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)
06/2010
06/09/2010EP2008352B1 Method for monitoring the electrical energy quality in an electrical energy supply system, power quality field device and power quality system
06/09/2010EP1919076B1 Methods and apparatus for controlling current in an electrical machine
06/09/2010EP1728304B1 Method for operating a frequency converter of a generator and wind energy turbine having a generator operated according to the method
06/09/2010EP1614203B1 Electric circuit breaker
06/09/2010CN201504223U Multi-power energy-saving motor for oil pumping unit
06/09/2010CN201504217U Digital mine explosion-proof variable-frequency electric controller
06/09/2010CN201504106U Grid-connected photovoltaic inverter cabinet base
06/09/2010CN201504105U Flexible wind-driven generator
06/09/2010CN201504104U Parallel controllable reactor of ultra-high-voltage line
06/09/2010CN201504103U Local compensation device of explosion-proof type electromotor
06/09/2010CN201504102U Distribution load monitor
06/09/2010CN1866716B Electrical power source, operational method of the same, inverter and operational method of the same
06/09/2010CN101728838A Photovoltaic power generation device and method based on amplitude-phase control
06/09/2010CN101728837A Energy feedback system
06/09/2010CN101728836A A system for connecting a wind turbine generator to a utility power network
06/09/2010CN101728835A Battery power energy storing device for smoothing output power of wind power generation
06/09/2010CN101728834A Reactive automatic compensating method
06/09/2010CN101728833A Reactive power compensation method for low-voltage distribution line
06/09/2010CN101728832A Method for low-voltage phase-splitting reactive compensation of metallurgical electric furnace
06/09/2010CN101728831A Method for low-voltage thyristor reactive compensation switching of metallurgical electric furnace
06/09/2010CN101728830A Zero-current non-arcing switching type voltage-regulating and voltage-stabilizing device and voltage compensating method thereof
06/09/2010CN101728829A Electric network active and reactive comprehensive security control system
06/09/2010CN101728828A Optimized system voltage control method through coordinated control of reactive power source
06/09/2010CN101726656A Harmonic current detection and filtration method and device of active power filter
06/09/2010CN101267117B A speed-varying frequency constant dual feedback wind power generation system and its parallel control method
06/09/2010CN101154816B Parallel power supply system and method for acquiring nonuniform fluid
06/08/2010US7734380 Push communications architecture for intelligent electronic devices
06/08/2010US7733679 Method for setting switching times, in particular idle times, of an inverter based on detected power, and inverter
06/08/2010US7733069 Power converting apparatus and power generating apparatus
06/08/2010US7732943 Method and a device for selecting and dimensioning measures in a case of instability in an electrical power system
06/08/2010US7732941 Multi-module current sharing scheme
06/08/2010US7732940 Apparatus and method for reducing neutral line current using load switching method
06/08/2010US7732807 Integrated circuit
06/03/2010WO2010062398A1 Power distribution controller and related systems and methods
06/03/2010WO2010062201A1 Primary-side power control for inductive power transfer
06/03/2010WO2010062198A1 Bi-directional inductive power transfer
06/03/2010WO2010060903A1 A method and device for facilitating the localisation of a fault in a grid
06/03/2010WO2009152534A3 Electrical demand controller
06/03/2010WO2009138808A4 Single-phase shunt active power filter with adaptive filter capacitor voltage
06/03/2010US20100133915 Thyristor controllied series capacitor adapted to damp sub synchronous resonances
06/03/2010US20100133913 Control device and control method for electric system
06/03/2010US20100133907 Control method and unit of an electric system for supplying power/electric current to sockets for the passengers of an aircraft
06/03/2010US20100133906 Remote Controlled Extension Cord with Embedded Housing for a Remote Control
06/03/2010US20100133904 Dc bus voltage control for two stage solar converter
06/03/2010US20100133901 Modular stacked subsea power system architectures
06/03/2010US20100133816 Power Converter For Use With Wind Generator
06/02/2010EP2192667A2 Energy feed device
06/02/2010EP2192666A2 Method for earth fault independent compensation of harmonics for the voltages on access points
06/02/2010EP2191551A2 Wind park with voltage regulation of the wind energy systems and operating method
06/02/2010EP2191550A1 Stacom system for providing reactive and/or active power to a power network
06/02/2010DE102009054264A1 Passives Oberschwingungsfilter Passive harmonic filters
