Patents for H02J 3 - Circuit arrangements for ac mains or ac distribution networks (38,663)
03/2011
03/30/2011CN101609480B Inter-node phase relation identification method of electric system based on wide area measurement noise signal
03/30/2011CN101588070B Method for designing and distributing the dynamic capacity and fixed capacity of parallel connection mixed type comprehensive compensation arrangement
03/30/2011CN101478160B Electric system tide optimization method for high-efficient processing complex electric control appliance
03/30/2011CN101297449B A transmission system
03/30/2011CN101232186B High frequency pulse filter with preposition protective circuit
03/29/2011US7915762 Method for controlling a cluster of wind turbines connected to a utility grid
03/29/2011US7915758 Printed circuit board and method for determining an optimization point for sensing a voltage regulator module on a printed circuit board
03/29/2011US7915757 Multi-output DC/DC converter
03/29/2011US7915756 Semiconductor device
03/29/2011US7915755 System and method for enabling power applications over a single communication wire pair
03/24/2011WO2011034859A2 Full cycle ac power control
03/24/2011WO2011034672A1 Power distribution unit with support for human interface and communication
03/24/2011WO2011034500A1 A method of controlling a wind turbine generator and apparatus for controlling electric power generated by a wind turbine generator
03/24/2011WO2011033352A1 Power distribution system
03/24/2011WO2011033351A1 System for controlling electric power supply to devices
03/24/2011WO2011033350A1 Power distribution system
03/24/2011WO2011033308A2 A power collection and distribution system
03/24/2011WO2011033044A2 Fault tolerant damping of electromechanical oscillations in power systems
03/24/2011WO2011032783A2 Gateway and method for network stabilisation
03/24/2011WO2011032579A1 Monitoring of an electrical energy supply network
03/24/2011WO2011032287A1 Distributed power generation interface
03/24/2011WO2011032265A1 Utilization of distributed generator inverters as statcom
03/24/2011WO2010147420A9 Maximum power tacking device using orthogonal-perturbation signal and maximum power tracking control method thereof
03/24/2011WO2010136335A3 Device for compensating harmonics
03/24/2011WO2010043441A3 Wind energy system
03/24/2011US20110068631 Electrical generator network and a local electrical system
03/24/2011US20110068628 Power assist device
03/24/2011US20110068627 Method of Obtaining DC Microgrid Having Minimized Power Loss
03/24/2011US20110068625 Dual line active automatic transfer switch
03/24/2011US20110068624 Solar powered system with grid backup
03/24/2011DE102010009709A1 Synchronisiereinrichtung und Sychronisierverfahren für den Betrieb von Inselnetzen Synchronizer and Sychronisierverfahren for the operation of isolated networks
03/24/2011DE102009042241A1 Solar-operated charging station for electric vehicle, has solar module and charging regulator together forming unit, where charging station is fed with solar power and receives additional power from power network during less solar radiation
03/24/2011DE102009041726A1 Gateway und Verfahren zur Netzstabilisierung Gateway and procedures for grid stabilization
03/24/2011CA2774401A1 Distributed power generation interface
03/24/2011CA2774200A1 Full cycle ac power control
03/24/2011CA2768101A1 Utilization of distributed generator inverters as statcom
03/23/2011EP2299568A1 System and method for monitoring power filters and detecting power filter failure in a wind turbine electrical generator
03/23/2011EP2299557A2 Power supply cooperation system and uninterruptible power supply device
03/23/2011EP2299555A1 Fault tolerant damping of electromechanical oscillations in power systems
03/23/2011EP2297834A1 Synergistic system between battery charger and battery
03/23/2011EP2297832A1 Time delay compensation in power system control
03/23/2011EP2297635A1 Method and apparatus for designing device-to-device configurations suitable to be used in a power system
03/23/2011CN201774496U Intelligent economizer for hydraulic press
03/23/2011CN201774475U Topological structure for transformer-free solar inverter based on MMC
03/23/2011CN201774450U Thyristor triggering device of magnetic control reactor
03/23/2011CN201774309U Emergency power supply with photovoltaic grid feed function
03/23/2011CN201774303U Power-frequency emergency power supply control circuit of intermediate-frequency core induction furnace
03/23/2011CN201774275U Feedback power system of energy-saving emergency lift
03/23/2011CN201774274U Desert regions grid photovoltaic power generation system with sun azimuth tracker
