| Patents for H02J 3 - Circuit arrangements for ac mains or ac distribution networks (38,663) |
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| 08/05/2009 | CN201286085Y SCR self power supply gate triggering board |
| 08/05/2009 | CN201286020Y Current equalizing circuit parallelly connected with uninterrupted electric power |
| 08/05/2009 | CN201286019Y Electric grid interconnecting 110KW wind and light complementary electricity production system |
| 08/05/2009 | CN201286018Y Electric power filtering compensating electricity economizer |
| 08/05/2009 | CN201286017Y Data collecting apparatus for high voltage passive compensation equipment |
| 08/05/2009 | CN201286016Y Voltage passive control apparatus |
| 08/05/2009 | CN201286015Y Intelligent building electricity saving and distributing apparatus |
| 08/05/2009 | CN101501957A Power system and method for managing charging state in that power system |
| 08/05/2009 | CN101499766A Power generation stabilization control systems and methods |
| 08/05/2009 | CN101499737A Electric switch appartus |
| 08/05/2009 | CN101499728A High voltage frequency conversion apparatus having STATCOM function, control method and control apparatus |
| 08/05/2009 | CN101499716A Single phase power factor correcting analog circuit without need of detecting DC output voltage |
| 08/05/2009 | CN101499715A Single phase power factor correcting digital circuit without need of detecting DC output voltage |
| 08/05/2009 | CN101499667A Apparatus for inhibiting secondary synchronous resonance of turbo generator set |
| 08/05/2009 | CN101499666A Photovoltaic grid connection power generation system based on DC converter and working method thereof |
| 08/05/2009 | CN101499665A Idle grid connection control method for speed variant frequency constant dual feedback asynchronous wind power generator set |
| 08/05/2009 | CN101499664A Low voltage traversing control method for wind power generation set grid-connection current transformer |
| 08/05/2009 | CN101499663A Parallel control method for inverter and inverter therefor |
| 08/05/2009 | CN101499662A Environment friendly reactive power regulator |
| 08/05/2009 | CN101499661A Energy-saving comprehensive protector for oil field |
| 08/05/2009 | CN101499660A DC voltage balance control system for diode clamping cascade multi-level STATCOM |
| 08/05/2009 | CN101499659A Transforming plant distributed state estimation method based on Kirchhoff's current law |
| 08/05/2009 | CN101499658A Network topology analyzing method for electrical power system |
| 08/05/2009 | CN101499373A Magnetic modulating method and apparatus of hollow filter reactor |
| 08/05/2009 | CN101498284A Follow-up hydraulic capacity increasing system and method |
| 07/30/2009 | WO2009093884A1 System of smart contacts and method used in electrical appliances for optimizing the use of electricity and protecting said appliances |
| 07/30/2009 | WO2009092834A1 System and method for controlling a wind farm |
| 07/30/2009 | WO2009075985A3 Apparatuses and methods to connect power sources to an electric power system |
| 07/30/2009 | US20090189575 Method for Measuring an Alternating Current which is Generated Using Inverters, and Arrangement for Carrying out the Method |
| 07/30/2009 | US20090189460 Portable power source to provide power to an electronic device via an interface |
| 07/30/2009 | US20090189455 Solid state power controller (sspc) used as bus tie breaker in electrical power distribution systems |
| 07/30/2009 | US20090189454 Reference voltage generation circuit and start-up control method therefor |
| 07/30/2009 | US20090189452 System and Method for Creating a Networked Infrastructure Distribution Platform of Small Fixed and Vehicle Based Wind Energy Gathering Devices Along Roadways |
| 07/30/2009 | US20090189448 Device and method for addressing power to a load selected from a plurality of loads |
| 07/30/2009 | DE102008015437B3 Symmetrierungsanordnung für parallele Strombahnen Symmetrization arrangement for parallel current paths |
| 07/30/2009 | DE102008006311A1 Direct current transmitting and distributing method for end consumer of network, involves transforming rotating current energy into direct current energy under maintenance of ripple, and realizing bridge circuit for rectification |
| 07/29/2009 | EP2083228A1 System with flicker control and method for reducing flicker generated by a system |
| 07/29/2009 | CN201282342Y Wind power generation parallel converter power control system |
| 07/29/2009 | CN201282341Y Contactless controlled silicon module for compensation apparatus |
| 07/29/2009 | CN201282340Y Magnetic valve type controllable inductor type SVC dynamic reactive compensator |
| 07/29/2009 | CN201282339Y Series hybrid active electric filter device |
| 07/29/2009 | CN201282338Y Intelligent whole-digital low-voltage filtering compensation apparatus |
| 07/29/2009 | CN201282337Y Device for electricity energy transmission by high-voltage transmission line |
| 07/29/2009 | CN201282336Y Impact load modeling system based on actual measurement |
| 07/29/2009 | CN101496250A Converter control unit using time-stamped voltage or current phasors |
