| Patents for H02J 3 - Circuit arrangements for ac mains or ac distribution networks (38,663) |
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| 07/05/2007 | WO2007075057A1 An apparatus of hybrid filter type for reduction of harmonic frequency |
| 07/05/2007 | WO2007073980A1 Method for operating an energy system of a ship and energy system suitable therefor |
| 07/05/2007 | US20070152505 Multiple-output power device, and mobile device using the same |
| 07/05/2007 | DE102005062583A1 Verfahren zum Betrieb eines Energiesystems eines Schiffes sowie dafür geeignetes Energiesystem A method of operating a power system of a ship and care for your energy system |
| 07/04/2007 | EP1804372A2 Electric power converting device and power converting method for controlling doubly-fed induction generator |
| 07/04/2007 | EP1803932A1 Method and device for preventing the disconnection of an electric power generating plant from the electrical grid |
| 07/04/2007 | EP1802866A1 Wind park with robust reactive power adjustment system and method for the operation thereof |
| 07/04/2007 | CN2919643Y Minitype windmill network combining convertor |
| 07/04/2007 | CN2919642Y Static reactive power compensator with function of real-time monitoring, displaying and wave-recording |
| 07/04/2007 | CN2919097Y Electricity saving device of split-type air conditioner |
| 07/04/2007 | CN1992507A Electric saver of three-phase ac motor |
| 07/04/2007 | CN1992496A Control structure of double-fed AC-DC-AC converter for wind power generation |
| 07/04/2007 | CN1992465A Power balancing of multiple synchronized generators |
| 07/04/2007 | CN1992464A Control system of wind turbines |
| 07/04/2007 | CN1324794C Parallel synchronous phase locking method of uninterrupted power source |
| 07/04/2007 | CN1324780C Electronic equipment with remote controller and protective casing and its power source controlling method |
| 07/03/2007 | USRE39710 System for providing assured power to a critical load |
| 07/03/2007 | US7239045 Power distribution system and control system for same |
| 07/03/2007 | US7239042 Control circuit configurable based on characteristics of commercial power source and image forming apparatus using same |
| 07/03/2007 | CA2523574C Power generation system |
| 07/03/2007 | CA2394853C A three stage power conditioning circuit |
| 06/28/2007 | WO2007073256A1 Hvdc system |
| 06/28/2007 | WO2007072517A1 A system for producing electric power from renewable sources and a control method thereof |
| 06/28/2007 | US20070150215 Method and apparatus for preventing overloads of power distribution networks |
| 06/28/2007 | US20070145829 Voltage regulating circuit for uninterruptible power supply |
| 06/28/2007 | US20070145826 System and architecture for controlling lighting through a low-voltage bus |
| 06/28/2007 | US20070144766 Electrical power system suppressing corona discharge from viewpoint of environment |
| 06/27/2007 | EP1801950A2 Distributed generation control system and method |
| 06/27/2007 | EP1800391A2 A direct current power transmission system and associated control method |
| 06/27/2007 | EP1800379A1 Method for controlling the quality of the electron energy of an electrical power supply system |
| 06/27/2007 | CN2917086Y Renewable energy feedback netting circuit and its control device |
| 06/27/2007 | CN2917058Y Thyristor triggered controller for dynamic reactive compensation |
| 06/27/2007 | CN1988364A Overlapped double rotor generator and its speed changing and frequency changing exciting system |
| 06/27/2007 | CN1988320A Accumulator control method for photovoltaic parallel in system |
| 06/27/2007 | CN1988310A Current source type photovoltiac parallel-in system and its control device and method |
| 06/27/2007 | CN1988309A No distortion digital differential filtering method |
| 06/27/2007 | CN1987712A Power factor auto-adjusting device |
| 06/27/2007 | CN1987511A Hormonic current and inductive reactive power generator |
| 06/27/2007 | CN1987211A Solar energy-ground source united heat supply, hot water supply, power supply and refrigerating system and its operation method |
| 06/27/2007 | CN1323478C Reactive optimizing method of power system based on coordinate evolution |
| 06/27/2007 | CN1323477C High-capacity tandem type active electric power filter |
| 06/26/2007 | US7236959 Method for collectively receiving at high voltage and distributing at low voltage, and collective housing using same |
| 06/26/2007 | US7236898 System and method for calculating real-time voltage stability risk index in power system using time series data |
| 06/26/2007 | US7236896 Load management in a power system |
| 06/26/2007 | US7236856 Operation-assisting system and operation-assisting computer program |
| 06/26/2007 | US7235900 Switching apparatus and method for varying a phase line impedance of an electric power transport line section |
