Calculating the Voltage Fluctuation based on Wind Velocity-wind Power Fitting and Interval Power Flow for Wind Farm
Wu Danyue1, Li Zhaoxiang1, 2, Shao Zhenguo2
1. Electric Power Research Institute of Fujian Electric Power Co., Ltd, Fuzhou 350007; 2. College of Electrical Engineering and Automation, Fuzhou University, Fuzhou 350016
Abstract：The power fluctuation of wind generator would cause voltage fluctuation on the power grid. Voltage fluctuation prediction based on historical measurements of wind speed is useful for the optimal choice of grid-connected node or governance method. This paper introduces an assessment method based on interval arithmetic. According to historical measurements of wind speed, this method could estimate the voltage fluctuation caused by the wind farm. Study the maximum power point tracking method and the active power and reactive power decoupling control, then build the simulation model of DFIG to get the relation function between wind speed and output power of DFIG with fitting method. With the predicted interval value of wind turbine output, figure out the voltage fluctuation by solving the interval iteration equations which are based on Gauss-Seidel algorithm. Verify the validity and feasibility of this method by Monte-Carlo probabilistic load flow.
吴丹岳, 李兆祥, 邵振国. 基于风速-功率拟合与区间潮流的风电场电压波动预测[J]. 电气技术, 2016, 17(7): 7-12.
Wu Danyue, Li Zhaoxiang, Shao Zhenguo. Calculating the Voltage Fluctuation based on Wind Velocity-wind Power Fitting and Interval Power Flow for Wind Farm. Electrical Engineering, 2016, 17(7): 7-12.
2016, Vol. 17 
