Patents
Sitemap › H02 - Generation, conversion, or distribution of electric power › H02J - Circuit arrangements or systems for supplying or distributing electric power; Systems for storing electric energy › 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)
11/2002
11/14/2002WO2002073767A8 A network comprising compensated power cable sections
11/14/2002US20020169523 Control of multiple fuel cell power plants at a site to provide a distributed resource in a utility grid
11/14/2002US20020167298 Power adjustment apparatus
11/14/2002DE10211592A1 Stromanschluss, der abhängig von tarifbezogenen Befehlen programmierbar ist Electricity, which is dependent programmable rate of related commands
11/14/2002DE10119664A1 Anordnung zur automatischen Spannungsregelung und Motorantrieb zur automatischen Spannungsregelung An automatic voltage regulator and motor drive for automatic voltage regulation
11/13/2002CN2520603Y Tracking apparatus of tank transformer power supply system
11/13/2002CN1379524A Power factor control device and method
11/13/2002CN1379523A Voltage fluctuation compensation device
11/13/2002CN1379522A Power fluctuation compensation device
11/13/2002CN1379521A Method and scheme for doing work with reactive component of electric power system
11/12/2002US6479910 Method and circuits for changing the ratings of a three phase circuit by delta-star switching
11/12/2002US6479907 Plant for generating electric power and a method for operation of such a plant
11/08/2002WO2001086143A1 Method for operating a wind power station and wind power station
11/08/2002CA2455144A1 Method for operating a wind power station and wind power station
11/07/2002WO2002089285A1 18-pulse rectification system using a wye-connected autotransformer
11/07/2002US20020162726 Process for switching between main supply and a frequency inverter and vice versa for an escalator drive
11/07/2002DE10118569A1 Circuit arrangement for testing uninterruptible power supplies is connected to the UPS on its input side and connected to the power supply network on its output side via a swing transformer and an equalizing coil
11/06/2002EP1255340A1 Power supply/demand control system
11/06/2002CN1093931C Air conditioner with solar generator
11/05/2002US6476523 Electronic clock and timed outlet strip
11/05/2002US6476521 Power oscillation protection
10/2002
10/31/2002WO2002087062A2 Current inverter
10/31/2002WO2002086647A2 Arrangement for automatically influencing a mains supply and motor drive for said arrangement
10/31/2002WO2002086315A1 Method for operating a wind energy plant
10/31/2002US20020162032 Method, system and computer program for load management
10/31/2002US20020161624 Decision support for automated power trading
10/31/2002US20020158749 Mobile receptacle, power feeding gate device, server device and power usage management system for efficiently delivering electric power
10/31/2002CA2440908A1 Arrangement for automatically influencing a mains supply and motor drive for said arrangement
10/30/2002EP1253694A1 Circuit for reducing harmonic currents in a mono- or multiphase supply network neutral conductor
10/30/2002EP1252697A1 Method and circuit for using polarized device in ac applications
10/30/2002CN1377517A Method for recognizing oscillation in electric supply network
10/29/2002US6473319 Plant for transmitting electric power and a method for changing the direction of power transmission in such a plant
10/29/2002US6472791 Envelope for slip-ring contacting members in high-power rotary current collector system
10/29/2002US6472775 Method and system for eliminating certain harmonics in a distributed power system
10/29/2002US6472774 Device for distributing energy between a plurality of electronic modules with possibility of shedding
10/24/2002WO2002084851A1 Vsc-converter
10/24/2002WO2002084839A2 Generating electricity
10/24/2002WO2002084558A1 Computer assisted and/or implemented process and architecture for web-based monitoring of energy related usage, and client accessibility therefor
10/24/2002WO2002084309A1 Utility usage rate monitor
10/24/2002WO2001080395A3 Power generators and method and device for generating power
10/24/2002US20020153777 Method and system for maintaining full power during a power interruption in a multiple power supply system
10/24/2002EP1194997A4 System with choke in parallel with a/c line for load conditioning
10/24/2002CA2443987A1 Utility usage rate monitor
10/23/2002EP1084325B1 Arrangement for the removal of cuttings and gas arising from drilling operations
10/23/2002CN2518253Y Power metering reactive-load compensation box of low voltage distribution network
10/23/2002CN1375904A Voltage compensating method of serially connected electrical energy quality compensator
10/23/2002CN1375903A Secondary low-voltage compensator for electric furnace
10/22/2002US6469485 Active filter and method for suppressing current harmonics
10/17/2002WO2002081907A1 Method for operating a wind energy plant
