Patents for H02J 3 - Circuit arrangements for ac mains or ac distribution networks (38,663)
03/2013
03/28/2013WO2013042308A1 Electric power conditioning device and method for conditioning electric power
03/28/2013WO2013041614A2 Method of opening a bypass switch of a high voltage direct current network
03/28/2013WO2013041534A2 Provision of control power with a photovoltaic arrangement
03/28/2013WO2013041443A2 Methods of controlling a combined plant including at least one generator and an energy store
03/28/2013WO2013041010A1 Traction power supply system able to realize separation of up/downlink power supply arms to supply power in the manner of at
03/28/2013WO2013040948A1 Domain-based safety evaluation method for power distribution system
03/28/2013WO2013040837A1 Computer monitoring method for microgrid system
03/28/2013WO2013040657A1 Power monitoring and signal unit
03/28/2013WO2012171014A3 Smart and scalable off-grid mini-inverters
03/28/2013WO2012054161A3 Microgrid control system
03/28/2013WO2011149562A3 Superconducting electricity transmission system
03/28/2013WO2011061075A3 Method, device and system for responsive load management using frequency regulation credits
03/28/2013US20130079945 Method and system for operating a power generation and delivery system
03/28/2013US20130076131 Distributed power generation system and operation method thereof
03/28/2013US20130076130 Transformer control device and method based on three-dimensional zone diagram policy
03/28/2013US20130076119 Systems and methods to emulate high frequency electrical signatures
03/28/2013US20130076118 Wire connecting method and converter station for ultra-high voltage direct current power transmission, and ultra-high voltage direct current power transmission system
03/28/2013DE102011115189A1 PV-Anlage mit Sicherung gegen Einspeisung in ein öffentliches Stromversorgungsnetz PV system with protection against feeding into a public power supply network
03/28/2013DE102011114190A1 Method for covering energy requirement of building, involves using Leonard converter or rotary converter bi-directionally when there is power demand and sufficient energy is available in accumulator
03/28/2013DE102011083490A1 Electrical power system has control unit that is provided to control electric power generation unit based on received load default value and to send power alteration signal to electric power generation unit
03/28/2013DE102011054002A1 Dezentrale Energieerzeugungsanlage mit Einrichtung und Verfahren zur Inselnetzerkennung Distributed power generation plant with device and method for islanding detection
03/28/2013CA2848930A1 Method of opening a bypass switch of a high voltage direct current network
03/28/2013CA2848807A1 Methods of controlling a combined plant including at least one generator and an energy store
03/27/2013EP2573897A2 Assembly for operating at least one consumer with the electric power of a regenerative energy source
03/27/2013EP2573896A1 Methods of controlling a combined plant including at least one generator and an energy store
03/27/2013EP2573895A1 Method for operating a wind farm, wind farm controller and wind farm
03/27/2013EP2573894A2 Method and systems for operating a power generation and delivery system
03/27/2013EP2572426A2 Arrangement for generating a control signal for controlling a power output of a power generation system
03/27/2013EP2572425A2 System for recovering renewable energy
03/27/2013EP2572363A1 Inductive power transfer system primary track topologies
03/27/2013EP2159907B1 Electrical filter assembly
03/27/2013CN202841604U Electromagnetic balance energy compensating circuit
03/27/2013CN202841012U Domestic micro-grid power supply system
03/27/2013CN202841003U Novel three-phase photovoltaic grid-connected inverter system structure
03/27/2013CN202840998U Wind driven generator grid-connected inverter
03/27/2013CN202840691U Intelligent power quality monitoring and management system
03/27/2013CN202840682U Intelligent low-voltage power load allocation host
03/27/2013CN202840662U Uninterrupted power supply
03/27/2013CN202840541U High-efficiency multifunctional solar power generating device
03/27/2013CN202840540U Three-phase grid-connected inverter for simulating synchronous generator
03/27/2013CN202840539U Solar anti-interference and anti-reflux unidirectional shielding system
03/27/2013CN202840538U Intelligent distributed type grid-connected photovoltaic system power supply
03/27/2013CN202840537U Photoelectric and wind power generating power supply system having data black box function
03/27/2013CN202840536U Anti-countercurrent linkage interlock system of photovoltaic power station
03/27/2013CN202840535U Double-feed current transformer with reliable low-voltage ride-through capability
03/27/2013CN202840534U Unidirectional alternating current grid-connected power generation system
03/27/2013CN202840533U Flexible direct current closed loop type power distribution network system converter station with bypass direct current buses
03/27/2013CN202840532U Low-pressure three-phase load balancing device
