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)
07/2012
07/26/2012DE102011009457A1 Power supply network for building, has inverter whose alternating voltage input is connected to power source via switching elements, and direct voltage output is connected with battery
07/26/2012DE102011009317A1 Method for optimizing electrical driving system for high temperature hybrid storage for e.g. electrification of transport and traffic, involves producing heat directly to be used or stored in combustion chamber by fuel or fuel source
07/26/2012DE102011003182A1 Harmonic suppression device for high voltage transmission line, has blocking circuits connected in series with high-pass resistor of transmission line, and tuned to tuning frequency of passive filter elements in transmission line
07/26/2012CA2824895A1 A high voltage dc power source and a power apparatus for a high voltage electrical power system
07/25/2012EP2479884A1 Wind power generation device
07/25/2012EP2479867A1 Power distribution system
07/25/2012EP2479863A1 System for controlling electric power supply to devices
07/25/2012EP2479862A1 Management of the power supply of a local power transport grid
07/25/2012EP2478610A1 Utilization of distributed generator inverters as statcom
07/25/2012EP2478609A1 A method of controlling a wind turbine generator and apparatus for controlling electric power generated by a wind turbine generator
07/25/2012EP2478608A2 A power collection and distribution system
07/25/2012EP2478607A1 Monitoring of an electrical energy supply network
07/25/2012EP2478606A1 Distributed power generation interface
07/25/2012EP2478596A1 Power distribution system
07/25/2012EP2325716B1 Reactive power regulation and voltage support for renewable energy plants
07/25/2012EP2002524B1 Energy supply device for a plurality of energy consumers connected thereto
07/25/2012EP1952500B1 Device for limiting current of electric appliance
07/25/2012CN202353494U Novel solar grid-connected power generating system
07/25/2012CN202353487U Modularized power supply with hierarchical power quality management function
07/25/2012CN202353451U Crowbar-protecting and fault-detecting device of double-fed converter
07/25/2012CN202353321U Intelligent comprehensive electricity-distributing metering meter box
07/25/2012CN202353236U Photovoltaic grid-connected inverter
07/25/2012CN202353235U Micro-grid system
07/25/2012CN202353234U Low-voltage ride through circuit of photovoltaic inverter
07/25/2012CN202353233U Half-wave voltage synthetic inverter
07/25/2012CN202353232U High-voltage cascaded inverter power unit grid-connection feedback device
07/25/2012CN202353231U Distributed straw power generation system
07/25/2012CN202353230U Photovoltaic power supply system anti-reverse power device based on single-chip microcomputer
07/25/2012CN202353229U Grid-connected photovoltaic power supply reverse-power prevention device
07/25/2012CN202353228U Three-phase unbalanced load adjustment device for 0.4kV power distribution area
07/25/2012CN202353227U Alternate charging starting circuit for chain circuit static synchronous compensator
07/25/2012CN202353226U Low-voltage reactive power compensation cabinet
07/25/2012CN202353225U Power factor compensation control circuit of self-turn-off device
07/25/2012CN202353224U Low-voltage phased switching capacitor switch
07/25/2012CN202353223U Low-voltage reactive power compensation cabinet
07/25/2012CN202353222U Low-voltage reactive compensation cabinet
07/25/2012CN202353221U High-voltage reactive power compensation cabinet
07/25/2012CN202353220U Automatic switching device of intelligent control street lamp box type transformer
07/25/2012CN202353219U Three-phase comprehensive electricity-saving appliance
07/25/2012CN202353218U Low-voltage-network reactive self-adaptive compensation device based on single chip microcomputer control
07/25/2012CN202353217U Dynamic voltage quick compensating device
07/25/2012CN202353216U High-voltage active filter device
07/25/2012CN202353215U Neutral harmonic active power filter
07/25/2012CN202353214U Multilevel driving technology-based active power filtering device
07/25/2012CN202353213U Series-parallel hybrid passive-power filtering and protecting device
07/25/2012CN202353212U TECH-series three-phase power saving protector
07/25/2012CN202353211U Internal structure for mine flameproof filter reactor
07/25/2012CN202353210U Filtering protection output circuit
07/25/2012CN202353209U Quality of electric energy disturbance signal automatic classification device
07/25/2012CN202353208U Three-phase-line phase-line switching device capable of avoiding inter-phase short circuit
07/25/2012CN202353207U Power-saving device
07/25/2012CN202347886U Grid-connected type solar charging shed
07/25/2012CN102612792A Control device for secondary battery, and control method for secondary battery
07/25/2012CN102612701A Energy management system and power feed control device
07/25/2012CN102611378A System and method for compensating current harmonics of permanent-magnet synchronous motor
