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)
04/2003
04/03/2003US20030065840 Computer-assisted testing method for a wiring system
04/03/2003US20030063723 Interactive system for managing and remotely connecting customer utility loads
04/03/2003US20030062878 Apparatus and methods for power regulation of electrical loads to provide reduction in power consumption by the electrical loads
04/03/2003US20030062776 Control system for active power filters
04/03/2003US20030062774 Robust controller for controlling a ups in unbalanced operation
04/02/2003CN1407685A Method of operating charger in voltage retainer and apparatus realizing it
04/02/2003CN1104767C Series compensation of electric alternating current machines
04/01/2003US6542791 Load controller and method to enhance effective capacity of a photovotaic power supply using a dynamically determined expected peak loading
03/2003
03/27/2003WO2003026113A1 Apparatus and method for timetabling reality time process
03/27/2003WO2003026094A1 Apparatus and method for active filters
03/27/2003WO2003025898A1 Utility monitoring and management system
03/27/2003WO2003025817A1 An efficient electricity system
03/27/2003WO2003025701A2 Utility capacity transfer system
03/27/2003WO2002078103A3 Control of multiple fuel cell power plant
03/27/2003US20030061143 Efficient electricity system
03/27/2003US20030061091 Systems and methods for making prediction on energy consumption of energy-consuming systems or sites
03/27/2003US20030060907 Control system for a redundant prime mover system
03/27/2003US20030057926 Power generating system including permanent magnet generator and shunt AC regulator
03/27/2003US20030057924 Voltage stabilization control method and voltage stabilization control apparatus
03/27/2003US20030057923 Power generating device
03/27/2003CA2460999A1 An efficient electricity system
03/26/2003EP1296441A1 Power generating arrangement
03/26/2003CN2541985Y General electricity saving device
03/26/2003CN1103650C Roll stand drive arrangement
03/25/2003US6538343 Method for reducing the load imposed on a power source, and apparatus for implementing the method
03/20/2003WO2003023933A1 System for conditioning and generating/storing power in electrical distribution networks in order to improve the dynamic stability and frequency control thereof
03/20/2003WO2003023799A2 Uninterruptible transfer switch
03/20/2003WO2003023675A2 Method and system to calculate a demand for energy
03/20/2003WO2003023530A1 Control system for a redundant prime mover system
03/20/2003US20030055776 Method and apparatus for bundling transmission rights and energy for trading
03/20/2003US20030055677 Utility monitoring and management system
03/20/2003US20030055676 Utility capacity transfer system
03/20/2003US20030053320 Harmonic mitigating method and apparatus
03/20/2003US20030053275 Electrical power control system, and method for setting electric state variables and/or parameters in a current conductor
03/20/2003US20030052542 Electric power demand adjusting system
03/20/2003US20030051476 Power system
03/20/2003CA2459912A1 Control system for a redundant prime mover system
03/19/2003EP1294071A2 Electric power demand adjusting system
03/19/2003CN2540701Y Electric saving machine for motor
03/19/2003CN2540694Y Induction supply unit
03/19/2003CN1404197A Dynamic split-phase compensation method and device for reactive power
03/19/2003CN1404196A Harmonic, reactive and negative sequence comprehensive control method and device for complicated power system
03/19/2003CN1103533C Switching system
03/18/2003US6535797 Electrical distribution system and method of monitoring and/or controlling same
03/18/2003US6535405 Power supply device having two AC power inputs
03/13/2003US20030048005 Advanced power distribution system
03/13/2003US20030048004 Uninterruptible transfer switch
03/13/2003US20030047209 Photovoltaic power generation system with storage batteries
03/12/2003EP1290603A1 Method and system for trade of goods, in particular electricity, water, fuel gas and the like
03/12/2003EP1290537A2 Power sequencer control circuit
03/12/2003CN2540061Y Intelligent low voltage power capacitor
03/12/2003CN1402408A High performance reactive power compensation circuit
03/12/2003CN1402407A harmonic suppression device
03/12/2003CN1402406A Active filter harmonic current test delay time compensation method and system
03/12/2003CN1402405A Pole transformer load monitoring system using wireless internet
03/11/2003US6532398 Method for installing and removing automatic lift-type mobile facility, method of automatic lift-type power generation, and automatic lift-type mobile facility
