H02J 3 - Circuit arrangements for ac mains or ac distribution networks

Patents for H02J 3 - Circuit arrangements for ac mains or ac distribution networks (38,663)
11/2004
11/17/2004	EP1478074A2 Dynamic economic dispatch
11/17/2004	EP1478073A2 System for monitoring and maintaining the provision of electrical power
11/17/2004	CN2657259Y Electricity-saving device
11/17/2004	CN2657258Y Wide-band passive filter reactive power compensating device
11/17/2004	CN2657257Y Low voltage module capacitance compensating unit
11/17/2004	CN1547302A Method and apparatus for combined tandem type active fundamental wave electric power reactive compensation and filtering
11/16/2004	US6819087 Distributed resource (DR) stabilization control for microgrid applications
11/16/2004	CA2212504C Active harmonic filter and power factor corrector
11/11/2004	US20040225413 Energy evaluation support system, program, information storage medium, and energy evaluation support method
11/11/2004	US20040222701 Solid state relay for switching AC power to a reactive load and method of operating the same
11/11/2004	US20040222640 Power generating apparatus
11/11/2004	DE202004011451U1 Capacitor supported wind power generator has capacitor in or near the generator housing to stabilize the output voltage from the unit
11/10/2004	CN2655501Y Winding asynchronous motor power factor compensating main circuit
11/10/2004	CN2655488Y Integrated compensator for power system
11/10/2004	CN2655480Y Energy-saving electrical appliance controlling cabinet
11/10/2004	CN1545183A Electric energy quality controller for traction transformer station
11/10/2004	CN1175543C Series compensator
11/10/2004	CN1175541C Controller for controlling decoupling of transformer-free reactive series compensator
11/09/2004	US6815934 Induction generator power supply
11/09/2004	US6815932 Detection of islanded behavior and anti-islanding protection of a generator in grid-connected mode
11/08/2004	WO2005048433A2 An ac power generating system
11/04/2004	US20040220869 Method to enable customers to respond to prices in a pool type energey market
11/04/2004	US20040220702 Energy management system
11/04/2004	DE19843100B4 Drehstromkabel Three-phase cable
11/04/2004	DE10136147B4 Photovoltaischer Wechselstromerzeuger Photovoltaic alternator
11/03/2004	EP1472779A2 Voltage source and current source with capacitor
11/03/2004	CN2653774Y High frequency switch power commutating module for communication equipment
11/02/2004	US6813124 Transformer over-current protection with RMS sensing and voltage fold-back
11/02/2004	US6812811 Power discriminating systems
11/02/2004	US6812592 Voltage fluctuation compensating apparatus
10/2004
10/28/2004	WO2004093287A1 Method and sytem for controlling the reactive power of a variable speed drive
10/28/2004	WO2004093286A1 A cellular minigrid
10/28/2004	WO2004093283A1 Electric circuit breaker
10/28/2004	US20040215348 Tie-line flow control system and method for implementing inter-regional transactions
10/28/2004	US20040213023 Off-line non-step adjustment voltage regulator
10/28/2004	US20040212934 Transformer over-current protection with RMS sensing and voltage fold-back
10/28/2004	US20040212355 Off-line non-step voltage regulation uninterruptible power supply
10/28/2004	US20040212194 Home-use fuel cell system
10/28/2004	US20040211459 Photovoltaic power generation system
10/28/2004	DE10317114A1 Circuit for providing neutral conductor in three-phase electrical appliance, e.g. cooker, has three inductances connected to phase lines in star shape, providing neutral line at node point
10/28/2004	CA2522457A1 A cellular minigrid
10/27/2004	EP1471630A2 Three phase machine, apparatus and method for supplying a electrical network
10/27/2004	EP1470627A2 Vehicle
10/27/2004	EP1470517A2 Method and apparatus for preventing overloads of power distribution networks
10/27/2004	CN2652008Y Idle in situ compensator of motor
10/27/2004	CN2652007Y Power supplying system of mobile laboratory
10/27/2004	CN1540832A New type power supply equipment
10/27/2004	CN1540831A Synthetized compensation device in electric power system and synthetized compensation method
10/26/2004	US6810481 Electronic device, control method therefor, and storage medium providing power supply control function
10/26/2004	US6810339 Anti-islanding method and apparatus for distributed power generation
