Modeling and simulation of maximum wind energy capture by segmented slope duty-cycle perturbation method

Abstract

Due to the change of external wind speed, the power speed output characteristic curve will also change. In order to improve the tracking speed of the maximum power point and reduce the oscillation problem near the maximum power point in the maximum wind energy capture process of direct drive permanent magnet synchronous wind power generation system, this thesis proposes a MPPT algorithm based on piecewise slope duty-cycle disturbance method Methods by judging the critical value range of the slope of power to speed to select the appropriate duty cycle disturbance value, the maximum power point can be achieved quickly and stably. Finally, the effectiveness and superiority of the segmented duty-cycle disturbance method are verified by building MATLAB/Simulink model.