Study on Output Fluctuation of Hybrid Wind Power Plant Consisting of Dozens of Wind Generators Connected in Series

Output fluctuations of a series-connected wind power plant consisting of dozens of wind generators are discussed through detailed simulations of the dynamic performances of the wind power plant with respect to wind speed fluctuations. The wind speed data used as input for the simulations are generated based on the von Kármán model, assuming offshore wind conditions. By integrating the output of a large number of wind turbines, the fluctuations in the individual wind power outputs are offset and some output smoothing can be expected, however the fluctuations cannot be completely excluded. The effect of the hybrid system that can actively compensate for this output fluctuation is then shown, as well as the specifications that an external energy source must possess to compensate for the wind power plant output.