Patents for H02J 3 - Circuit arrangements for ac mains or ac distribution networks (38,663)
09/2010
09/08/2010CN101828314A Secondary battery control apparatus and control method
09/08/2010CN101826821A Electric energy control method of optical network hybrid power supply uninterruptable inverter
09/08/2010CN101826814A Rail pressure generation module and system integration technology
09/08/2010CN101826804A Parallel-type permanent magnet direct-drive wind power converter in wind driven generation system and control method thereof
09/08/2010CN101826735A System capable of feeding LED load power energy back to commercial power network
09/08/2010CN101826734A System capable of feeding electric energy loaded by battery back to power grid
09/08/2010CN101826733A System capable of feeding load power energy back to commercial power network
09/08/2010CN101826732A System capable of feeding electric energy loaded by alternating current equipment back to power grid
09/08/2010CN101826731A System capable of feeding DC equipment load power energy back to commercial power network
09/08/2010CN101826730A Rotating coordinate system-based high-efficiency BANG-BANG software phase locked loop
09/08/2010CN101826729A Automatically switching device for economical parallel running of remotely-mounted distribution transformer
09/08/2010CN101826728A Dynamic reactive power compensation device and control method thereof
09/08/2010CN101826727A Method for realizing emergency control on frequency and voltage of electric system
09/08/2010CN101826726A Three-phase load unbalanced limitation method and voltage-regulation type three-phase load unbalanced limiter
09/08/2010CN101826725A Method based on shortest path for calculating power loop-closing path
09/08/2010CN101826723A Power grid voltage comprehensive control system
09/08/2010CN101364738B Tracing and simulating test method for voltage reactive integrated control system
09/08/2010CN101340088B Selecting and ordering method for conductive wire of extra-high voltage AC line
09/08/2010CN101325335B Hyposynchronous damped control system
09/08/2010CN101233662B Communication system for inductive power transfer system
09/08/2010CN101159381B Transforming plant voltage reactive integrated control system acting equipment selection technology
09/08/2010CN101154812B Combination type energy feedback method for multi-output power supply and its implementing circuit
09/08/2010CN101145692B Drawing network high and second harmonic wave and resonance and transient voltage restraint device
09/08/2010CN101141067B Limitation inrush current push-pull device
09/07/2010US7791314 Power management topologies to control power between a DC power source and one or more batteries to a system load
09/07/2010US7791223 Method and device for preventing the disconnection of an electric power generating plant from the electrical grid
09/07/2010US7791222 Multi-output power supply device
09/07/2010US7791220 Automatic sensing power systems and methods
09/07/2010US7791215 Intra-bundle power line carrier current system
09/03/2010CA2695098A1 Semi-direct variable speed drive with n+1 power availability
09/02/2010WO2010098824A1 Methods and apparatus for energy demand management
09/02/2010WO2010098456A1 Power control device and method
09/02/2010WO2010098455A1 Emission factor calculator and emission factor calculation method
09/02/2010WO2010097122A1 A modular voltage source converter
09/02/2010US20100219691 Supply voltage selector
09/02/2010US20100219686 Protective device against abnormality for positive and negative dual power supply circuit
09/02/2010DE102009010117A1 Electricity reference output standardizing method for energy consumer in household application, involves switching electricity consuming devices according to priority for supplying output of electricity without exceeding reference value
09/02/2010DE102009001123A1 Energy conversion and storage device is provided with power supply devices, timers for supplying or disconnecting power supply devices, accumulator for storing energy, and automatic battery charger
09/02/2010CA2753678A1 Methods and apparatus for energy demand management
09/01/2010EP2224571A1 Power supply system
09/01/2010EP2224570A2 System and method for improving power grid stability
09/01/2010EP2224569A2 Grid interconnection device and power control system
09/01/2010EP2224568A2 Grid interconnection device, grid interconnection system, and power control system
09/01/2010EP2223410A1 Modelling a power production network for distributing the load
09/01/2010EP2223407A2 Fault situation processing arrangement of a load distribution system of a local electric power transmission network
09/01/2010EP2223406A2 Event-based control system for wind turbine generators
09/01/2010EP2223405A1 Method and device for filtering a filter output current and / or voltage of an inverter output