03/23/2011CN201774273U Double-PWM vector control doubly-fed wind power converter
03/23/2011CN201774272U 双馈风电变流器pwm控制器 Double-fed wind power converter pwm controller
03/23/2011CN201774271U Non-transformer wind-driven generating synchronization topological structure based on MMC
03/23/2011CN201774270U Transformer-free inductive energy storage topological structure
03/23/2011CN201774269U Battery energy storage topological structure without transformer
03/23/2011CN201774268U Wind-solar combined generating set
03/23/2011CN201774267U Solar-energy grid-connected controller
03/23/2011CN201774266U Energy-storage control system
03/23/2011CN201774265U Energy storage power station for clean energy source compensation and energy storage system with clean energy compensation
03/23/2011CN201774264U Transformerless inductive energy storage topological structure based on modularized multi-electrical level of multi media card (MMC)
03/23/2011CN201774263U Non-transformer battery energy storage topological structure based on MMC modular multi-level inverter
03/23/2011CN201774262U 10kV high-voltage hybrid parallel static synchronous compensation device
03/23/2011CN201774261U High-speed railway negative sequence and harmonic compensation system based on two-phase three-wire system converter
03/23/2011CN201774260U Device for reducing voltage fluctuation
03/23/2011CN201774259U Transformerless STATCOM topological structure based on MMC
03/23/2011CN201774258U Compensation filter module device
03/23/2011CN201774257U 智能电子复合开关 Intelligent electronic composite switch
03/23/2011CN201774256U Reactive power compensation circuit of capacitor cabinet
03/23/2011CN201774255U Automatic reactive compensation system for electric power circuits
03/23/2011CN201774254U Dynamic filter compensating cabinet
03/23/2011CN201774253U Modularized filtering and compensating unit structure device
03/23/2011CN201774252U Electrical power system simulation research and development platform based on imaging real-time simulation
03/23/2011CN201774245U PFC overcurrent protecting circuit
03/23/2011CN201771684U Running vehicle wind-energy recovering generating system
03/23/2011CN101989829A Low voltage ride through (LVRT) control system of fixed-blade stalling type wind generating set
03/23/2011CN101989747A System interconnection inverter device and control method thereof
03/23/2011CN101989746A On-line dynamic harmonic treatment device
03/23/2011CN101989745A Method for early detection and anticipatory control of consumer-end load shedding in an electrical grid, and apparatus for carrying out the method
03/23/2011CN101989744A Computer and network-combined energy-saving power generation scheduling method
03/23/2011CN101989743A Energy-saving power generation dispatching optimization method based on direct current power flow
03/23/2011CN101262133B PWM switch control method and device for three-level PFC circuit
03/23/2011CN101039033B Power distribution architecture for actuating moving elements of an aircraft in sequence
03/22/2011US7911082 Solar cell device
03/22/2011US7911081 Power supply control method and structure therefor
03/22/2011US7909143 Elevator system with power consumption control
03/17/2011WO2011031652A2 Three phase power generation from a plurality of direct current sources
03/17/2011WO2011030558A1 Multi-terminal power conversion device, multi-terminal power transfer device, and power network system
03/17/2011WO2011030472A1 Comprehensive monitoring and control system for smart grid and microgrid
03/17/2011WO2011030380A1 Power storage device for electric power generation system and method for operating the power storage device
03/17/2011WO2011030219A1 Hybrid energy market and currency system for total energy management
03/17/2011WO2011030200A1 Power control system
03/17/2011WO2011030195A1 Power control system and electric device
03/17/2011WO2011029805A1 Synchronizing device and synchronizing method for operating island networks
03/17/2011WO2011029767A1 Topology surveying a series of capacitors
03/17/2011WO2011029700A2 Method for controlling current converters and assembly for performing said method
03/17/2011WO2011029566A1 Power transmission and distribution systems
03/17/2011WO2011029480A1 Fault current limitation in dc power transmission systems
03/17/2011WO2010151835A3 Power distribution apparatus with input and output power sensing and method of use
03/17/2011WO2010148181A3 Dynamically controlling configuration of a power grid comprising one or more stand-alone sub-grids
03/17/2011US20110066296 Method and Apparatus for Control of an Electric Power Distribution System in Response to Circuit Abnormalities
03/17/2011US20110062933 Full cycle ac power control