10/26/2004	US6809942 System interconnection electric power generator and control method therefor
10/21/2004	WO2004032305B1 Circuit and fault tolerant assembly including such circuit
10/21/2004	US20040207265 Transformer over-current protection with RMS sensing and voltage fold-back
10/21/2004	US20040207264 Coordinating controller for electric power equipment
10/21/2004	US20040207207 Power control interface between a wind farm and a power transmission system
10/20/2004	EP1469489A1 Power-factor three-phase correction arrangement
10/20/2004	EP1468343A2 System and method for residential emissions trading
10/20/2004	CN1539194A Electrical power saving apparatus and method
10/20/2004	CN1538585A Allocation transformer equipment
10/20/2004	CN1172414C Minimum time controller with controllable serial capacitor compensation and its conrol method
10/19/2004	USRE38625 Static switch method and apparatus
10/19/2004	US6806688 Difference power adjustment apparatus having a capacitor and reactor connected power-system bus
10/19/2004	US6806589 No break electric power transfer system
10/19/2004	CA2392881C Fuel cell system with load management
10/14/2004	WO2004088815A1 Coal energy utilization system by superconducting power transmission
10/14/2004	WO2004088559A2 Method and system for regulating the production of a second form of energy, generated from a first form of energy
10/14/2004	US20040201368 System and method for reducing inrush current in a blade server
10/14/2004	US20040201354 Vsd control
10/14/2004	US20040201283 Parallel power supply system and control method thereof
10/14/2004	US20040201282 Stable power supply system, operation method thereof, and stable power supply operation program
10/14/2004	US20040201221 Wind turbine for producing electrical power and a method of operating the same
10/14/2004	US20040201218 Increasing the efficiency of energy generation with distributed energy storage
10/14/2004	CA2521524A1 Method and system for regulating the production of a second form of energy, generated from a first form of energy
10/14/2004	CA2512741A1 Coal energy utilization system by superconducting power transmission
10/13/2004	EP1467463A1 Wind farm and method for operating same
10/13/2004	EP1467094A1 A wind turbine for producing electrical power and a method of operating the same
10/13/2004	EP1290537B1 Power sequencer control circuit
10/13/2004	EP1228491B1 System for certified use of electrical energy
10/13/2004	CN2648700Y Low frequency high and sub harmonic wave suppressor
10/13/2004	CN1171369C Modular power management system
10/12/2004	US6804128 Current modulation of direct current transmission lines
10/12/2004	US6803679 Parallel redundant power system and method for control of the power system
10/12/2004	CA2323659C Method and system for suppressing a voltage fluctuation in a power system
10/12/2004	CA2132004C Method for interconnecting two synchronous polyphase ac networks and interconnecting apparatus for the same
10/07/2004	US20040199478 Energy and power interchange system and its method
10/07/2004	US20040199299 Tone generating electronic device with paging module for verification of energy curtailment
10/07/2004	US20040199298 Electrical power control system, and method for setting electric state variables and/or parameters in a current conductor
10/07/2004	US20040199297 Generator controller
10/07/2004	US20040196674 Integrated circuit
10/07/2004	US20040196604 Control system for canceling load unbalance of three-phase circuit
10/06/2004	EP1464108A2 Redox flow battery system and method of operating it
10/06/2004	EP1464103A1 Equipment and method for exchanging power, in shunt connection, with an electric power network, and use of such equipment
10/06/2004	CN2646929Y A straight flow generating unit
10/06/2004	CN2646928Y An electric apparatus for eliminating power network pollution
10/06/2004	CN2646927Y Harmonic current suppressor
10/06/2004	CN1535494A Improvement relating to electrical power transmission
10/06/2004	CN1534862A Regulatable voltage equilibrium transformer
10/06/2004	CN1534843A Intelligent railway signal power source switching module
10/05/2004	US6801442 Power conversion apparatus, power conversion system, and islanding operation detection method
10/05/2004	US6800964 Plural configurable DC sources to provide optimal power to plural configurable inverters

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