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)
06/2012
06/27/2012CN202285329U Active power filter
06/27/2012CN1972055B Wind turbine with over-voltage protection and operation method thereof
06/27/2012CN1941538B System interconnection system
06/27/2012CN102522927A Motor soft start and dynamic reactive power compensation method
06/27/2012CN102522911A Inverting device and solar PV (Photovoltaic) grid-connected system applying same
06/27/2012CN102522910A Mixed SVPWM control method used for three-phase grid-connected inverter
06/27/2012CN102522879A Active damping method of LCL grid-connected inverter system and circuit for realizing active damping method
06/27/2012CN102522828A Low voltage reactive power compensation terminal filed detection system and detection method thereof
06/27/2012CN102522826A Power load control system and method
06/27/2012CN102522802A Automobile energy accumulation substation
06/27/2012CN102522783A Multi-user automatic-negotiation non-synchronization micro-grid scheduling system and method
06/27/2012CN102522782A Solar current converter system and control method thereof
06/27/2012CN102522781A Method for participating area control error (ACE) control by uniformly modeling wind power plant and thermal power plant
06/27/2012CN102522780A Heat and power combined dispatching system and dispatching method of fuel-gas combined circulating machine set
06/27/2012CN102522779A Generator synchronization control system for dynamic simulation experiment
06/27/2012CN102522778A Grid connecting method of three-phase high-power inverter with power-frequency isolation transformer
06/27/2012CN102522777A Wind driven generator set
06/27/2012CN102522776A Method for improving wind power tracking capability on planned output by energy storage system
06/27/2012CN102522775A AGG (automatic gain control) unit performance adjustment online evaluation method based on WAMS (wide area measurement system)
06/27/2012CN102522774A Dual-motor switching control method for wind generating set
06/27/2012CN102522773A Generating set control system used for power system dynamic simulation experiment
06/27/2012CN102522772A Generator bottom layer monitoring system for dynamic simulation experiment of electric power system
06/27/2012CN102522771A Generator top layer monitoring device for dynamic simulation experiment of electric power system
06/27/2012CN102522770A Transformer-less photovoltaic grid connection detection system and detection method
06/27/2012CN102522769A Hybrid excitation wind power generation system with wide wind speed range
06/27/2012CN102522768A Low-voltage ride through control method of dual-feed wind generating set
06/27/2012CN102522767A Schedulable-type photovoltaic energy storage grid-connected power generation system and operating method thereof
06/27/2012CN102522766A Flyback type miniature photovoltaic grid connected inverter with power decoupling circuit and control method thereof
06/27/2012CN102522765A VSC-HVDC (Voltage Source Converter Based High Voltage Direct Current) flow computational method based on automatic differentiation
06/27/2012CN102522764A Hybrid two-end direct-current power transmission system
06/27/2012CN102522763A Control method for stabilizing fluctuation of wind power by energy storage system
06/27/2012CN102522762A Water source heat pump thermoelectric combination dispatching system by utilizing solar energy for power generation and dispatching method thereof
06/27/2012CN102522761A Three-phase UPS (Uninterruptible Power Supply) control system for restraining disequilibrium of output voltage and harmonic wave
06/27/2012CN102522760A Method for switching phase lines of three-phase circuit and capable of preventing inter-phase short-circuit and phase change switch device
06/27/2012CN102522759A Method for distinguishing transient state instability of electric power system in real time based on voltage track after disturbance
06/27/2012CN102522758A Lossless intelligent switching device for high-voltage capacitor bank
06/27/2012CN102522757A Adjustable power capacitor discharge device
06/27/2012CN102522756A Inductive reactive compensation method for power grid for avoiding voltage off-normal risks
06/27/2012CN102522755A Household-type voltage-reduction energy-saving device
06/27/2012CN102522754A Demand control device
06/27/2012CN102522753A Plant-level load optimization distribution test system of thermal power plant and load optimization distribution method thereof
06/27/2012CN102522752A Optimization method for electric distribution network contract structure for improving power supply capacity
06/27/2012CN102522751A Control method for actively suppressing power grid harmonics
06/27/2012CN102522750A Calculating method of user permitted harmonic current emission limits for separating background harmonic
06/27/2012CN102522749A H-bridge cascaded active power filter and control method thereof
06/27/2012CN102522748A On-line analysis and decision calculation method in power system dynamic process
06/27/2012CN102522747A Calculation method of power supply capability of power distribution system