10/17/2002WO2002062000A3 Adaptive controller for d-statcom in the stationary reference frame to compensate for reactive and harmonic distortion under unbalanced conditions
10/17/2002US20020149955 Method and apparatus for a solar power conditioner
10/17/2002US20020149953 Unified constant-frequency integration control of three-phase power factor corrected rectifiers, active power filters, and grid-connected inverters
10/17/2002US20020149950 Power conditioner for solar power generation system
10/17/2002US20020149336 Method and system for improving efficiency of rotating, synchronous, electrical machine interacting with power converter
10/17/2002US20020149263 Voltage island fencing
10/17/2002DE10118505A1 Regulating or compensating individual harmonics in current or voltage profiles involves processing fundamental and harmonic oscillations into individual corrective reference values
10/17/2002DE10118504A1 Predictive correction of current or voltage regulator regulation or control errors involves additional implementation of conditioning control depending on transfer function/system equations
10/16/2002EP1249916A1 Operating method and system for voltage drop compensation
10/16/2002EP1249061A1 Dynamic series voltage compensator and method thereof
10/16/2002CN2517162Y Magnetic controllable reactor
10/16/2002CN1375123A System for controlling the delivery of power to DC computer components
10/16/2002CN1374728A Low-voltage reactive power compensating and power-saving device
10/16/2002CN1092856C Method for consitituting actuating component combination quantity
10/16/2002CN1092845C Electrooptical power generating apparatus
10/15/2002US6466466 Stable artificial neutral point in a three phase network of single phase rectifiers
10/15/2002US6465979 Series compensation of electric alternating current machines
10/15/2002US6465912 Power transfer device
10/15/2002US6465911 Power supply system switching device and method of switching between power supply system
10/15/2002US6465910 System for providing assured power to a critical load
10/10/2002US20020145895 Power supply system with AC redundant power sources and safety device
10/10/2002US20020145894 Power supply device having two AC power inputs
10/10/2002US20020145339 Power supply system with AC redundant power sources and DC redundant power supplies
10/10/2002DE10117212A1 Verfahren zum Betrieb einer Windenergieanlage A method of operating a wind power plant
10/10/2002DE10113565C1 Rechnergestütztes Verfahren zum Projektieren eines Leitungssystems Computer-aided method for configuring a line system
10/09/2002EP1248357A2 Predective failure scheme for industrial power delivery system
10/09/2002CN2515855Y Box-type intelligent reactive power compensating device
10/09/2002CN1373401A Voltagre regulator for electric energy transmission and distribution application
10/09/2002CN1373368A Device and method for detecting earthing failure in solar generating system
10/08/2002US6462519 Automatic power factor correction system
10/08/2002US6462518 Converter circuit having an inverter for each phase
10/05/2002CA2343468A1 Computer assisted and/or implemented process and architecture for web-based monitoring of energy related usage, and client accessibility therefor
10/03/2002WO2002078164A1 Method for regulating an inverter system
10/03/2002WO2002078158A2 Active filter for power distribution system with selectable harmonic elimination
10/03/2002WO2002078147A1 Power plant with means for damping power oscillations
10/03/2002WO2002078103A2 Control of multiple fuel cell power plant
10/03/2002WO2002076782A2 Electrical power storage and delivery using magnetic levitation technology
10/03/2002US20020144164 Efficiency-raising and power-saving procedure and its devices
10/03/2002US20020143438 Distributed power generation system, and power supply system and power supply method utilizing the same
10/03/2002US20020141217 Power supply with interface to determine power requirements of devices coupled thereto
10/03/2002US20020140406 Power factor control apparatus and method
10/03/2002US20020140400 System, method and apparatus for controllable power supply
10/03/2002US20020140294 Voltage fluctuation compensating apparatus
10/03/2002US20020140234 System and method for dual mode control of a turbogenerator/motor
10/02/2002EP1246335A2 Power factor control apparatus and method
10/02/2002EP1245076A1 Auxiliary electrical power generation system and method of operating same
10/02/2002CN2514547Y Series voltage regulator for power supply line
10/02/2002CN1372713A Device, system and method for monitoring a household electric appliance
10/02/2002CN1372363A Process for initraling and updating topology for high-voltage or intermediate-voltage power station
10/01/2002US6459559 Thyristor controlled dynamic voltage suppressor for electric power systems
09/2002
09/26/2002WO2002075881A2 Computer-assisted support method for projecting an electric line system
1 ... 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 ... 387