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)
08/2012
08/01/2012CN202364132U Multifunctional high-power power-electronic converter
08/01/2012CN202363912U Crowbar device for low voltage ride through (LVRT) of double-fed wind power generation system
08/01/2012CN202363911U Small-size wind generating set
08/01/2012CN202363910U Grounding knife-switch position structure on valve sides of converting transformers in valve hall of three-winding converting transformer-quadruple valve
08/01/2012CN202363909U Energy storing device in charging mode at valley of demand for power and in power supplying mode at peak of demand for power
08/01/2012CN202363908U Switching low-voltage dynamic reactive power compensation device with compact compound switches
08/01/2012CN202363907U Multifunctional energy saver
08/01/2012CN202363906U Intelligent filtering and reactive compensation device of AC motor
08/01/2012CN202363905U Low-voltage reactive compensation and harmonic treatment apparatus
08/01/2012CN202363904U New energy vehicle filtering apparatus and new energy vehicle using the apparatus
08/01/2012CN202363903U Single tuned filter
08/01/2012CN202363902U System for managing micro-grid energy
08/01/2012CN202363901U Electric energy saving device
08/01/2012CN202363229U Electric reactor, power supply system and electric motor voltage regulating device
08/01/2012CN202363222U Magnetic control reactor with single-phase double-column rectangular oval iron cores
08/01/2012CN202363221U Double-three-column triangular inclined angle oval iron core magnetic control reactor
08/01/2012CN202363220U Magnetically controlled reactor with double bevelled triangular right-angled elliptic three-column iron cores
08/01/2012CN202363219U Magnetically-controlled reactor with double elliptic three-column iron cores with bevel
08/01/2012CN202363218U Magnetic control reactor with double three-column triangular rectangular oval iron cores
08/01/2012CN202363217U Hexastyle bevel angle elliptical iron core magnetic control reactor
08/01/2012CN102625970A Electrical charging device
08/01/2012CN102625969A Three phase power generation from a plurality of direct current sources
08/01/2012CN102624321A Electromagnetic torque jitter elimination method for doubly-fed induction wind driven generator
08/01/2012CN102624309A Variable-speed double-fed wind power station clustering equating method based on mechanical and electrical dynamic characteristics
08/01/2012CN102624286A Solar generating system used for building and adopting micro inverters
08/01/2012CN102624274A Interleaving parallel grid-connected inverter and control method thereof
08/01/2012CN102624249A Compound control method of three-phase to two-phase orthogonal inverter power supply with reactive compensation function
08/01/2012CN102624070A Symmetric-type uninterruptible power supply (UPS) power system based on nine-phase phase-shifting autotransformer
08/01/2012CN102624034A Wind power station dispatching fit type idle work operation method suitable for high voltage power grid
08/01/2012CN102624033A Solar converter system and control method thereof
08/01/2012CN102624032A Automatic switching device for intelligently controlling parallel running of two 110kV winding transformers
08/01/2012CN102624031A Grid-connected inversion control device for wind driven generator
08/01/2012CN102624030A Photovoltaic/storage battery mixed type current inverter-based distributed generation system
08/01/2012CN102624029A Topological structure specific to low voltage ride through for doubly-fed type wind power generation system
08/01/2012CN102624028A Photovoltaic grid connection power generation system based on solar panel access method selector
08/01/2012CN102624027A Multiprocess island effect detection device and method
08/01/2012CN102624026A Variable speed wind-power system based on variable frequency transformer and control method of variable speed wind-power system
08/01/2012CN102624025A Energy feedback device with composite unit cascade multi-level inverter circuit and control method of energy feedback device
08/01/2012CN102624024A Micro-power consumption clean energy storage system
08/01/2012CN102624023A Reactive voltage control system of wind farm of doubly-fed set
08/01/2012CN102624022A Photovoltaic grid-connected power generation system and direct current bus voltage control method thereof
08/01/2012CN102624021A Grid connection system for screw expansion generating set
08/01/2012CN102624020A Logic interlock method of a screw expansion power generating set grid connection system
08/01/2012CN102624019A Single-phase 660V-3.3KV long-distance distributed direct power supply system
08/01/2012CN102624018A Distributed hybrid power supply intelligent grid system and control method
08/01/2012CN102624017A Battery energy storage system peak clipping and valley filling real-time control method based on load prediction
08/01/2012CN102624016A Bidirectional energy flowing flow battery energy storage grid connection device and control method thereof
08/01/2012CN102624015A Control device for interchanging electric energy of electric vehicle and electric energy of residence