03/11/2003US6531790 Generator transfer switching system with multiple generator modes
03/06/2003US20030046252 Business management system and method for a deregulated electric power market using suppliers' special offers
03/06/2003US20030045969 Power amount control method and apparatus
03/06/2003US20030045968 Tone generating electronic device with paging module for verification of energy curtailment
03/06/2003US20030043520 Control arrangement and method for power electronic system
03/06/2003US20030042877 Power supply apparatus and method thereof for input harmonic current suppression and output voltage regulation
03/06/2003US20030042798 Multiple power sources control system
03/06/2003DE20121650U1 Windenergieanlage Wind turbine
03/06/2003DE20023134U1 Wind farm operating method involves limiting power to be output from wind power systems to maximum possible network supply value lower than maximum rating
03/05/2003EP1289095A1 Electric energy regulation system and method for regulating electric state values and/or parameters in a current line
03/05/2003CN2539335Y Phase advancing energy-saver
03/04/2003US6529839 Energy coordination system
02/2003
02/27/2003WO2003017724A2 Power and/or energy monitor, method of using, and display device
02/27/2003WO2003017405A2 Systems for and methods of providing primary, auxiliary or backup power to one or more loads
02/27/2003WO2003017030A2 Method and apparatus for using a transaction system involving fungible, ephemeral commodities including electrical power
02/27/2003WO2003003029A3 A method and apparatus for reading and controlling electric power consumption
02/27/2003US20030041039 Business management system and method for a deregulated electric power market using workspace portals.
02/27/2003US20030041038 Business management system and method for a deregulated electric power market in a shortage situation
02/27/2003US20030041037 Business management system and method for a deregulated electric power market with sharing of supply chain data
02/27/2003US20030041017 Business management system and method for a deregulated electric power market using consumer selected special offers
02/27/2003US20030041016 Business management system and method for a deregulated electric power market using cooperatively produced estimates
02/27/2003US20030041002 Method and system for conducting an auction for electricity markets
02/27/2003US20030040846 Stability prediction for an electric power network
02/27/2003US20030040845 Business management system and method for a deregulated electric power market using customer circles aggregation
02/27/2003US20030040844 Business management system and method for a deregulated electric power market using online diagnostic services
02/27/2003US20030039132 Device for equal-rated parallel operation of single-or three-phase voltage sources
02/26/2003EP1286444A2 Device for parallel operation of equal range single-phase or three-phase voltage sources
02/26/2003EP1174004B1 Method and device for supplying an electric arc melting furnace with current
02/26/2003EP0904620B1 Real-time pricing control system and methods regarding same
02/26/2003CN1399389A Passive filtering method and passive filter circuit
02/26/2003CN1102301C Network collection method for large scale collecting dispersed electric energy
02/26/2003CN1102254C Method and equipment for overall increasement of electricity quality
02/25/2003USRE38004 Universal AC sequencer for a server
02/25/2003US6526361 Battery testing and classification
02/20/2003WO2003015251A1 Electrical power conservation apparatus and method
02/20/2003WO2003015236A1 Method for operating power source system and power source system comprising secondary battery
02/20/2003US20030036822 System and method for controlling power demand over an integrated wireless network
02/20/2003US20030036820 Method for optimizing energy consumption and cost
02/20/2003US20030036810 System and method for controlling generation over an integrated wireless network
02/20/2003US20030035985 Power system including heat removal unit for providing backup power to one or more loads
02/20/2003US20030035984 Metal fuel cell system for providing backup power to one or more loads
02/20/2003US20030035308 Control system for a power converter and method of controlling operation of a power converter
02/20/2003US20030034693 Power transfer switch assembly
02/20/2003CA2456615A1 Electrical power conservation apparatus and method
1 ... 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 ... 387