Patents for H02J 3 - Circuit arrangements for ac mains or ac distribution networks (38,663)
12/2010
12/15/2010CN201674411U Deflector with full-bridge three-level control
12/15/2010CN201674271U Special electricity saving device for injection molding oil pump motor
12/15/2010CN201674238U Parallel operation load proportional distribution controller of diesel generating sets
12/15/2010CN201674237U Autosynchronous combining controller for diesel generator set
12/15/2010CN201674236U Wind generator output voltage-stabilization control system
12/15/2010CN201674235U 能量回馈电梯系统 Elevator energy feedback system
12/15/2010CN201674234U Solar energy supply circuit
12/15/2010CN201674233U Water cooling electronic phase advancer
12/15/2010CN201674232U Harmonic suppression and dynamic reactive power compensation device
12/15/2010CN201674231U Voltage-regulation type automatic special voltage regulator for reactive power compensation
12/15/2010CN201674230U Switching device for low-voltage reactive power compensation device and low-voltage reactive power compensation device
12/15/2010CN201674229U Circuit end voltage regulation and reactive power compensation bi-functional voltage regulator
12/15/2010CN201674228U Cross hysteresis tracking compensating current generator
12/15/2010CN201674227U Flexible reactive power flow control device
12/15/2010CN201674226U Filter for inhibiting conduction of electromagnetic interference in power grid
12/15/2010CN201674225U Power line automatic power supply control device
12/15/2010CN101919136A Appliance and method for monitoring a phase line of a section of an electrical energy grid line
12/15/2010CN101919134A Event-based control system for wind turbine generators
12/15/2010CN101919133A Electrical generator arrangements
12/15/2010CN101919132A Apparatus and method for operating a wind turbine under low utility grid voltage conditions
12/15/2010CN101917139A Method for railway and expressway photovoltaic power generation technology
12/15/2010CN101917130A Quick energy response method for grid-side converter in DFIG (Doubly-Fed Induction Generator) low-voltage ride-through (LVRT) process
12/15/2010CN101917126A Voltage-equalizing and power-equalizing control method for multi-module cascade solid-state transformer
12/15/2010CN101917024A Generating method of universality cost space in security-constrained dispatch
12/15/2010CN101917023A Automatic control method of wind electric active power for wind farm monitoring system
12/15/2010CN101917022A Three-phase inverter capable of working without parallel connection by interconnection lines and control method thereof
12/15/2010CN101917021A Derivative optimum-based power conversion and transient energy storage control method
12/15/2010CN101917020A Lift energy feedback, reactive compensation and switched-off emergency running method and system
12/15/2010CN101917019A Method for computing alternating current system current injected into direct current system
12/15/2010CN101917018A Combined control cabinet of large-power doubly-fed wind-driven generator
12/15/2010CN101917017A Single-stage boosting/reducing energy storage type photovoltaic grid-connected power generation control system
12/15/2010CN101917016A Energy-saving type cascade multilevel photovoltaic grid-connected generating control system
12/15/2010CN101917015A Hydraulic power plant vibration region crossing method based on master station AGC system
12/15/2010CN101917014A Accumulator charging and discharging control method for smoothening power fluctuation of wind power station
12/15/2010CN101917013A Double-feed wind power generating system with energy storage function
12/15/2010CN101917012A Three-phase rectifying reactive power compensation circuit
12/15/2010CN101917011A Power quality comprehensive control method and device for electric railway traction power supply system
12/15/2010CN101917010A Compound control structure for balanced output of multiple sets of automatically controlled power equipment
12/15/2010CN101917009A Surge-free high-speed tracking reactive power compensator and control method thereof
12/15/2010CN101917008A Method and device for improving specific proportion load efficiency of power source
12/15/2010CN101917007A Method for determining inductance value at alternating side of shunt active power filter
12/15/2010CN101917006A Frequency safety online monitoring and assessment method of power system
12/15/2010CN101917005A Power grid interlink system of offshore oil platform
12/15/2010CN101917004A Shore power supply system for ships and power supply method thereof
12/15/2010CN101917003A Small interference oscillatory stability decomposed model analysis method for electric power system
12/15/2010CN101917002A Ultrahigh voltage power network interconnection line operating state-based voltage control method
12/15/2010CN101917001A Fault sequencing method for on-line static security analysis of power system
