03/11/2009 | CN101385213A Establishing switchyard zones of a high or medium voltage switchyard |
| 03/11/2009 | CN101383580A Low voltage traversing control method for double feeding wind power generator when short circuit failure of electric network |
| 03/11/2009 | CN101383576A Method for large-sized wind-driven generator group to get through low voltage failure of electric network |
| 03/11/2009 | CN101383554A Common mode/differential mode electromagnetic interference noise separating network |
| 03/11/2009 | CN101383515A Diesel-electric set digital joint control apparatus for oil drilling rig |
| 03/11/2009 | CN101383514A Ups device |
| 03/11/2009 | CN101383513A Single-phase power factor correcting single cycle controller |
| 03/11/2009 | CN101383512A Method for suppressing transient voltage jitter by static reactive compensator |
| 03/11/2009 | CN101383511A Electrical power system status estimation method based on measurement data by data collection system |
| 03/11/2009 | CN101383510A Device and method for electricity energy transmission by high-voltage transmission line |
| 03/11/2009 | CN101383220A Dry magnet controlled reactor |
| 03/11/2009 | CN101382969A Multi-step step length variable electromagnetical transient emulation method |
| 03/11/2009 | CN100468922C Wind power plant |
| 03/11/2009 | CN100468909C External multi-energy distribution energy-saving system for oil field pumping unit |
| 03/11/2009 | CN100468908C Rotary electromagnetic type uniform tidal current controller |
| 03/11/2009 | CN100468279C External clock to obtain multiple synchronized computers |
| 03/11/2009 | CN100468274C Power factor adjusting device |
| 03/10/2009 | US7502668 Generator controller |
| 03/10/2009 | US7502233 DC power supply using either AC or DC input for both |
| 03/10/2009 | US7501716 Power supply apparatus |
| 03/05/2009 | WO2009029777A1 Automated peak demand controller |
| 03/05/2009 | US20090058196 Circuit having emi and current leakage to ground control circuit |
| 03/05/2009 | US20090058185 Intelligent Infrastructure Power Supply Control System |
| 03/05/2009 | US20090058183 Power source for aircraft engine controller systems |
| 03/05/2009 | US20090058097 Electric power supply system |
| 03/05/2009 | DE102007041248A1 Vorrichtung zur Erkennung einer Lastunsymmetrie in einem Drehstromnetz An apparatus for detecting a Lastunsymmetrie in a three-phase system |
| 03/04/2009 | EP2030299A1 Inverter for feeding electrical energy into a power supply system |
| 03/04/2009 | EP2030298A1 Inverter for power supply system feeding into an ac power supply system |
| 03/04/2009 | CN201204470Y Differential protection reactive power on-the-spot compensation apparatus |
| 03/04/2009 | CN201204469Y Intelligent electronic type soft phase advancer |
| 03/04/2009 | CN201204468Y Control switch device for capacitor |
| 03/04/2009 | CN201204467Y Altogether-division-compensation capacitor module |
| 03/04/2009 | CN201204466Y Altogether-compensation capacitor module |
| 03/04/2009 | CN201204465Y Division compensation capacitor module |
| 03/04/2009 | CN201204464Y 电容器投切模块 Capacitor switching module |
| 03/04/2009 | CN201204463Y 电容器投切模块 Capacitor switching module |
| 03/04/2009 | CN201204462Y Control execution module |
| 03/04/2009 | CN201204461Y Intelligent low-voltage reactive compensation synthesis module |
| 03/04/2009 | CN201204460Y Automatic switching device for high-voltage capacitor |
| 03/04/2009 | CN201204459Y Intelligent multi-bench control low-voltage automatic reactive compensator |
| 03/04/2009 | CN201204458Y Intelligent whole-digital low-voltage filtering compensation apparatus |
| 03/04/2009 | CN201204457Y Power distribution system with thrice wave-stopping device |
| 03/04/2009 | CN201204456Y Power distribution system capable of filtering five and seven harmonic |
