Maximum Power Point Tracking Technology and Simulation Analysis for Wind Power Generation

Maximum power point tracking(MPPT) has been used in the actual variable speed constant frequency wind power system.To further investigate this technology,the current maximum power point tracking technology was summarized and the control methods could be divided into three categories: 1) the known method;2) the method of black-box;3) the method of mixed control.Baesd on the 35 kW squirrel cage induction wind power generation system which includes back-to-back converter with a gear box,in Matlab/Simulink simulation environment,according to the known method,the method of black-box,the method of mixed control,each typical representative type of method was selected to simulate and validate.The simulation results show that,according to the different application of the power situlation,the rapidity of tracking maximum power is different,and various types of methods should be selected from the practical point of view and the characteristic of the wind turbine.