09/01/2010EP2158657B1 Control system and method for a tcsc in an electric energy transport network in particular using a sliding-modes approach
09/01/2010EP2096732B1 Energy system comprising a wind or water turbine
09/01/2010CN201570912U 10kV subdistrict power supply intelligent system
09/01/2010CN201570872U Two-out-of-three logic circuit of generator parallel signals
09/01/2010CN201570871U Back pressure type turbo-generator set accessed station service electrical system
09/01/2010CN201570870U LVRT (low voltage ride-through) control apparatus and wind-power generation equipment
09/01/2010CN201570869U Topological structure of converter used by megawatt double-fed wind turbine
09/01/2010CN201570868U Combined type fling-cut switch
09/01/2010CN201570867U Intelligent learning type power compensating controller
09/01/2010CN201570866U Low-voltage intelligent dynamic reactive compensator
09/01/2010CN201570865U Inner triangle type low pressure intelligent rapid composite switch action execution circuit
09/01/2010CN201570864U Intelligent type comprehensive power saving device for electric power
09/01/2010CN201570863U Apparatus for low-frequency deloading and high-cycle loading after overcutting
09/01/2010CN201570862U Sensing photoelectric net
09/01/2010CN201570861U Device for acquiring and processing factory-level automatic generation control instruction
09/01/2010CN201568218U Brushless electric excitation synchronous wind generating set
09/01/2010CN101820230A High-frequency isolation type grid-connected inverter
09/01/2010CN101820175A Grid interconnection device and power control system
09/01/2010CN101820174A Grid interconnection device, grid interconnection system, and power control system
09/01/2010CN101820173A Intelligent power capacitor synchronous fling-cut switch
09/01/2010CN101820172A Power grid flexible constraint integrated system
09/01/2010CN101820171A Power supply method and power supply conversion device
09/01/2010CN101820170A Device and method for cutting off short-circuit current
09/01/2010CN101409447B Method for optimizing electric power system tide base on part automatic differential technology
09/01/2010CN101359829B Power angle stabilizing determination method for electrical power system
09/01/2010CN101340094B Automatic switching reactive compensator of tunable reactor type capacitor
09/01/2010CN101202453B Method and system for controlling single-phase semi-bridge inversion parallel connection direct current circulating current
08/2010
08/31/2010US7788189 Multi-utility energy control and facility automation system with dashboard having a plurality of interface gateways
08/31/2010US7787266 Method for operating a frequency converter of a generator
08/31/2010US7786616 Generator with DC boost and split bus bidirectional DC-to-DC converter for uninterruptible power supply system or for enhanced load pickup
08/31/2010US7786615 Power distribution architecture for actuating moving elements of an aircraft in sequence
08/26/2010WO2010096709A2 Solar chargeable battery for portable devices
08/26/2010WO2010094621A1 A method for testing a power distribution system and a power distribution system analyser device
08/26/2010WO2010094303A1 Method for the graphical configuration of a power supply management system
08/26/2010US20100217453 Grid Interconnection Device, Grid Interconnection System, And Power Control System
08/26/2010US20100216522 Cell phone battery system with back-up reserve
08/26/2010US20100214210 Current balancing device, led lighting apparatus, lcd backlight module, and lcd display unit
08/26/2010US20100213919 Temperature compensation in integrated circuit
08/26/2010US20100213763 Power demand management method and system
08/26/2010US20100213762 Grid Interconnection Device And Power Control System
08/26/2010US20100213761 Field Level Inverter Controller
08/25/2010EP2221944A2 Energy management system and method
08/25/2010EP2221936A2 System and method for control of a grid connected power generating system
08/25/2010EP2221935A2 Control unit with a configurable control circuit for controlling at least one main circuit device of a consumer branch
08/25/2010EP2221934A1 Aerogenerator system
08/25/2010EP2221756A2 Energy management
08/25/2010EP2221626A1 A method for testing a power distribution system an a power distribution system analyser device
08/25/2010EP2220740A1 Electricity supply apparatus of an industrial site
08/25/2010EP2220739A1 System and method for power management and load shedding
08/25/2010CN201563281U Dimming circuit of energy-saving lamp
08/25/2010CN201563274U Digital processing controlled energy saving device for illumination used in active electric filtering
08/25/2010CN201563268U Drive circuit for OLED lamp
08/25/2010CN201563098U Double-feedback motor wind power interconnected rotor excitation control apparatus based on self-anti-interference