Patents for H02J 3 - Circuit arrangements for ac mains or ac distribution networks (38,663)
07/2010
07/20/2010CA2454723C Control system for a power converter and method of controlling operation of a power converter prior application information
07/15/2010WO2010081165A2 Nested, hierarchical resource allocation schema for management and control of an electric power grid
07/15/2010WO2010080490A1 Feeder automation for an electric power distribution system
07/15/2010WO2010080431A2 Power inverter control for grid-tie transition
07/15/2010WO2010079747A1 Power control system and method and program for controlling power control system
07/15/2010WO2010079745A1 System for control of wind power electricity generation accumulator and method of control thereof
07/15/2010WO2010079276A1 Method and system for transmitting electric energy
07/15/2010WO2010079235A2 Load dependent converter switching frequency
07/15/2010WO2010079234A1 Reconfigurable power converter module
07/15/2010WO2010078669A1 Device for photovoltaic power plants to adjust the electric potential in photovoltaic generators
07/15/2010WO2010057987A3 Computer-supported method for optimizing energy usage
07/15/2010WO2010057948A3 Decentralized energy efficiency through autonomous, self-organizing systems, taking into account heterogeneous energy sources
07/15/2010WO2010057947A3 Computer-supported method for optimizing energy usage in a local system
07/15/2010WO2010036974A3 Adaptive generation and control of arbitrary electrical waveforms in a grid-tied power conversion system
07/15/2010WO2009063397A8 Method, apparatus and system for demand side electrical load management
07/15/2010US20100176658 Power Control Apparatus for Power Strip
07/15/2010US20100176656 Independent power supply module for LCD
07/15/2010DE212008000067U1 Vorrichtung zum Erweitern des Regelungsbereichs des in ein Stromnetz gespeisten Stroms und Energiesystem mit einem erweiterten Regelungsbereich Apparatus for expanding the regulatory region of the fed into a power grid electricity and energy system with an extended control range
07/15/2010DE202008017778U1 Einrichtung zur Maximallasteinstellung Means for setting maximum load
07/15/2010CA2749373A1 Nested, hierarchical resource allocation schema for management and control of an electric power grid
07/15/2010CA2746772A1 Feeder automation for an electric power distribution system
07/14/2010EP2207248A2 Solar power plant
07/14/2010EP2206211A1 Method and inverter for feeding ac-current into mains for part load conditions
07/14/2010EP2206210A2 Electrical generator arrangements
07/14/2010EP2206209A1 Renewable energy production and storage apparatus
07/14/2010EP2141781B1 Switching device with a bistable relay between a network and an inverter
07/14/2010EP2070173B1 Determination and use of power system sensitivities for power flow control
07/14/2010EP2052451B1 Model-based method for monitoring a power supply network, and system for carrying out said method
07/14/2010EP2030298B1 Inverter for power supply system feeding into an ac power supply system
07/14/2010CN201528280U Full power direct-drive type flexible grid-connection current transformer for wind turbine
07/14/2010CN201528212U Diesel set power divider
07/14/2010CN201528211U Power grid Interconnected 110kw wind-solar hybrid generating system controller
07/14/2010CN201528210U Outdoor reactive power compensation radiating device
07/14/2010CN201528209U Anti-condensation device of low-pressure reactive power device
07/14/2010CN201528208U Novel multifunctional voltage reactive integrated controller
07/14/2010CN201528207U Dynamic high-voltage reactive-power automatic compensation device
07/14/2010CN201528206U Harmonic wave suppressed type high voltage dynamic reactive power automatic compensation device
07/14/2010CN201528205U Low-voltage intelligent reactive power compensation device
07/14/2010CN201528204U Monitoring system of high-pressure static reactive power compensation device
07/14/2010CN201528203U Filter channel of 20Hz low-frequency signal
07/14/2010CN201528202U RF DC isolation high-voltage protection converter
07/14/2010CN201528201U Submersible series capacitor compensation device
07/14/2010CN201528200U Common-mode strengthened filter
07/14/2010CN201528199U Dual-section low-pass power-supply filter
07/14/2010CN201528198U Alternating current power supply noise filter
07/14/2010CN201528126U Low-voltage capacitance compensating cabinet
07/14/2010CN201527875U Pre-magnetizing device of power supply transformer
07/14/2010CN201526421U Megawatt variable-speed wind driven generator set of flexible combination of plurality of motors
07/14/2010CN101777855A Solar power plant
07/14/2010CN101777776A Method for controlling intelligent PV grid-connected inverter based on synchro generator model
07/14/2010CN101777775A High-frequency isolation single-phase photovoltaic grid-connected system and control method thereof
07/14/2010CN101777774A Solar energy and wind-powered generating field grid-connected generating system
