Patents for H02J 3 - Circuit arrangements for ac mains or ac distribution networks (38,663) |
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11/23/2011 | CN102255325A Method for improving system damping by using additional damping controller of wind turbine |
11/23/2011 | CN102255324A Networking power compensation control system |
11/23/2011 | CN102255323A Method for calculating reactive power limits of double-feed wind generating set |
11/23/2011 | CN102255322A Method for interactively iterative control of voltage reactive power of regional power grid |
11/23/2011 | CN102255321A Method and detection device for detecting AVC (Automatic Volume Control) system |
11/23/2011 | CN102255320A Voltage reactive real-time control system of regional power grid and enclosed loop control method thereof |
11/23/2011 | CN102255319A Electrical network voltage wattless real time control assessment method based on section data extraction and system thereof |
11/23/2011 | CN102255318A Capacitor breaker and isolation switch device |
11/23/2011 | CN102255317A Earthquake alarm household electronic power saver |
11/23/2011 | CN102255316A In-phase static reactive power controller and control method thereof |
11/23/2011 | CN102255315A Three-phase current balance adjustment system of electric energy adjusting and electricity saving device |
11/23/2011 | CN102255314A Power unit of active power filter |
11/23/2011 | CN102255313A Active-type harmonic control and reactive power control comprehensive device |
11/23/2011 | CN102255312A Method for inhibiting switch burrs of back-to-back harmonic source |
11/23/2011 | CN102255311A Method for controlling automatic gain control (AGC) set |
11/23/2011 | CN102255310A AVC (Automatic Voltage Control) evaluation method and system |
11/23/2011 | CN102255309A Self-healing control method of centralized distribution network |
11/23/2011 | CN102255308A Method for identifying normal state of distribution network |
11/23/2011 | CN102255307A Layering equivalence method for reliability estimation of distribution network |
11/23/2011 | CN102254256A Transmission and distribution network integration comprehensive line loss management analysis system and processing flow thereof |
11/23/2011 | CN102254101A Intelligent cloud analyzing system of power gird system and data analyzing method thereof |
11/23/2011 | CN102252531A Submerged-arc furnace controller with low-pressure reactive compensation and electrode current control |
11/23/2011 | CN102251852A Simply grid-connected small gas generating set |
11/23/2011 | CN101604843B Method for reducing line loss by regulating running voltage of distribution network |
11/23/2011 | CN101527458B Parallel type energy feedback elevator system |
11/23/2011 | CN101335455B Dynamic reactive compensator |
11/22/2011 | US8065542 Distributed table-driven power mode computation for controlling optimal clock and voltage switching |
11/22/2011 | US8063513 Power source and method for controlling operational power |
11/22/2011 | US8063508 Power supply scheme for reduced power compensation |
11/22/2011 | US8063504 Systems and methods for powering circuits for a communications interface |
11/21/2011 | CA2740319A1 Current supply arrangement with a first current supply device and a second current supply device |
11/21/2011 | CA2708733A1 Transfer switch enclosure |
11/17/2011 | WO2011142830A2 Apparatus and methods for controlling light fixtures and electrical appliances |
11/17/2011 | WO2011142330A1 Electric power supply system |
11/17/2011 | WO2011142296A1 Power-generation schedule creating apparatus |
11/17/2011 | WO2011142014A1 Connection device for electric power converters |
11/17/2011 | WO2011141811A1 Uninterruptible power supply systems and methods using isolated interface for variably available power source |
11/17/2011 | WO2011141798A2 Electric power control apparatus and grid connection system having same |
11/17/2011 | WO2011141214A1 Method and apparatus for determining an excess amount of energy of an electric energy store of a vehicle |
11/17/2011 | WO2011141053A1 A high voltage dc switchyard with semiconductor switches |
11/17/2011 | WO2011141052A1 A plant for transmitting high voltage dc electric power including overvoltage protection |
11/17/2011 | WO2011140841A1 Conjugate multi-directional inversion power supply |
11/17/2011 | WO2011140840A1 Networking method for hierarchical control micro-grids |
11/17/2011 | WO2011140771A1 Communication power supply wiring unit and method compatible to various alternating current input mode |
11/17/2011 | WO2011140597A1 Methods and apparatus for supplying three phase power |
11/17/2011 | WO2011104273A3 Method and control arrangement for controlling a reactive power source |
11/17/2011 | WO2011087783A3 Ac diversion mode controller |
11/17/2011 | WO2011059804A3 Method of recovering power losses in a residential, commercial or industrial facility |
11/17/2011 | WO2011055226A3 Electric power supply system comprising power modules coupled in parallel |