| 03/04/2009 | CN201204455Y Five, seven filter |
| 03/04/2009 | CN201204454Y Active wave-filtering circuit |
| 03/04/2009 | CN201204401Y Plug-in capacitance compensation device for cart |
| 03/04/2009 | CN100466431C Compensating method for active power filter inverter harmonic domain dead zone effect |
| 03/04/2009 | CN100466413C Multi-variant control method of the distribution static reactive power generator |
| 03/04/2009 | CN100466412C United accident-prevention rehearse method for provincial and city power system |
| 03/03/2009 | US7498695 More compact and higher reliability power source system |
| 03/03/2009 | US7498694 Power management system with multiple power sources |
| 03/03/2009 | US7498693 More compact and higher reliability power source system |
| 03/03/2009 | US7498690 System and method for regulating power in a multiple-output switching converter |
| 02/26/2009 | WO2009024833A1 Control of active power reserve in a wind-farm |
| 02/26/2009 | WO2008153735A3 Power system with multiple generator units |
| 02/26/2009 | US20090055527 Section identification and distribution system monitoring system, method and program product |
| 02/26/2009 | US20090051344 Triac/scr-based energy savings device, system and method |
| 02/26/2009 | US20090051220 Polyphase power distribution and monitoring apparatus |
| 02/26/2009 | DE102008024222A1 Method for supplying of controlled power within power supply area of electric utility for frequency stabilization of electric transmission network, involves connecting uninterrupted power supply system and rectifier system with controller |
| 02/25/2009 | EP2028758A1 Engine having power bus fault short circuit control with a disconnection switch |
| 02/25/2009 | EP2028368A2 Wind farm with a number of wind plants and method for operating a wind farm |
| 02/25/2009 | EP2027647A1 Device for feeding electric energy into a power grid and dc converter for such a device |
| 02/25/2009 | EP2027637A2 Method and device for determining the electrical loadability of overhead lines by means of temperature measurement |
| 02/25/2009 | CN201199635Y Electric energy quality synthesis compensation apparatus |
| 02/25/2009 | CN201199634Y Electric network positive-negative reactive compensator |
| 02/25/2009 | CN201199632Y Parallel capacitor apparatus with dual over-voltage protection |
| 02/25/2009 | CN101375481A Harmonic absorber |
| 02/25/2009 | CN101373898A Pure nasty zero sequence filter |
| 02/25/2009 | CN101373897A Control method for double closed-loop cascade in synchronous revolution coordinates system |
| 02/25/2009 | CN101373896A Feeding power utilization system balance energy-saving apparatus and operation method thereof |
| 02/24/2009 | US7495937 PWM cycloconverter |
| 02/24/2009 | US7495355 Method and system for providing auxiliary power for anesthesia delivery and patient monitoring |
| 02/19/2009 | WO2009022198A2 Conditioning device for energy supply networks |
| 02/19/2009 | WO2009021324A1 Controlling power supply to vehicles through a series of electrical outlets |
| 02/19/2009 | WO2008153419A3 Anti-islanding system |
| 02/19/2009 | US20090045803 System and Method for Premises Power Parameter and Power-Factor Reporting and Management |
| 02/19/2009 | US20090045679 Integrated Circuit and Method of Operating the Same |
| 02/19/2009 | US20090045678 Method and Device for Redundantly Supplying Several Electric Servomotors or Drive Motors by Means of a Common Power Electronics Unit |
| 02/19/2009 | DE102007037768A1 Schaltvorrichtung und Verfahren zum Ansteuern eines Verbrauchers Switching device and method for driving a consumer |
| 02/19/2009 | DE102007037277A1 Verfahren und System zur Nachfragesteuerung im Niederspannungsnetz Method and system for demand management in low voltage networks |
| 02/19/2009 | CA2665311A1 Conditioning device for energy supply networks |