Patents for H02J 3 - Circuit arrangements for ac mains or ac distribution networks (38,663)
04/2006
04/05/2006CN1756022A Method for improving output efficiency of transmission line and kinetic high-temperature superconductive transformer
04/01/2006CA2521930A1 Method and apparatus for cycle error correction for a power converter device, such as an electronic power inverter
03/2006
03/30/2006WO2006034237A1 Digital pulse width modulated controller
03/30/2006WO2006032685A1 Regenerative energy system
03/30/2006US20060066151 Setting device of control system
03/30/2006US20060066112 Turbogenerator/motor controller with ancillary energy storage/discharge
03/30/2006DE102005037416A1 Kombinierte Stromhysterese- und Spannungshysteresesteuerung für einen Leitungswandler Combined Stromhysterese- and Spannungshysteresesteuerung for a cable converter
03/29/2006EP1641098A1 Motor drive system
03/29/2006EP1131736B1 A virtual modular relay device
03/29/2006CN2768274Y High-voltage power supply circuitry real-time diagnosis control device
03/29/2006CN2768273Y Novel generator control protection screen
03/29/2006CN2768272Y Household electricity-saving machine
03/29/2006CN1754292A Coal energy utilization system having superconducting power transmission
03/29/2006CN1753270A Software structure of stationary reactive compensator monitoring system and its monitoring method
03/29/2006CN1753269A Stationary reactive compensation monitoring platform with layered distribution type structure
03/29/2006CN1752883A Stationary reactive compensator monitoring system up position machine software layout method and graphic interface structure
03/28/2006US7019987 Inverter
03/28/2006US7019495 Inter-regulator control of multiple electric power sources
03/23/2006WO2006030603A1 Cogeneration system
03/23/2006US20060062034 Power conditioning system for energy sources
03/23/2006US20060061214 System and method for controlling output-timing parameters of power converters
03/22/2006EP1638199A1 Motor drive system
03/22/2006EP1638196A2 Device for feeding variable loads
03/22/2006EP1638184A2 Power controller
03/22/2006EP1638089A2 A method and a system for trading energy contracts in an exchange
03/22/2006CN1750378A Method for determining reverse current device work voltage
03/22/2006CN1750354A Combination current hysteresis and voltage hysteresis control for a power converter
03/22/2006CN1750353A Electric system harmonic suppressing method and its device based on full analogue device
03/22/2006CN1750352A Active harmonic suppressor
03/22/2006CN1246945C System connection power generator
03/21/2006US7017055 Hub that can supply power actively
03/21/2006US7015599 Backup power management system and method of operating the same
03/21/2006US7015597 Power regulator for power inverter
03/16/2006US20060056120 Coal energy utilization system having superconducting power transmission
03/16/2006US20060055246 Method and arrangement for controlling a switching connection between the electrical outputs of a fuel cell and an isolated electrical network
03/16/2006US20060054135 Engine cogeneration system
03/16/2006DE102005037372A1 Assembly for supplying electrical energy to measuring device e.g. for HV installations, has symmetrically divided primary side with point of division placed at high voltage potential
03/15/2006EP1635286A1 Energy management system
03/15/2006EP1634365A2 Wind farm
03/15/2006EP1634356A1 Frequency based power monitoring and management
03/15/2006CN2765364Y Reactive power monitoring and split phase compensating device
03/15/2006CN1748349A Power supply apparatus
03/15/2006CN1747275A Pulse width modulating controller of non-work compensator of transformer
03/15/2006CN1747274A Predicting control of active power filter
03/14/2006US7012409 Power converter circuit and associated triggering method for generators with dynamically variable power output
03/09/2006WO2005046033A3 Multiple input dc-dc power converter
03/09/2006US20060052922 Mobile energy management system
03/09/2006US20060052905 Power Control system
03/09/2006CA2576809A1 Power control of an induction machine
03/08/2006EP1633030A1 Generator system