| 06/26/2007 | US7235899 Switching constant-current power supply system |
| 06/26/2007 | US7235891 Power system having generator driven by engine |
| 06/21/2007 | WO2007068532A1 Converter system comprising converter modules that can be plugged together |
| 06/21/2007 | WO2007068514A1 Hybrid propulsion system for a watercraft |
| 06/21/2007 | US20070143046 Multi-utility energy control and facility automation system with dashboard having a plurality of interface gateways |
| 06/21/2007 | US20070142975 Model based optimization of a single or multiple power generating units |
| 06/21/2007 | US20070138871 Zero voltage switching (ZVS) in a power converter |
| 06/21/2007 | US20070138870 Multi-output switching power supply |
| 06/21/2007 | US20070138867 Apparatus for adjusting phase between the different phases in power line communication system |
| 06/21/2007 | DE102005060313A1 Computer-based network e.g. rail network, management and/or control system, has program control storing data objects assigned to connecting units in data bank, where objects of connecting units are linked with data objects of node units |
| 06/21/2007 | CA2634583A1 Location determination of power system disturbances based on frequency responses of the system |
| 06/20/2007 | EP1798837A2 Electrical power generation system and method for generating electrical power |
| 06/20/2007 | EP1798836A1 Power balancing of multiple synchronized generators |
| 06/20/2007 | EP1798798A1 Power supply control apparatus and method for line connection type fuel cell system |
| 06/20/2007 | EP1798797A1 Power supply apparatus and method for line connection type fuel cell system |
| 06/20/2007 | EP1798483A2 Fume extracting hood |
| 06/20/2007 | CN2914445Y Combined type triphase solar energy photovoltaic network-combining generating plant |
| 06/20/2007 | CN2914444Y Voltage regulating type low-voltage wattless compensator device |
| 06/20/2007 | CN1985430A Method for controlling an electronic power converter that is connected to a direct-current source |
| 06/20/2007 | CN1985423A Bi-directional energy conversion system |
| 06/20/2007 | CN1982851A Encoder device and method |
| 06/20/2007 | CN1982703A System and method for integrating wind power generation and pumped hydro energy storage systems |
| 06/20/2007 | CN1322650C Distributive continuous reactive generator |
| 06/20/2007 | CN1322649C Household power saver |
| 06/19/2007 | US7233843 Real-time performance monitoring and management system |
| 06/19/2007 | US7233082 Interconnecting power generation system |
| 06/19/2007 | US7233081 Power-supply device |
| 06/16/2007 | CA2571300A1 Power balancing of multiple synchronized generators |
| 06/14/2007 | WO2007066707A1 Converter for recovering electric power |
| 06/14/2007 | WO2007065383A1 Electrical energy transmission device |
| 06/14/2007 | WO2006087602A3 Power supply control |
| 06/14/2007 | US20070136766 Cross-phase adapter for powerline communications (PLC) network |
| 06/14/2007 | US20070135973 System for controlling electrically-powered devices in an integrated wireless network |
| 06/14/2007 | US20070135971 Integrated protection, monitoring, and control system |
| 06/14/2007 | US20070132316 Method for pulse width modulated control of a plurality of load elements |
| 06/14/2007 | DE102005056084A1 Electrical energy controlling and public power supply`s load structure harmonizing method, involves accomplishing power requirement prediction by central processor from sum of all decentralized available standard energies |
| 06/14/2007 | CA2632414A1 Electrical energy transmission device |
| 06/13/2007 | EP1796262A1 Control apparatus for electric vehicles |
| 06/13/2007 | EP1796241A2 Power controlling apparatus for fuel cell system and method thereof |
| 06/13/2007 | EP1796240A2 Power supply apparatus and method for line connected fuel cell system |
| 06/13/2007 | EP1794861A1 Electric power flow control |
| 06/13/2007 | EP1794448A1 Regenerative energy system |
| 06/13/2007 | CN2912115Y General power digital-control platform based on high speed embedded digital signal processing |
| 06/13/2007 | CN2912102Y High voltage electricity saving apparatus |
| 06/13/2007 | CN2912022Y Single-phase embedding transformer cabinet |
| 06/13/2007 | CN1981416A Energy supply method and system |
| 06/13/2007 | CN1981198A Power consumption measuring device and power control system |
| 06/13/2007 | CN1980028A Power factor correction circuit adopting coupled induction |
| 06/13/2007 | CN1980000A 电源供给系统 Power supply system |
| 06/13/2007 | CN1979993A Power-less compensation control method |
| 06/13/2007 | CN1321428C High-speed low-harmonic controllable reactor |
| 06/13/2007 | CN1321398C Utility usage rate monitor |
| 06/13/2007 | CN1321356C Arcless compensation type single-phase voltage regulating and stabilizing device |
| 06/12/2007 | US7231283 Method for regulating the power supply of a number of multiple field devices |