Patents for H02J 3 - Circuit arrangements for ac mains or ac distribution networks (38,663) |
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11/17/2010 | CN1972061B Apparatus and method of recovering voltage amplitude and phase in drooping method of outer characteristic |
11/17/2010 | CN1747274B Predicting control of active power filter |
11/17/2010 | CN1639651B Data sample and transmission modules for power distribution systems |
11/17/2010 | CN1639649B Method and system for conditionally triggered system data capture |
11/17/2010 | CN101889378A Series voltage compesator and method for series voltage compensation in electrical generators |
11/17/2010 | CN101888199A Novel technical scheme of applying photovoltaic technology to coal-fired power plant |
11/17/2010 | CN101888095A Variable structure control method of grid-connected photovoltaic system |
11/17/2010 | CN101888094A Energy storage method for double-feed current transformer |
11/17/2010 | CN101888093A Low voltage ride through analogue system of wind generation system |
11/17/2010 | CN101888092A Railway solar energy grid-connected photovoltaic system |
11/17/2010 | CN101888091A Wind power grid-connected generating system for highway isolated belt |
11/17/2010 | CN101888090A Static reactive power compensation device based on energy method and control method thereof |
11/17/2010 | CN101888089A Three-phase power voltage stabilizer with three-phase and three respective single-phase output function |
11/17/2010 | CN101888088A Optimal configuration method of hadal large-scale semi-submersible drilling platform power distribution system |
11/17/2010 | CN101888087A Method for realizing distributed super-short-term area load forecasting in distribution network terminal |
11/17/2010 | CN101888045A Circuit and method for preventing direct current arc discharge |
11/17/2010 | CN101510689B Synchronous switch |
11/17/2010 | CN101459340B Static synchronization compensator chaos balance control system based on cascade type DC-to-AC converter |
11/17/2010 | CN101354956B Large-capacity double-body phase-shifting transformer |
11/16/2010 | US7834599 Rapid supply voltage ramp using charged capacitor and switch |
11/16/2010 | US7834483 Energy harvesting system and method using multiple energy sources |
11/16/2010 | US7834479 Methods and systems for intentionally isolating distributed power generation sources |
11/15/2010 | CA2704408A1 Inertial catch for an automatic transfer switch power contactor |
11/11/2010 | WO2010129691A2 Voltage conservation using advanced metering infrastructure and substation centralized voltage control |
11/11/2010 | WO2010127720A1 Method of adapting a configuration of a voltage converting device and voltage converting unit for a voltage converting device |
11/11/2010 | WO2010127375A1 Monitoring apparatus |
11/11/2010 | US20100285702 Hybrid electric power system with distributed segmented generator/motor |
11/11/2010 | US20100283395 Multi-feed rf distribution systems and methods |
11/11/2010 | US20100282910 Power control system |
11/11/2010 | DE202010010695U1 Einrichtung zum Konvertieren des Wind- und Fotovoltaikstroms in netzfähige und grundlastige elektrische Energie mit konstanter Spannung und Frequenz Means for converting the wind and photovoltaic current in network-capable heavy and basic electrical energy with constant voltage and frequency |
11/11/2010 | DE102009017939A1 Windpark mit mehreren Windenergieanlagen sowie Verfahren zur Regelung der Einspeisung von einem Windpark Wind farm with several wind turbines and method for controlling the supply of a wind farm |
11/11/2010 | CA2761100A1 Method of adapting a configuration of a voltage converting device and voltage converting unit for a voltage converting device |
11/11/2010 | CA2758536A1 Voltage conservation using advanced metering infrastructure and substation centralized voltage control |
11/11/2010 | CA2703068A1 Electrical panel input interlock assembly |
11/10/2010 | EP2249474A1 Method for suppressing network originated faults in a power plant assembly |
11/10/2010 | EP2249394A1 Photovoltaic power system |
11/10/2010 | EP2248250A2 Method and apparatus for distributed var compensation |
11/10/2010 | EP2248241A1 Method and system for reducing feeder circuit loss using demand response |
11/10/2010 | EP2247850A1 Wave power plant and method for operating the same |
11/10/2010 | EP1668245B1 Wind power plant comprising a reactive power module for supporting a power supply system and corresponding method |
11/10/2010 | CN201629709U High-voltage soft start and compensation integrated device |
11/10/2010 | CN201629708U High-voltage alternating-current motor electromagnetic voltage-regulating and compensating soft start device |
11/10/2010 | CN201629685U Phase-controlled industrial DC power supply control system |
11/10/2010 | CN201629664U Multi-channel wideband integrated low-pass power supply filter |
11/10/2010 | CN201629583U Automatic switching running device of distribution transformer set |
11/10/2010 | CN201629582U Energy storage power station |
11/10/2010 | CN201629581U Electricity reactive compensation circuit |