07/14/2010CN101777773A Ant colony algorithm-based small wind power generation grid-connected energy management system and method
07/14/2010CN101777772A Automatic cut-in device for parallel energy-saving operation of 10-20KV distribution transformer
07/14/2010CN101777771A Working state monitoring device, capacitor and reactive power factor compensation device
07/14/2010CN101777770A Control circuit for voltage dropping type power factor corrector
07/14/2010CN101777769A Multi-agent optimized coordination control method of electric network
07/14/2010CN101777768A Power supply intermediary device for supply power for load rotating in space
07/14/2010CN101777767A Method for discriminating time-lag power system stability
07/14/2010CN101777766A Risk evaluation method for transmission capacity of electric network
07/14/2010CN101777765A On-line load simulation method of power system
07/14/2010CN101777764A Area control deviation and unit generation deviation-based scheduling feedback control system
07/14/2010CN101777763A Three-phase power equipment digital decoupling monitoring system and control method
07/14/2010CN101777762A Frequency converting and energy saving device of oil pumping machine
07/14/2010CN101409449B Circuit structure for photovoltaic power generation system
07/14/2010CN101364732B Large power modularized DC power supply apparatus and control method thereof
07/13/2010US7755216 Uninterrupted power supply with IR control link
07/13/2010US7755214 Diode circuit having passive element property, impedance modulator including the diode circuit, and DC source including the diode circuit
07/08/2010WO2010077488A2 System for monitoring and assessing electrical circuits and method of operation
07/08/2010WO2010077145A1 Method for operation of a permanent magnet synchronous machine, and a device in an electric system comprising such a machine
07/08/2010WO2010076079A1 Multilevel converter as reactive power compensator having active power symmetrization
07/08/2010WO2010054477A9 System and method of democratizing power to create a meta-exchange
07/08/2010WO2008134997A3 Method and device for determining load flow in an electrical supply grid
07/08/2010US20100171366 Transient energy systems and methods for use of the same
07/08/2010DE102009007798A1 Method for supply of electrical load, involves providing electric power supply, by which secondary voltage is generated in motor current line additional to motor voltage
07/08/2010DE102009007795A1 Method for supplying electrical power to e.g. multiple auxiliary motors, via common motor power line in production line, involves supplying voltage component to electric motor via main line of power line
07/08/2010DE102008062356A1 Verfahren und Stromerzeugungsanlage zum Stabilisieren eines Stromverteilungsnetzes Process and power generation system for stabilizing a power distribution network
07/08/2010DE102008037574A1 Dezentrale Energieeffizienz durch autonome, selbstorganisiserende Systeme unter der Berücksichtigung von heterogenen Energiequellen Decentralized energy efficiency by autonomous, selbstorganisiserende systems under consideration of heterogeneous sources of energy
07/08/2010CA2748404A1 Multilevel converter as reactive power compensator having active power symmetrization
07/07/2010EP2203965A1 Electrical switchgear, particularly for connecting generators and thrusters in dynamically positioned vessels
07/07/2010EP1668450B1 Wide-area electrical demand and supply management
07/07/2010CN201523242U 风光电源管理控制器 Scenery Power Management Controller
07/07/2010CN201523241U Voltage reactive comprehensive optimization compensating device
07/07/2010CN201523240U 智能电容器 Smart Capacitor
07/07/2010CN201523239U Single-phase multi-path capacitance switching driving board with phase-shifting chip
07/07/2010CN201523238U Micro net power quality integrated control system
07/07/2010CN201523237U Power-saving system of refrigerated container of wharf
07/07/2010CN201523236U Power quality comprehensive controller for power distribution system
07/07/2010CN201523235U DSP control type voltage-stabilizing power-saving cabinet
07/07/2010CN201523234U Partition controllable energy-saving device
07/07/2010CN201523233U Subminiature CHP energy supplying device of gas generator
07/07/2010CN201523232U Negative sequence and harmonic comprehensive compensation system of electrified high-speed railway
07/07/2010CN201521366U Wind methane power all-in-one generating air supply device by using wind power
07/07/2010CN101772872A Estimating a time offset between stationary clocks
07/07/2010CN101772871A Controlling power supply to vehicles through a series of electrical outlets
07/07/2010CN101771279A Wind turbine starting
07/07/2010CN101771278A Method for power network splitting and load shedding
07/07/2010CN101771277A Method and system for apportioning and evaluating loss in shared control area in regional power grid accident
07/07/2010CN101771276A Automatic identification method for multi-buffer network
07/07/2010CN101771275A Electric energy monitoring system