Optimal Operation of Wind Turbines Based on Support Vector Machine and Differential Evolution Algorithm

Output control of wind turbines is the key item in the operation of wind farm.In view of complicated relations among wind turbine output,wind speed and blade pitch angle,it is hard to establish a versatile and accurate mathematical model.For this reason,a new mode to optimize wind turbine output is proposed: firstly a model for nonlinear fitting between wind turbine output and operational parameters is built;then based on the built model and the variation of wind speed and adopting the high-efficient differential evolution algorithm,the blade pitch angle of wind turbine is optimized fast and dynamically.Using the proposed method,the dynamic relation between wind speed and optimal blade pitch angle can be established.Simulation results of the proposed method show that the output of wind turbine can be effectively uprated,thus the feasibility of the proposed method is verified.