11/10/2010 | CN201629580U Outdoor pole top low-voltage capacitance intelligent compensation box |
11/10/2010 | CN201629579U Full-insulation capacitor device |
11/10/2010 | CN201629578U Low-voltage power capacitor |
11/10/2010 | CN201629577U Intelligent compensation unit without inrush current |
11/10/2010 | CN201629576U Active power filtering device with function of sleeping |
11/10/2010 | CN201629575U Special electricity saving device for machine rooms |
11/10/2010 | CN201629574U Opening type power network loss real-time analysis system |
11/10/2010 | CN201629573U Self cooling fan power supply of variable frequency motor |
11/10/2010 | CN101884152A Control system and control method of power system |
11/10/2010 | CN101882874A Power supply system and apparatus |
11/10/2010 | CN101882799A Control method of alternating voltage sensorless high voltage direct current transmission converter |
11/10/2010 | CN101882798A LVRT test control device |
11/10/2010 | CN101882797A Method for efficiently emerging marsh gas power generation into user power utilization network |
11/10/2010 | CN101882796A Control method of tailings discarding speed rise mechanical kinetic energy feedback rate of high-speed wire rod mill |
11/10/2010 | CN101882795A Regenerative electric energy feedback method for elevator and device thereof |
11/10/2010 | CN101882794A Combined array wind generator |
11/10/2010 | CN101882793A Flexible demountable array wind driven generator |
11/10/2010 | CN101882792A Connection method for ultrahigh-voltage direct current transmission and ultrahigh-voltage converter stations |
11/10/2010 | CN101882791A Controllable serial capacitor optimal configuration method capable of improving available transmission capacity |
11/10/2010 | CN101882790A Capacitor configuration method and system |
11/10/2010 | CN101882789A Integrated high-voltage intelligent phase selection permanent-magnetic circuit breaker |
11/10/2010 | CN101882788A Method and device for improving supply voltage at tail end of long supply arm of heavy haul railway |
11/10/2010 | CN101882787A Railway power regulator based on half-bridge structure |
11/10/2010 | CN101882786A Harmonic wave and idle dynamic management controller suitable for high pressure system and control method |
11/10/2010 | CN101882785A Flow analysis system and method for intelligent power distribution networks containing distributed generation |
11/10/2010 | CN101882256A Electric energy quality monitoring method, device and system |
11/10/2010 | CN101882237A Improved immunity-particle swarm optimization operation |
11/10/2010 | CN101881062A Energy-saving and environment friendly sun room |
11/10/2010 | CN101505064B Control method for series connection type active electric power filter |
11/10/2010 | CN101505060B Frequency conversion method for implementing multi-sampling rate signal by using narrow band filtering in electricity grid |
11/10/2010 | CN101340095B Reactive layered self-adapting control method for power distribution network |
11/10/2010 | CN101325336B Method for matching multi-region electric network swim based on belt restriction state estimation |
11/10/2010 | CN101252281B Method and system for testing electric voltage reactive-load integrated control functions |
11/10/2010 | CN101114771B Wind-electricity integration power stabilizer based on active type voltage source DC power transmission |
11/09/2010 | US7830687 Adaptive power electronics interface for hybrid energy systems |
11/09/2010 | US7830685 Method modular power supply for x-ray tubes and method thereof |
11/09/2010 | US7830679 Transmission system |
11/09/2010 | US7830042 Dimmer switch for use with lighting circuits having three-way switches |
11/09/2010 | US7830037 Grid stabilising system |
11/09/2010 | US7830029 Method for operating a wind park |
11/09/2010 | CA2491653C Method for operation of a power generation plant |
11/04/2010 | WO2010126652A1 Methods and systems for no-break power transfer with a converter |
11/04/2010 | WO2010124706A1 Submodule for a multi-stage power converter having additional energy storage device |
11/04/2010 | WO2010124546A1 Battery-based power station |
11/04/2010 | US20100280674 Metering and Regulating the Distribution of Power |
11/04/2010 | US20100280672 System for regulating the active power of a wind farm |
11/04/2010 | US20100277001 Systems, Methods, and Apparatus for Converting DC Power to AC Power |
11/04/2010 | US20100276998 Battery-Based Grid Energy Storage for Balancing the Load of a Power Grid |
11/04/2010 | US20100276997 Intelligent industrialized electrical system that can be customized for premises |
11/04/2010 | US20100276996 Methods and systems for no-break power transfer converter |
11/04/2010 | US20100276931 Method of operating a wind park |
11/04/2010 | DE20222013U1 Stromkompensierte Drossel und Schaltungsanordnung mit der stromkompensierten Drossel Common Mode Choke and circuitry with the current compensated choke |
11/04/2010 | DE102009018240A1 Photovoltaikanlage mit Batterie und Ersatzkraftwerk PV system with battery and spare power plant |