Design of Wake Control Strategy for Offshore Wind Farm

Abstract

With the vigorous development of China's economy and so on, people in all walks of life need more and more electric energy. There is an urgent need to provide electricity through renewable energy. For wind energy, offshore wind energy resources are particularly abundant, and its reserves to be developed are very large, but the influence of wake effect on wind power generation is still a problem that cannot be ignored. Firstly, this paper introduces Homs Rev wind farm. Secondly, the influences of four factors, namely the wind inflow direction, the thrust coefficient, the pitch angle of each unit in the wind field and the relationship between the thrust coefficient, the induction factor and the utilization of wind energy, on the wake flow of the downstream fan are analyzed and discussed in detail. Furthermore, for wake effect, the optimal control strategy is obtained by studying the superposition algorithm of wake, particle swarm optimization control and the relationship between thrust coefficient, induction factor and output power. Finally, Homs Rev wind farm is taken as the research object of this paper, and Matlab is used to carry out coding simulation: other values are unchanged, wind speed is taken as a variable, and different assumed wind speeds are input, then the actual wind speed corresponding to each wind turbine can be obtained. The most important thing of this coding is based on the optimization of particle swarm optimization, which reduces the induction factor. The purpose is to increase the output power and further increase the total power generation.