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)
05/2012
05/09/2012CN202218028U Energy storage system of recovered waste and old power batteries
05/09/2012CN202218025U Hoist energy feedback device having emergency function
05/09/2012CN202218024U Parallel power distribution economic operation system
05/09/2012CN202218023U New-energy distributed type energy-storage application control system
05/09/2012CN202218022U Switched-capacitor reactive power compensation system
05/09/2012CN202218021U Reactive power compensation cabinet
05/09/2012CN202218020U Phase-control-type reactive power dynamic compensating device
05/09/2012CN202218019U High-voltage intelligent reactive compensation automatic regulating apparatus
05/09/2012CN202218018U Efficient energy-saving three-phase asynchronous motor compensator
05/09/2012CN202218017U Phase-shifting magnetic filter
05/09/2012CN202218016U Harmonic suppression and protection device
05/09/2012CN202218015U Power module for modularized active filter
05/09/2012CN202218014U Control device for active power filtering of distribution network
05/09/2012CN202218013U Electric energy quality adjuster of electrified railway
05/09/2012CN202217913U Intelligent arc light protection and double-layer reactive power compensation switch cabinet
05/09/2012CN102449871A Photovoltaic system for feeding three-phase current to a power grid
05/09/2012CN102449870A Power flow control in a meshed HVDC power transmission network
05/09/2012CN102449869A Improved internal electrification scheme for power generation plants
05/09/2012CN102448092A Timing method and device for generator of communication base station
05/09/2012CN102447428A Method, device and system for self-locking of power
05/09/2012CN102447396A Transformer with high set-up ratio, solar inverter and solar battery system
05/09/2012CN102447285A Large-capacity battery converter and control method thereof
05/09/2012CN102447268A Robust dicyclic photovoltaic grid-connected control method based on power feedforward
05/09/2012CN102447267A Control method of grid-connected inverter
05/09/2012CN102447266A DVR (Dynamic Voltage Restorers)-based low-voltage ride through support device of wind generating set
05/09/2012CN102447265A Loading device and method for power unit with feedback function
05/09/2012CN102447264A Wind-light integrative power generation system
05/09/2012CN102447263A Doubly fed wind power generation control system on grid network fault condition and method thereof
05/09/2012CN102447262A Controllable bi-directional energy control device and method thereof
05/09/2012CN102447261A Alternate charging starting circuit and control method for chained static synchronous compensator
05/09/2012CN102447260A High-voltage reactive power compensation IGBT power cabinet
05/09/2012CN102447259A Switching method based on capacitor optimization
05/09/2012CN102447258A Methods, systems, and apparatus for shedding loads from an electrical grid
05/09/2012CN102447257A Load coordinating power draw for limited ampacity circuits
05/09/2012CN102447256A Power management system and method for controlling the same
05/09/2012CN102447255A Power management apparatus, power management system and method for controlling power management system
05/09/2012CN102447254A Tidal current method of annular distribution network based on compensating current
05/09/2012CN101872983B Load-type rapid grid connection device of small water turbine generator set
05/09/2012CN101752877B Photovoltaic synchronization inverter with photovoltaic array IV test function and test method
05/09/2012CN101737266B Megawatt-level variable speed wind generating set featuring flexible combination of multiple electric generators and control method thereof
05/09/2012CN101680428B Variable speed wind turbine with doubly-fed induction generator compensated for varying rotor speed
05/09/2012CN101599649B Directly-driven wind power generation system and mode for modulating SPWM inversion control signal in system
05/09/2012CN101494382B Large-capacity stillness wattless occurrence apparatus
05/08/2012US8175755 Systems and methods for monitoring power devices
05/08/2012US8174151 Power supply control apparatus
05/08/2012US8174148 Controllable electrical outlet and a method of operation thereof
05/08/2012CA2678031C Generator power plant protection system and method
05/03/2012WO2012058680A2 Regenerative power charging for electricity generation systems
05/03/2012WO2012058114A2 Method and system facilitating control strategy for power electronics interface of distributed generation resources
05/03/2012WO2012057846A1 Dispatching mobile energy resources to respond to electric power grid conditions
05/03/2012WO2012057307A1 Control device for power management
05/03/2012WO2012057305A1 Control device for power management