06/27/2012CN102522746A VSC-HVDC AC/DC optimal power flow method based on primal-dual interior point algorithm
06/27/2012CN102522745A Voltage-gradient-based steepest voltage collapse margin calculation method
06/27/2012CN102522744A Interconnected grid loss allocation method
06/27/2012CN102522743A Method for defending false-data injection attack in direct-current state estimation of electrical power system
06/27/2012CN102522742A Estimation method of external network Thevenin equivalent parameters based on single point measurement information
06/27/2012CN102521381A Statistical evaluation method for power factor of distribution network circuit
06/27/2012CN102520675A Gas-steam combined cycle and solar power generation combined heating system and scheduling method thereof
06/27/2012CN102520269A Data collecting and analyzing device for energy storage system and collecting and analyzing method thereof
06/27/2012CN102518560A Method for regulating active power of wind power field
06/27/2012CN102518545A Pontoon and water flow power generation combined power station
06/27/2012CN101924368B Active power filter device and control method thereof
06/27/2012CN101867196B Method for uniformly controlling distribution type grid-connected power generation and active power filter
06/27/2012CN101864755B Small-sized water turbine power station
06/27/2012CN101841164B Grid-connected system
06/27/2012CN101834447B Method for suppressing sub-synchronous oscillation based on thyristor controlled reactor
06/27/2012CN101834446B Sub-synchronous oscillation suppression method based on controlled series compensation
06/27/2012CN101826821B Electric energy control method of optical network hybrid power supply uninterruptable inverter
06/27/2012CN101820230B High-frequency isolation type grid-connected inverter
06/27/2012CN101820170B Device and method for cutting off short-circuit current
06/27/2012CN101814740B External network equivalence method for electric power system applicable to subsynchronous resonance
06/27/2012CN101800429B Method for acquiring indexes of control capacity of regional dispatching side in real time in provincial-regional coordinated voltage control
06/27/2012CN101789603B Method and circuit for alternating-current dynamic active power factor compensation
06/27/2012CN101728829B Electric network active and reactive comprehensive security control system
06/27/2012CN101692398B High-voltage booster transformer
06/27/2012CN101627515B Demand control system, demand controller, demand program, and demand control method
06/27/2012CN101621205B Grid-combination operation method of photovoltaic grid-combination inverter containing transformer at AC side
06/27/2012CN101614187B Novel wind power station
06/27/2012CN101512866B Micro-grid system construction method
06/27/2012CN101461116B Power control of a wind farm and method therefor
06/27/2012CN101447675B Method for mitigating sub-synchronous resonance
06/26/2012US8207637 System and apparatus for interconnecting an array of power generating assemblies
06/26/2012US8207630 Photovoltaic ladder inverter
06/26/2012US8207629 Transformer
06/26/2012US8207627 Adaptive power strip
06/26/2012US8205466 Indoor and outdoor units of an air conditioning system connected via two wiring configurations
06/21/2012WO2012082430A2 Methods, systems, and software for controlling a power converter during low (zero)-voltage ride-through conditions
06/21/2012WO2012082173A1 Systems and methods for predicting customer compliance with demand response requests
06/21/2012WO2012081750A1 Power control apparatus and power control method
06/21/2012WO2012081575A1 Electric power control device and electric power control system using same
06/21/2012WO2012081412A1 Power conversion device, control device for power conversion device, and control method for power conversion device
06/21/2012WO2012081312A1 Power supply method
06/21/2012WO2012081174A1 Adjustment apparatus for independent power-supply system, and method of adjusting independent power-supply system
06/21/2012WO2012079742A1 Method for disconnecting a photovoltaic assembly and photovoltaic assembly
06/21/2012WO2012079729A2 Monitoring inverters in a photovoltaic system
06/21/2012WO2012079500A1 Method for calculating electrified railway harmonic and negative sequence current
06/21/2012WO2012079363A1 Intelligent power control unit for low voltage ride through and its application
06/21/2012WO2012038059A3 Conditioning of a solar cell
06/21/2012WO2011161692A3 Reactive power management for wind turbine applications
06/21/2012US20120158196 Tactical smart grids
06/21/2012US20120153896 Method and system for co-operative charging of electric vehicles
06/21/2012US20120153726 Energy storage system and method of controlling the same
06/21/2012US20120153722 Method and apparatus for integrated electric power generation, storage and supply distributed and networked at the same time
06/21/2012US20120153618 Energy Systems, Energy Devices, Energy Utilization Methods, and Energy Transfer Methods
1 ... 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 ... 387