07/25/2012CN102611377A Magnetic valve type controllable electric reactor control system and control method
07/25/2012CN102611362A High-voltage soft start main circuit
07/25/2012CN102611356A Solar grid-connected electricity generation system for sewage treatment
07/25/2012CN102611183A Method for detecting and protecting isolated island of grid-connected power generation system
07/25/2012CN102611161A Small-size wind and light complementation water suction and energy storage grid-connected electricity generating system as well as charging and discharging control method
07/25/2012CN102611144A Photovoltaic grid-connected power generation device based on multilevel technique
07/25/2012CN102611143A Method for controlling grid-connected current of three-phase grid-connected inverter
07/25/2012CN102611142A Power generator parallel operation system free of restraint of voltage value, frequency and phase difference and method
07/25/2012CN102611141A MPPT (maximum power point tracking) control device and method of photovoltaic inverter based on perturbation method
07/25/2012CN102611140A Grid-connected inverter island detection method based on wavelet transform and neural network
07/25/2012CN102611139A Method and system for controlling wind power plant
07/25/2012CN102611138A Delay-free single-phase photovoltaic synchronization power adjusting method
07/25/2012CN102611137A Three-phase photovoltaic inverter active anti-island method based on reactive power disturbance
07/25/2012CN102611136A Wind power generation equipment
07/25/2012CN102611135A Open loop and closed loop combined maximum power point tracking (MPPT) control method
07/25/2012CN102611134A Network voltage phase-frequency tracking method based on capturing unit
07/25/2012CN102611133A Solar photovoltaic grid-connected electric generating system and electric generating control method
07/25/2012CN102611132A Method for adjusting parameters of additional frequency controller of double-fed variable-speed wind turbine generator
07/25/2012CN102611131A Methods and systems for operating a power generation system
07/25/2012CN102611130A Method for controlling wide-area dynamic wind power grid-tied based on superconducting magnetic energy storage device
07/25/2012CN102611129A Method for coordinated control of reactive voltage of wind generator set and SVC (static var compensator)
07/25/2012CN102611128A Direct-current power modulating method for high-voltage direct-current power transmission system
07/25/2012CN102611127A Control method for unifying self-balancing and self-smoothing of micro-grid
07/25/2012CN102611126A Switching method for flexible switching system based on single-phase inverter power source
07/25/2012CN102611125A Asymmetry parameter three-phase three-winding transformer simulation model and calculation method
07/25/2012CN102611124A Primary frequency regulation control method applicable to thermal generator set of intelligent power grid
07/25/2012CN102611123A Intelligent reactive compensation device based on single three-pole synchronous switch
07/25/2012CN102611122A Vehicle-mounted capacity-adjustable high-voltage power capacitor device
07/25/2012CN102611121A Multi-objective SVG (static var generator) generalized proportional integral error control method of microgrid
07/25/2012CN102611120A Power factor monitoring and compensating system
07/25/2012CN102611119A Multi-target reactive power optimization method for electric system
07/25/2012CN102611118A Method for comprehensively controlling reactive voltage of wind farm with imported prediction method
07/25/2012CN102611117A LC-VSI device reactive compensation control method based on self-adaptive control DC side voltage
07/25/2012CN102611116A Single-phase electric energy quality controller for electrified railway power supply system
07/25/2012CN102611115A Capacitor switching device
07/25/2012CN102611114A Automatic switching device for intelligently controlling parallel operation of 35kV transformers
07/25/2012CN102611113A Automatic switching device for intelligently controlling parallel operation of 110kV three-winding transformers
07/25/2012CN102611112A Management system for optimizing and improving power quality of utility power grid
07/25/2012CN102611111A 有源电力滤波器 Active Power Filter
07/25/2012CN102611110A Software phase-locked loop realization method based on average filtering algorithm
07/25/2012CN102611109A Method for controlling LC (inductance and capacitance) hybrid active power filter with two switch arms
07/25/2012CN102611108A 三电平三相四线有源电力滤波器及其控制方法 Three-level phase four-wire active power filter and control method
07/25/2012CN102611107A Urban medium-voltage power distribution network closed-loop power supply system based on annular net rack
07/25/2012CN102611106A Maximum load supply capability evaluation method of medium-voltage power distribution network for loop power supply
07/25/2012CN102611105A Large-area illumination electric distribution method and induction electric taking units of large-area illumination electric distribution method
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