| 07/29/2009 | CN101496249A Method and system of real time management and modulation of electricity consumption |
| 07/29/2009 | CN101494386A Capacitance coupling type photovoltaic parallel system |
| 07/29/2009 | CN101494385A Solar photovoltaic parallel inverter control system based on LCL filtering |
| 07/29/2009 | CN101494384A Control circuit for multi-machine parallel connection of sine-wave generator and multi-machine parallel connection system |
| 07/29/2009 | CN101494383A Control method for parallel connection system of inverter |
| 07/29/2009 | CN101494382A Large-capacity stillness wattless occurrence apparatus |
| 07/29/2009 | CN101494381A Prepositive system for testing casting and switching of capacitor bank |
| 07/29/2009 | CN100521471C DC/DC converter and decentralized power generation system comprising a DC/DC converter |
| 07/29/2009 | CN100521443C Excitation control method based on non linear robust power system stabilizer |
| 07/29/2009 | CN100521442C Power factor correcting converter |
| 07/29/2009 | CN100521441C Voltage change compensator |
| 07/28/2009 | US7566992 Method and apparatus for operation of a power station |
| 07/28/2009 | US7566988 Method and apparatus for monitoring UPS power sources |
| 07/28/2009 | US7566987 Method of powering up a plurality of loads in sequence |
| 07/28/2009 | US7566986 Selection line and serial control of remote operated devices in an integrated power distribution system |
| 07/24/2009 | CA2651146A1 System with flicker control and method for reducing flicker generated by a system |
| 07/23/2009 | WO2009090889A1 Three-phase four-cable power distribution system and method for installing balancer in the system |
| 07/23/2009 | WO2009089670A1 Method of coordinated operation for turbine-generator shafts torsional vibration protection |
| 07/23/2009 | WO2009054942A3 Methods, circuits, and computer program products for generation following load management |
| 07/23/2009 | WO2009052908A3 Photovoltaic generator system |
| 07/23/2009 | WO2009033955A3 Method for operating an energy supply network |
| 07/23/2009 | US20090184584 Circuit arrangement having a power supply unit |
| 07/22/2009 | EP2081273A2 System and method for providing power distribution system information |
| 07/22/2009 | EP2081272A2 A system for controlling power supply to a load |
| 07/22/2009 | EP2080420A2 Method of load shedding to reduce the total power consumption of a load control system |
| 07/22/2009 | CN101488667A Power supply method for large sponge titanium smelting total transforming plant |
| 07/22/2009 | CN100518226C Energy source dispensing control system and dispensing control method |
| 07/22/2009 | CN100517904C Intelligent electricity saver in use for three-phase AC electrical supply system |
| 07/21/2009 | US7565459 Combination I/O modules in a modular automation controller |
| 07/21/2009 | US7564667 Electric circuit breaker |
| 07/21/2009 | US7564227 Power supply for a load control |
| 07/21/2009 | US7564149 Sequentially-controlled solar array power system with maximum power tracking |
| 07/21/2009 | US7564147 Electrical power distribution system and method with active load control |
| 07/16/2009 | WO2009087275A2 Electric power supply apparatus for use in vessels |
| 07/16/2009 | WO2009086698A1 Power supply distributor |
| 07/16/2009 | US20090182508 Efficient Transmission of Electricity From a Wind Farm Located Remote From a Power Grid |
| 07/16/2009 | US20090179503 Power transfer apparatus and functional module |
| 07/16/2009 | US20090179495 Solar power supplying device |
| 07/16/2009 | US20090179490 Power supply controlling apparatus and computer readable medium |
| 07/15/2009 | EP2079143A2 Method of determining voltage stability margin for load shedding within an electrical power system |
| 07/15/2009 | CN201274411Y Lightning protecting energy saving controller |
| 07/15/2009 | CN101485060A Power control device |
| 07/15/2009 | CN101483346A Group control method for multi-inverter solar photovoltaic grid-connection electricity generating system |
| 07/15/2009 | CN101483345A Control method for photovoltaic grid connection inverter with wide input range |
| 07/15/2009 | CN101483344A Wind power installation and method of operating it |
| 07/15/2009 | CN101483343A Method for identifying synthetic load equal value motor by asymmetric operation and frequency offset information |
| 07/15/2009 | CN101483342A Geographical information system used for electric system |
| 07/14/2009 | US7561977 Total home energy management system |
| 07/14/2009 | US7561681 Interactive system for managing and remotely connecting customer utility loads |
| 07/14/2009 | US7561451 Power converter apparatus and methods using a phase reference derived from a DC bus voltage |
| 07/14/2009 | US7560906 Electrical power generation system |
| 07/14/2009 | US7560832 Power supply and related systems and methods |
| 07/14/2009 | US7560829 Power system using multiple battery pack types |
| 07/14/2009 | CA2649433A1 Transfer switch controller providing an alternating current voltage to a generator and transfer switch including the same |
| 07/09/2009 | WO2009085836A2 System and method for operating and powering an electronic device |