08/01/2012CN102624014A System and method for balancing and controlling active power load
08/01/2012CN102624013A Phase compensation principle-based design method for energy storage damping controller
08/01/2012CN102624012A Method for distinguishing negative damping low frequency oscillation on the basis of moment decomposition integral algorithm
08/01/2012CN102624011A Distributed generation reactive compensation device
08/01/2012CN102624010A Dynamic reactive compensation control method applied to alternating current-direct current hybrid transmission power grid
08/01/2012CN102624009A Reactive compensation and power filtering device based on two stage inductance and switching method thereof
08/01/2012CN102624008A European-type transformer reactive power compensation device
08/01/2012CN102624007A Complete capacitor equipment
08/01/2012CN102624006A Control method for single-phase cascade type static synchronous compensator
08/01/2012CN102624005A Combined-type high voltage compensation on-load tuning method
08/01/2012CN102624004A Magnetic valve controllable reactor
08/01/2012CN102624003A Bidirectional PWM (pulse-width modulation) chopped-mode dynamic reactive power compensation device
08/01/2012CN102624002A Reactive power compensation and filtering integrated device
08/01/2012CN102624001A Hybrid electric filtering device based on triple harmonic active filter
08/01/2012CN102624000A Power system harmonic state estimation method based on automatic differentiation
08/01/2012CN102623999A Novel triangular power filter
08/01/2012CN102623998A Active power filtering device
08/01/2012CN102623997A Method for realizing a feedback linearization double hysteresis composite controller of active power filter
08/01/2012CN102623996A Active power filter closed loop control method based on decoupling resonance regulator array
08/01/2012CN102623995A Device for generating torsional electromagnetic wave and electric power system employing the same
08/01/2012CN102623994A Substation area control method and system of microgrid operation mode
08/01/2012CN102623993A Distributed power system state estimation method
08/01/2012CN102623992A Method for islanding microgrid control and optimization based on rotating coordinate virtual impedance
08/01/2012CN102623991A Microgrid energy management system and method
08/01/2012CN102623990A Low-frequency deloading parameter online checking method of self-adaptation power grid operation mode
08/01/2012CN102623989A Method for optimization and configuration of intermittent distributed generation (DG)
08/01/2012CN102623988A Automatic generating method for day-ahead plan power flow in power grid
08/01/2012CN102623987A Multiple-DC (direct current)-droppoint selection method based on multiple feed-in short circuit ratios
08/01/2012CN102055207B Intelligent power control unit for low voltage ride through and application thereof
08/01/2012CN101882785B Flow analysis system and method for intelligent power distribution networks containing distributed generation
08/01/2012CN101719669B Assessment method for long-term voltage stability in power system based on generator exciting current limit
08/01/2012CN101116232B Building energy management system
08/01/2012CA2766280A1 Active desynchronization of switching converters
07/2012
07/31/2012US8232680 Selecting a single AC source for a switching power supply
07/31/2012US8232674 Multiple output isolated DC/DC power converters
07/31/2012US8232668 Synchronization point detection method and power line communication apparatus
07/31/2012CA2764080A1 Reactive voltage control system and method for wind power field of double-fed wind power-generating unit
07/27/2012CA2765814A1 Hybrid inverter generator
07/26/2012WO2012100183A2 Driving circuitry for led lighting with reduced total harmonic distortion
07/26/2012WO2012099272A1 Television with coupled electrical power
07/26/2012WO2012098769A1 Photovoltaic power generation system and power feeding system
07/26/2012WO2012098729A1 Power demand regulation apparatus, power regulation network system, and power regulation method
07/26/2012WO2012098392A1 Solar photovoltaic systems
07/26/2012WO2012097866A1 A high voltage dc power source and a power apparatus for a high voltage electrical power system
07/26/2012WO2012097816A1 Operating wind turbines under converter faults
07/26/2012WO2012074311A3 Parallel operating inverter wind power generating system using a current balancer
07/26/2012WO2012054106A3 Method and apparatus for minimizing harmonic currents in a wind turbine park
07/26/2012WO2012031992A3 Method for stabilizing an electric grid
07/26/2012WO2012030772A3 Power demand surge management circuit
07/26/2012WO2012019837A3 Method for computer-aided control of the electrical power consumption of a plurality of power consumers in an electrical power grid
07/26/2012WO2011081943A3 System and method for providing dynamic power management
07/26/2012US20120187770 System and method for synchronizing multiple generators with an electrical power distribution system
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