11/17/2011 | US20110282513 System, apparatus and method for controlling charge and discharge of electric vehicle |
11/17/2011 | US20110282510 Apparatus and method for energy management |
11/17/2011 | US20110278939 Electrical Power Transfer Plug and Connection System |
11/17/2011 | US20110278928 Wind-powered data center |
11/17/2011 | US20110278922 Bi-Level Switching With Power Packs |
11/17/2011 | US20110278921 Adaptive Power Bus |
11/17/2011 | US20110278917 Apparatus and method for coupling rf and ac signals to provide power to a multipole in a mass spectrometer |
11/17/2011 | DE102010020609A1 Schalteinrichtung Switching device |
11/16/2011 | EP2387128A1 Power control system and method and program for controlling power control system |
11/16/2011 | EP2386754A1 System for control of wind power electricity generation accumulator and method of control thereof |
11/16/2011 | EP2386137A1 Reconfigurable power converter module |
11/16/2011 | CN202043052U Intelligent photovoltaic inverter and power generating system with same |
11/16/2011 | CN202043020U Insulating beam used in high-voltage direct current converter valve |
11/16/2011 | CN202042945U Integrated and split type combined flow changing chain controller |
11/16/2011 | CN202042912U Parallel power generation system |
11/16/2011 | CN202042911U Micro grid control device |
11/16/2011 | CN202042910U Renewable energy centralized power generation device |
11/16/2011 | CN202042909U Longitudinal capacitance compensation device for submerged arc furnace |
11/16/2011 | CN202042908U Self-excited four-tap magnetically-controlled reactor |
11/16/2011 | CN202042907U Small-sized energy-saving filtering /compensation device |
11/16/2011 | CN202042906U Voltage spike filter |
11/16/2011 | CN202042905U Double tuned filter applied to automatic tracing compensation arc suppression coil complete device |
11/16/2011 | CN202042904U Automatic on-line tracking and monitoring device for capacitance and current of power grid |
11/16/2011 | CN202042812U Dual power supply power distribution device for high-capacity transformer |
11/16/2011 | CN202042811U Switch type 10KV (kilovolt) temporary box type power transformation equipment with outlets capacity not larger than 800KVA (kilovolt ampere) |
11/16/2011 | CN202042800U Installation structure for main loop internal component of optimized power saving device |
11/16/2011 | CN202042309U Adjustable iron core reactor |
11/16/2011 | CN202040021U Megawatt wind power seawater desalination system suitable for island power grid |
11/16/2011 | CN202040016U Wind turbine device in operation by using solar energy to regulate speed |
11/16/2011 | CN102246383A Autonomous distributed AC power system |
11/16/2011 | CN102246382A Fuel cell device and method for feeding electrical current to electrical network |
11/16/2011 | CN102246381A System and apparatus for power transfer to vessels |
11/16/2011 | CN102246380A Improved DC bus regulator |
11/16/2011 | CN102246379A A method of upgrading a plant for transmitting electric power and such a plant |
11/16/2011 | CN102246378A Power saving system and method |
11/16/2011 | CN102246377A System, apparatus and method for power transfer to vessels |
11/16/2011 | CN102246376A Universal power inlet system for power distribution units |
11/16/2011 | CN102244498A Power generating unit driver, power generating unit and energy output equipment in power grid |
11/16/2011 | CN102244475A Inverter current control method based on repetitive control |
11/16/2011 | CN102244404A Intelligent MD (maintenance device) of storage battery |
11/16/2011 | CN102244401A System, apparatus and method for controlling charge and discharge of electric vehicle |
11/16/2011 | CN102244394A Two-stage initiative separation method based on normalized spectral clustering and constrained spectral clustering |
11/16/2011 | CN102244393A System and method for photovoltaic plant power curve measurement and health monitoring |
11/16/2011 | CN102244392A Automated mechanical disconnection of an electrical converter module in a frequency converter arrangement |
11/16/2011 | CN102244391A Energy storage grid-connected circuit based on lithium batteries and super capacitor and control method thereof |
11/16/2011 | CN102244390A Smooth energy storage system capacity optimization method for microgrid junctor power fluctuation |
11/16/2011 | CN102244389A Method for solving imbalance of three-phase currents and managing negative sequence based on SVG (scalable vector graphics) device |
11/16/2011 | CN102244388A Reactive power compensation and filtering device with automatically adjustable inductance ratio |
11/16/2011 | CN102244387A Application of SPWM (Sinusoidal Pulse Width Modulation) control technique based on amplitude and frequency compression modulation to active power filtering |
11/16/2011 | CN102244386A Device and method for adjusting low harmonic power |
11/16/2011 | CN102244385A DVR (dynamic voltage restorer) control system based on DSP (digital signal processor) chip and FPGA (field programmable gate array) chip |