12/15/2010CN101917000A Method for evaluating load of traction substation of electric railway
12/15/2010CN101916999A 500kV regional control center control domain optimization system
12/15/2010CN101916998A Support vector machine-based wind electric powder prediction device and method
12/15/2010CN101916997A Power distribution device capable of effectively improving active power of serial electric tracing system
12/15/2010CN101916308A Design method and device for controller of three-phase three-wire type uniform electric energy regulator
12/15/2010CN101915203A Damping injection control method for improving power angle oscillation of water turbine generator set
12/15/2010CN101420128B Dynamic passive compensation system and controlling method thereof
12/15/2010CN101409448B Electric power system protection and control system and distributed control system
12/15/2010CN101310434B Power converters
12/15/2010CN101300532B Initializing an estimation of dynamic model parameters
12/15/2010CN101252283B Medium voltage system inductive dynamic reactive-load adjusting device
12/15/2010CN101141064B Method for distributed tidal current analyzing by exchange boundary node state and net damage information
12/15/2010CN101005208B Electrical power generation system and method for generating electrical power
12/14/2010US7852645 Circuit and associated method for reducing power consumption in a power transformer
12/14/2010US7852052 Supply circuit for implantable medical devices
12/14/2010US7851945 System and method of providing power
12/14/2010US7851943 Direct current power transmission and distribution system
12/14/2010US7851942 Circuit arrangement for supplying variable loads from three phases
12/14/2010US7851941 Method and system for a multiple output capacitive buck/boost converter
12/14/2010US7851938 Midspan powering without the use of data transformers in a power over Ethernet application
12/09/2010WO2010140247A1 System stabilization device, method, and wind-power generation system
12/09/2010WO2010139197A1 Sensory optical power grid
12/09/2010WO2010139066A1 Transportable modular multi-appliance device
12/09/2010US20100308780 Phase-controlled non-zero-cross phototriac with isolated feedback
12/09/2010US20100308662 High Efficiency Remotely Controllable Solar Energy System
12/09/2010US20100308648 Buoyant Harbor Power Supply
12/09/2010CA2764231A1 Transportable modular multi-appliance device
12/08/2010EP2259403A1 Method and system for reducing feeder circuit loss using demand response
12/08/2010EP2258945A2 Method for operating a wind energy plant
12/08/2010CN201667621U Wind and light complementary electric power supply system of communication base station
12/08/2010CN201667545U Power supply device for utilizing solar energy and wind energy as drive energy of pumping unit
12/08/2010CN201667544U Wind power generation feedback device
12/08/2010CN201667543U High-voltage dynamic reactive compensation device based on adjustable magnetic control reactor
12/08/2010CN201667542U Power distribution unit capable of effectively increasing active power of electric tracer heating system in series
12/08/2010CN201667541U Intelligent low-pressure reactive compensation synthesis module
12/08/2010CN201667540U Electromagnetic reactance dynamic reactive compensation device
12/08/2010CN201667539U Intelligent mixed type reactive compensation filtering screen
12/08/2010CN201667538U Minitype electric network power supply system capable of preventing low-cycle sudden-power failure
12/08/2010CN201667536U Overvoltage protective unit used for SVC
12/08/2010CN201667266U Indoor single-phase discharge coil
12/08/2010CN201666915U Overvoltage and undervoltage monitoring device of high-voltage reactive power compensation power unit
12/08/2010CN201666220U Power supply device with complementary coastal shoal solar photovoltaic power generation and wind power generation
12/08/2010CN1965456B Switching apparatus and method for varying an impedance of a phase line of a segment of an electrical power line
12/08/2010CN1883094B Load response apparatus conencted with electric load and method for controlling electric load
12/08/2010CN101911426A Fault situation processing arrangement of a load distribution system of a local electric power transmission network
12/08/2010CN101911425A Electricity supply apparatus of an industrial site
12/08/2010CN101911424A Method for controlling a grid voltage
12/08/2010CN101911423A Electric power supply apparatus for use in vessels
12/08/2010CN101908779A Power distribution on-line management terminal
12/08/2010CN101908769A Control device and method for suppressing subsynchronous oscillation
12/08/2010CN101908768A Photovoltaic grid-connected system for high-rise residence balcony
12/08/2010CN101908767A Device for comprehensively compensating reactive power harmonics
12/08/2010CN101908766A Operation management terminal of distribution transformer