06/02/2010DE102008060406A1 Verfahren zur Modellierung einer Transformatoranordnung A method for modeling a transformer arrangement
06/02/2010DE102008059293A1 Solar power generation unit for generating controlled, sinusoidal alternating voltage, has combination consisting of photovoltaic module, solar power buffer storage, regulating and switching module, input converter and output converter
06/02/2010CN201498997U Three phase current feeder conversion system
06/02/2010CN201498996U Flameproof high-voltage reactive power compensation device
06/02/2010CN201498995U Second CT sampling and connecting structure of intelligent capacitor in reactive power compensation device
06/02/2010CN201498994U Intelligent high-voltage pole top reactive power compensation device
06/02/2010CN201498993U Reactive power compensator for TSC based 10kv distributing network
06/02/2010CN201498992U Filter connection circuit for connecting buses
06/02/2010CN201498991U Source-side power-saving control system
06/02/2010CN201498990U Source-side power-saving network control system
06/02/2010CN201498989U Compound current quality regulating device
06/02/2010CN201498018U Plant load optimization dispenser of heat power plant
06/02/2010CN1881729B Harmonic measuring method for AC filter protection
06/02/2010CN101719679A Method for synchronizing distributed power supply and power grid
06/02/2010CN101719678A No-load cutting-in modeling and experimental method of double-fed type wind-driven generator
06/02/2010CN101719677A Control unit for zero counter current network integrating control device
06/02/2010CN101719676A Voltage control at windfarms
06/02/2010CN101719675A PMU-based low-frequency oscillation control method
06/02/2010CN101719674A Method for testing and computing loss of chain type modularizied static synchronous compensator
06/02/2010CN101719673A Active electric power filter with energy storage function
06/02/2010CN101719672A Active power filter and energy reforming control method thereof
06/02/2010CN101719671A Method for analyzing structural properties of RLC electric network
06/02/2010CN101719670A Laser long-distance electricity transmission device
06/02/2010CN101719669A Assessment method for long-term voltage stability in power system based on generator exciting current limit
06/02/2010CN101719668A Energy-saving power generation dispatching method considering security constraint and network loss modification
06/02/2010CN101719667A Distributed type management and transfer method of load
06/02/2010CN101409008B Integrated system for monitor, management and remotely meter-reading of power distribution network
06/02/2010CN101383220B Dry magnet controlled reactor
06/02/2010CN101299587B Electric power telemechanical device RTU and method for implementing automatic voltage control of generating plant
06/02/2010CN101291062B Analysis method of DC power flow in dynamic topology electric network
06/02/2010CN101256550B Parallelization estimation system for complex electric network phase synchronization
06/02/2010CN101237147B Integrated power capacitor
06/02/2010CN101237145B M-series modulation and variance judgement based parallel network active alone island detection system and method
06/02/2010CN101232183B Method for evaluating limit transmitted power applied in electric network on-line scheduling decision
06/02/2010CN101202445B Method for double feed-in DC power transmission
06/02/2010CN101183789B Method for setting compound characteristic impedance suitable for series capacity compensation circuit
06/02/2010CN101154498B Device and method for controlling changing operation of on-load tap changer
06/02/2010CN101141066B Method for regulating and controlling renewable energy resources power generation system by flywheel accumulation energy device
06/02/2010CN101033730B Control method for stably operating wind power field using double-fed asynchronous generator
06/01/2010US7729391 Transmitting device with discard control of specific media data
06/01/2010US7728564 Power supply for a load control device
05/2010
05/27/2010WO2010058460A1 Secondary battery system
05/27/2010WO2010058459A1 Output power control apparatus
05/27/2010WO2010057987A2 Computer-supported method for optimizing energy usage
05/27/2010WO2010057948A2 Decentralized energy efficiency through autonomous, self-organizing systems, taking into account heterogeneous energy sources
05/27/2010WO2010057947A2 Computer-supported method for optimizing energy usage in a local system
05/27/2010WO2010057516A1 Method for determining electrical load flows in an electrical energy supply grid
05/27/2010WO2010031690A3 Mobile electricity meter for the location-independent power intake of and/or for the location-independent power feed by a mobile storage and consumption unit
05/27/2010WO2010019248A3 Systems and methods for conditioning and controlling power usage
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