Patents for H02J 3 - Circuit arrangements for ac mains or ac distribution networks (38,663) |
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07/10/2013 | CN103201925A Control circuit and method for converters of wind turbines |
07/10/2013 | CN103201924A System control apparatus for facilities |
07/10/2013 | CN103199747A Method for using battery energy storage system to smooth power of photovoltaic power generation system |
07/10/2013 | CN103199722A Method used for offering reactive compensation to single-phase photovoltaic grid-connected inverter |
07/10/2013 | CN103199720A Comprehensive control method of three-phase power converter |
07/10/2013 | CN103199691A Zero power starting method of thermal generator set with high-voltage direct-current transmission system |
07/10/2013 | CN103199571A Self-adaption power regulation method of electric vehicle participating in power grid frequency modulation |
07/10/2013 | CN103199565A Multi-zone automatic generation control coordination method based on differential game theory |
07/10/2013 | CN103199564A Intelligent power grid distributed self-supporting photovoltaic power supply system |
07/10/2013 | CN103199563A Initiative frequency shift type island detection method of low-output-current harmonic content |
07/10/2013 | CN103199562A Wind power station active power control method |
07/10/2013 | CN103199561A Wind-light-hydrogen complementary grid-connection power station based on fuel cells, wind energy and solar energy |
07/10/2013 | CN103199560A Box-type integrated multiple micro source interface micro power grid connected system device |
07/10/2013 | CN103199559A Intelligent center control type solar energy family roof grid-connected power generation system and operating method thereof |
07/10/2013 | CN103199558A Large-scale wind power convergence area sending-out capacity determination method and large-scale wind power convergence area sending-out capacity determination equipment |
07/10/2013 | CN103199557A TMS320F2812-based unified control method for photovoltaic grid connection and power quality comprehensive management |
07/10/2013 | CN103199556A Microgrid energy management method and system thereof |
07/10/2013 | CN103199555A Control method of secondary frequency modulation of electrical power system with participation of load side resources |
07/10/2013 | CN103199554A Method for achieving power grid light storage system capacity configuration and optimization distribution |
07/10/2013 | CN103199553A Method for fast eliminating power system ferroresonance |
07/10/2013 | CN103199552A Rapid inhibition method for stand-alone infinite electric system chaos oscillation |
07/10/2013 | CN103199551A Stationing and parameter optimization method of syntony-type fault current limiter |
07/10/2013 | CN103199550A Capacitor voltage balance control method of cascade reactive power compensation device |
07/10/2013 | CN103199549A Receiving-end power grid dynamic reactive power compensation equipment configuration position selecting method |
07/10/2013 | CN103199548A Capacitor grouping balancing system and capacitor grouping balancing method |
07/10/2013 | CN103199547A Pulse-width modulation (PWM) rectifier and static synchronous compensator combined operation system and control method thereof |
07/10/2013 | CN103199546A Optimal secondary regulator of dynamic reactive power compensation device and design method thereof |
07/10/2013 | CN103199545A Optimal secondary Gauss controller of dynamic reactive power compensation device and design method thereof |
07/10/2013 | CN103199544A Reactive power optimization method of electrical power system |
07/10/2013 | CN103199543A Angle form chain-type static var generator (SVG) directive current extraction method considering negative sequence compensation |
07/10/2013 | CN103199542A Method of optimal control of wind power plant reactive voltage |
07/10/2013 | CN103199541A Self-excitation magnetically controlled reactor reactive compensation control device and compensation control method thereof |
07/10/2013 | CN103199540A Low-voltage reactive compensation thyristor switch capacitor compensation device and compensation method thereof |
07/10/2013 | CN103199539A Voltage dip compensation method of unified power quality conditioner with zero input active power |
07/10/2013 | CN103199538A Day-ahead planed multi-scale imminent generation scheduling closed-loop control method |
07/10/2013 | CN103199537A Intelligent power distribution network frequency signal collaborative obtaining method and circuit |
07/10/2013 | CN103199536A Capacitor bank switching method under harmonic conditions |
07/10/2013 | CN103199535A Dynamic compensation filtering module device |
07/10/2013 | CN103199534A Improved beat control method of active filter |
07/10/2013 | CN103199533A Passive filter optimal design method based on two-point type working condition |
07/10/2013 | CN103199532A Non-delayed single-phase phase-locked loop second harmonic filtering method |
07/10/2013 | CN103199531A Light storage system power slide control method based on second order cone programming |
07/10/2013 | CN103199530A Active power filter with method for processing harmonic waves in energy-saving and consumption-reducing mode |
07/10/2013 | CN103199529A IEC61850 standard-based microgrid comprehensive coordination control framework |
07/10/2013 | CN103199528A Status estimating and coordinating method of wide-area power system |
07/10/2013 | CN103199527A Strong-connection power grid out-of-step disconnection method |
07/10/2013 | CN103199526A Short circuit power frequency electrical quantity calculating method for power system comprising doubly-fed induction generator |
07/10/2013 | CN103199525A Power distribution network flow computing method based on equivalent node injecting current transformation |
07/10/2013 | CN103199524A Load flow calculation method adapting to multiple distributed power access |
07/10/2013 | CN103199523A Power grid wind power time and space power fluctuation assessment method |
07/10/2013 | CN103199522A Controllable phase shifter used for super /extra-high voltage circuit and parameter design method thereof |
07/10/2013 | CN103199521A Power network planning construction method based on network reconstruction and optimized load-flow simulating calculation |
