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