03/08/2006EP1631973A1 Magnetic core and device with cooling capabilities
03/08/2006EP0803146B1 Structure and method for performing active injection mode filtering on an ac power system
03/08/2006CN2764035Y Anti-interference electromagnetic filter
03/07/2006US7010363 Electrical appliance energy consumption control methods and electrical energy consumption systems
03/07/2006US7009493 Electronic device with paging for energy curtailment and code generation for manual verification of curtailment
03/07/2006US7009379 Electricity meter with power supply load management
03/07/2006US7009312 Versatile modular programmable power system for wireline logging
03/02/2006WO2006024007A1 Electrical power distribution system and method with active load control
03/02/2006WO2006023426A2 Automotive electrical system configuration using a two bus structure
03/02/2006WO2006021793A1 Transformers
03/02/2006WO2006021414A1 Transferring electric energy between converters
03/02/2006US20060047370 Efficient look-ahead load margin and voltage profiles contingency analysis using a tangent vector index method
03/02/2006US20060047369 Aggregation of distributed energy resources
03/02/2006US20060044850 Active type harmonic suppression apparatus
03/02/2006US20060044846 Method and apparatus for providing uninterruptible power
03/02/2006US20060044720 Apparatus and method for modifying a power flow in a section of an electric power line
03/02/2006US20060043944 Detection of the supply state of a load supplied by a variable voltage
03/02/2006US20060043941 Reactive power compensator
03/02/2006US20060043938 Automotive electrical system configuration using a two bus structure
03/02/2006US20060043797 Method and apparatus for providing uninterruptible power
03/02/2006CA2613593A1 Device for controlling power distribution to subsystems
03/02/2006CA2577936A1 Transformers
03/01/2006EP1309902A4 System and method for monitoring and controlling energy distribution
03/01/2006EP1220412B1 Method and device for controlling and monitoring consumption of electrical power
03/01/2006CN2762419Y Parallel network photovoltaic inversion system
03/01/2006CN2762418Y Power factor correction power module structure device
03/01/2006CN2762417Y Intelligent power factor correction control circuit
03/01/2006CN2762416Y Large capacity parallel active filter
03/01/2006CN1742417A A device and a method for control of power flow in a transmission line
03/01/2006CN1741344A Voltage regulating compensating device
03/01/2006CN1741343A Three-phase three-wire type active electric filter
02/2006
02/28/2006US7007179 Electric load management center
02/28/2006US7005867 Power supply circuit and testing device
02/23/2006WO2006018414A1 Device for the safe isolation of a nuclear power plant from a supply mains during a mains failure
02/23/2006DE102004038741A1 Verfahren zum Verwalten des Energiebedarfs elektrischer Verbraucher in einem elektrischen Netz A method for managing the energy consumption of electrical loads in an electrical network
02/22/2006EP1252697B1 Method and circuit for using polarized device in ac applications
02/22/2006CN1739228A 辅助电源 Auxiliary power
02/22/2006CN1738145A Generator reactive power adjuster and its adjusting flow
02/22/2006CN1738144A Single-phase transformer four-layer IGBT type dynamic reactive compensator
02/22/2006CN1738143A Power network topology error identification method based on mixed state estimation
02/22/2006CN1737878A Power factor compensation experimental kits
02/22/2006CN1737838A Method and apparatus for providing economic analysis of power generation and distribution
02/22/2006CN1243402C Internal compensation winding of AC motor
02/21/2006US7002815 Switching type power converter circuit and method for use therein
02/21/2006US7002321 Automatic power factor correction using power measurement chip
02/21/2006US7002317 Matched reactance machine power-generation system
02/21/2006US7002260 Power control interface between a wind farm and a power transmission system
02/21/2006CA2396396C Method and circuit for using polarized device in ac applications
02/16/2006US20060034054 Power converter cooling
02/16/2006US20060033479 Three-phase three-wire active power filter