07/10/2013 | CN103199477A Circuit alternating current (AC) ice melting method and circuit AC ice melting device |
07/10/2013 | CN103198188A Static synchronous compensator (STATCOM) modeling method in power system analysis software package |
07/10/2013 | CN103198184A Low-frequency oscillation character noise-like identification method in electric power system |
07/10/2013 | CN102801157B Wind and photovoltaic complementary power generation system reliability evaluation method based on Copula theory |
07/10/2013 | CN102403735B Method and system for switching microgrid between island mode and grid connected mode |
07/10/2013 | CN102263417B Method for designing hybrid damping parameter of LCL filter in photovoltaic grid-connected inverter |
07/10/2013 | CN102255328B Method for determining capacity of energy storing device accessed to wind power station based on spectrum analysis |
07/10/2013 | CN102231534B Two-stage single-phase photovoltaic grid-connected system and control method thereof adopting DC side voltage sensor-free control strategy |
07/10/2013 | CN102055186B Method and device for processing power system topology structure information |
07/10/2013 | CN102037627B Decision device with minimum power transmission loss system, method |
07/10/2013 | CN101872977B Method for optimally controlling influences among harmonic sources and power quality of smart grid |
07/10/2013 | CN101772871B Controlling power supply to vehicles through a series of electrical outlets |
07/10/2013 | CN101651348B Systems and methods of dynamic reactive support for a power transmission system |
07/10/2013 | CN101635463B Reactive configuration method for capacity of capacitor bank in substation |
07/10/2013 | CN101635456B Method for joint state estimation of transmission network and distribution network |
07/10/2013 | CN101582592B Transformer-less photovoltaic merging and inverting device and control method thereof |
07/09/2013 | US8482886 Protection circuit, resonant converter including the protection circuit, and protecting method of the resonant converter |
07/09/2013 | DE202012101240U1 Energiemanagementsystem Energy management system |
07/04/2013 | WO2013101868A1 Multiphase electrical power construction and assignment at minimal loss |
07/04/2013 | WO2013101865A1 Multiphase electrical power assignment at minimal loss |
07/04/2013 | WO2013101862A1 Multiphase electrical power phase identification |
07/04/2013 | WO2013101779A1 Load control system having independently-controlled units responsive to a broadcsat controller |
07/04/2013 | WO2013101766A1 Load control system having a broadcast controller with a diverse wireless communication system |
07/04/2013 | WO2013101521A1 Method of detecting instability in islanded electrical systems |
07/04/2013 | WO2013100907A1 Satellite signal-based utility grid control |
07/04/2013 | WO2013098233A2 Adaptation of a power generation capacity and determining of an energy storage unit size |
07/04/2013 | WO2013098184A2 Method of determining remedial control actions for a power system in an insecure state |
07/04/2013 | WO2012166946A3 Connectivity control of photovoltaic generators via power line communication |
07/04/2013 | WO2012161993A3 Bidirectional demand response control |
07/04/2013 | US20130169064 Energy storage system and controlling method of the same |
07/04/2013 | US20130169063 USB Connector, PCB Connected Thereto, and USB Device |
07/04/2013 | US20130169055 Installation for producing electricity including a plurality of electricity producing devices capable of transforming mechanical energy into electric energy |
07/04/2013 | US20130169044 Stable subsea electric power transmission to run subsea high speed motors |
07/04/2013 | DE102011122656A1 Method for stabilizing electric power supply system in regional supply/low voltage network, involves switching power supply of individual power consumers at predetermined minimum fall time, while determining selected power consumers |
07/04/2013 | DE102011122581A1 Method of operating electrical supply system, involves operating inverter at operating point in such manner that voltage level of half of average of rated voltage and maximum allowable voltage is present at entry point |
07/04/2013 | DE102011122580A1 Method for operating electrical supply network in e.g. larger photovoltaic system, involves controlling line voltage changing unit depending on power available in electrical supply network to influence energy consumption |
07/04/2013 | DE102011121707A1 Elektrisches System für ein Luftfahrzeug An electrical system for an aircraft |
07/04/2013 | DE102011090141A1 Verfahren und Vorrichtung zur Nutzung elektrischer Energie einer an ein Hausstromnetz angeschlossenen Einrichtung zur Erzeugung erneuerbarer elektrischer Energie Method and apparatus for use of electrical energy a line connected to a household power supply means for generating renewable electrical energy |
07/04/2013 | DE102011054347A1 Power supply unit for supplying power to load, has main assembly and auxiliary assembly feeding power into intermediate storage, and controlling and regulating assembly continuously delivering controlled power of unit to load |
07/03/2013 | EP2611023A1 Inverter device and solar grid-connected photovoltaic system using same |
07/03/2013 | EP2610989A1 Electricity production facility comprising a plurality of electricity-generating devices capable of converting mechanical energy into electric power |
07/03/2013 | EP2610988A2 Reactive power controller for controlling reactive power in a wind farm |
07/03/2013 | EP2610987A2 Power quality monitoring apparatus for railway power system |
07/03/2013 | EP2610986A1 A method for determining a power outage probability of an electrical power grid, a method for an adaptation of a power generation capacity and a method for determining an energy storage unit size |
07/03/2013 | EP2610486A1 Wind power generation apparatus and output control method |
07/03/2013 | EP2610454A1 Marine vessel denitration system, marine vessel equipped with same, and control method for marine vessel denitration system |
07/03/2013 | EP2609664A1 Intelligent electronic interface for a thermal energy storage module, and methods for stored thermal energy and thermal energy storage capacity trading |
07/03/2013 | EP2609663A1 Device and method for filtering in electrical power networks |