03/27/2013CN202840531U Switching device for capacitor
03/27/2013CN202840530U Electric energy low voltage dynamic reactive power compensation device
03/27/2013CN202840529U Intelligent high-voltage reactive compensation device
03/27/2013CN202840528U Static reactive compensation device
03/27/2013CN202840527U Wind power grid reactive power compensator based on DSP processor and CPLD logic controller
03/27/2013CN202840526U DSP-and-ARM-based reactive power compensation device of wireless GPRS wind power grid
03/27/2013CN202840525U FPGA-and-DSP-based reactive power compensation device of wind power generation network
03/27/2013CN202840524U Low-voltage real-time rapid reactive power compensator
03/27/2013CN202840523U High-voltage reactive on-site compensation circuit
03/27/2013CN202840522U Intelligent modular capacitor cabinet
03/27/2013CN202840521U Microcomputer line protection system with load control
03/27/2013CN202840520U Transformer switching apparatus under low-load state
03/27/2013CN202840519U Dynamic voltage fluctuation compensator for realizing multi-target control
03/27/2013CN202840518U Power supply system capable of improving transmission efficiency of power grid by controlling partial electric energy equality of factory
03/27/2013CN202840517U 10KV FC+ voltage adjusting type reactor harmonic processing device
03/27/2013CN202840516U Photovoltaic microgrid controlling device
03/27/2013CN202840515U Data acquisition equipment of network power system
03/27/2013CN202840514U System realizing voltage and reactive power real-time automatic compensation for transformer station
03/27/2013CN202840509U Reactive compensation discharging device
03/27/2013CN202840464U High-voltage reactive on-site compensation apparatus
03/27/2013CN202840461U Ground protection apparatus and thin film battery power generation apparatus based on the same
03/27/2013CN202840300U Removable high-voltage high-capacity chained STATCOM system container structure
03/27/2013CN202840292U Intelligent power saving incoming line main cabinet
03/27/2013CN103004054A Method For Supplying An Electric Domestic Appliance From A Low Voltage Supply Network And A Domestic Appliance Suitable For Carrying Out Said Method
03/27/2013CN103004050A Method and control arrangement for controlling central capacitors in wind power plants
03/27/2013CN103003897A Inductive power transfer system primary track topologies
03/27/2013CN103003774A Automatic matching of sources to loads
03/27/2013CN103003765A Monitoring control system for electrical power equipment
03/27/2013CN103001550A Self-excitation compensation soft-starting device for high-power cage motor
03/27/2013CN103001523A Zero-voltage switching energy storage bridge-type inverter without additional voltage and modulation method for inverter
03/27/2013CN103001502A Resonance booster for new energy grid connection
03/27/2013CN103001453A Frequency conversion transformer
03/27/2013CN103001308A Ups (uninterrupted power supply) power supply equipment for preventing power disturbance in safety monitoring system
03/27/2013CN103001307A Renewable energy power supply system and renewable energy power supply method
03/27/2013CN103001259A Annealing algorithm based grid-connected type micro-grid optimal dispatching method
03/27/2013CN103001258A Method for uniformly allocating power used for ship power station and management device
03/27/2013CN103001257A Permanent magnet wind driven generator with micro-power consumption
03/27/2013CN103001256A Control method of grid-side converter of permanent magnetic direct drive type wind turbine system during low voltage ride through
03/27/2013CN103001255A Grid-connected photovoltaic power generation system for residential housings
03/27/2013CN103001254A Alternating current and direct current hybrid micro-grid system
03/27/2013CN103001253A Power supply system of photovoltaic inverter suitable for lower voltage ride-through requirement and power supply method thereof
03/27/2013CN103001252A Mine main ventilation fan high-voltage inverter device with energy feedback
03/27/2013CN103001251A Maximum power point tracking (MPPT) method and device of photovoltaic grid-connected inverter
03/27/2013CN103001250A Compound control method of photovoltaic grid-connected inverter
03/27/2013CN103001249A Method for predicting short-term power of wind farm on the basis of BP (back propagation) neural network
03/27/2013CN103001248A Modularity-based megawatt-level photovoltaic power generation simulation system and application thereof
03/27/2013CN103001247A Off-network-type microgrid black-start method
03/27/2013CN103001246A Method for controlling a PWM (pulse width modulation) rectifying type energy feeding device on basis of virtual flux linkage
03/27/2013CN103001245A Inrush current protection for wind turbines and wind farms
03/27/2013CN103001244A Distributed power harvesting systems using DC power sources
03/27/2013CN103001243A Solar grid-connected power generator
03/27/2013CN103001242A HVDC (high voltage direct current controller) and UPFC (unified power flow controller) system based on modularized multi-level converter