Super capacitor output power is shown in figure10. The proper selection of wind farm output power reference is still a problem for smoothing.
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As the fastest growing renewable energy power generation technology wind power has broad application prospects.
Application of energy capacitor system to wind power generation. In this paper it is reported that energy capacitor system ecs which combines power electronic devices and electric double layer capacitor can significantly decrease voltage and power fluctuations of grid connected fixed speed wind generator. Application of energy capacitor system to wind power generation hasan. Department of eee kitami institute of technology 165 koencho kitami hokkaido 0908507 japan.
Randomness intermittence and fluctuation are features of new energy which includes wind energy and the prediction of wind farm output power is of great significance to the operation of power. However wind energy is a randomly varying energy source. Tamura junji 2008 07 01 000000 in this paper it is reported that energy capacitor system ecs which combines power electronic devices and electric doublelayer capacitor can significantly decrease voltage and power fluctuations of gridconnected fixedspeed wind generator.
And the average power of this is 09 pu. Wind speed changes can cause fluctuations in the output power of wind turbines which can affect the power quality of the grid. Here oscillations are made smoothen and average power and input power are made equal.
In this paper it is reported that energy capacitor system ecs which combines power electronic devices and electric double layer capacitor can significantly decrease voltage and power fluctuations of grid connected fixed speed wind generator. Typical specifications for this device in wind turbines include a high energy pulse capability of up to 4 mj resistance of 10 to 100 mw a power rating from 1 to 20 mw and maximum current rating in the range of 10 to 20 ka for the typical fault ride through periods of 200 ms. Output power of the wind turbine system is shown in figure9.
Application of energy capacitor system to wind power generation.
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