05/03/2012WO2012057119A1 Electricity supply system
05/03/2012WO2012056581A1 Operating capacity management system for energy-supplying devices
05/03/2012WO2012056533A1 Air conditioning control system and program
05/03/2012WO2012056272A1 Method and apparatus for reducing electrical power consumption
05/03/2012WO2012055447A1 Voltage balancing of symmetric hvdc monopole transmission lines after earth faults
05/03/2012WO2012055438A1 Voltage control in a direct current power system
05/03/2012WO2012055322A1 Method, apparatus and system for suppressing low frequency oscillation in power system
05/03/2012WO2012055236A1 Power supply system with integration of wind power, solar energy, diesels and mains supply
05/03/2012WO2012055011A1 Method for integrating controls for captive power generation facilities with controls for metallurgical facilities
05/03/2012WO2011162578A3 Network system
05/03/2012WO2011089169A3 Method for using energy temporarily present in a power grid and exceeding the instantaneous power load
05/03/2012US20120104864 AC Power Systems for Renewable Electrical Energy
05/03/2012US20120104863 System and Method for Combining Electrical Power from Photovoltaic Sources
05/03/2012US20120104850 Single phase power factor correction system and method
05/03/2012US20120104849 Electrical Supply Apparatus
05/03/2012US20120104847 Distributed power generation
05/03/2012DE102010050020A1 System und Verfahren zur vollständigen und uneingeschränkten Nutzung von ungesteuert erzeugter elektrischer Energie System and method for complete and unrestricted use of uncontrolled electrical energy generated
05/03/2012DE102010043176A1 Elektrische Schaltung zur Umwandlung elektrischer Energie zwischen einem dreiphasigen Stromnetz und einem einphasigen Stromnetz Electrical circuit for converting electrical energy between a three-phase power supply and a single-phase network
05/03/2012CA2814864A1 Method and system facilitating control strategy for power electronics interface of distributed generation resources
05/02/2012EP2448370A1 Cooking device, control method and programme for same
05/02/2012EP2448080A2 Converter control system
05/02/2012EP2448079A2 Method and System for Providing Increased Turbine Output for Doubly Fed Induction Generator
05/02/2012EP2448078A2 Electrical circuit for converting electrical energy between a tri-phase power network and a single-phase power network
05/02/2012EP2447957A2 Superconducting cable system
05/02/2012EP2447729A1 Battery control apparatus and battery control method
05/02/2012EP2446519A1 Load scheduling optimization in distributed system
05/02/2012EP2446517A1 Power distribution apparatus
05/02/2012EP2446516A2 Power distribution apparatus with input and output power sensing and method of use
05/02/2012DE202012101295U1 Mobiles multifunktionales Solar-Gartengerätecenter für Elektrogartengeräte Mobile multi-functional solar garden equipment garden center for electrical appliances
05/02/2012CN202210685U Large-scale wind power plant step-up transformer system
05/02/2012CN202210684U Electric energy saver with high power factor
05/02/2012CN202210683U Intelligent dynamic reactive power compensation device
05/02/2012CN202210682U Vacuum tapping-off voltage-adjusting wattless automatic compensation integrated device
05/02/2012CN202210681U General voltage-reduction power saver
05/02/2012CN202210680U Dynamic power flow control device with controllable transformer of wave trap
05/02/2012CN202210679U Controllable transformer dynamic power flow control device
05/02/2012CN1470092B Island electric network and method for operation of an island electric network
05/02/2012CN102439812A Method and apparatus for the directional transmission of electricity in an electricity grid
05/02/2012CN102439782A Lead storage battery and lead storage battery system for utilizing natural energy
05/02/2012CN102437811A Low voltage ride through control method of permanent magnet direct drive wind power generation system with flywheel energy storage unit during power grid symmetrical short circuit default
05/02/2012CN102437808A Method and apparatus for controlling wind turbine electric power generation
05/02/2012CN102437793A Distributed grid-connected solar energy photovoltaic system
05/02/2012CN102437772A Bipolar modulation control device of high frequency pulse alternating current link inverter
05/02/2012CN102437758A Single-phase inverter
05/02/2012CN102437757A Single-phase inverter
05/02/2012CN102437753A Three-ring control method of three-phase PWM (Pulse-Width Modulation) rectifier for LCL (Lower Control Limit) filtering
05/02/2012CN102437743A Boost conversion circuit, solar inverter and control method thereof
05/02/2012CN102437699A Direct grid connection speed change constant frequency generator
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