Study on maximum power point tracking for photovoltaic power generation system

For the establishment of a solar energy cell power generation system model uses an additional component Simulink of the MATLAB to do simulation research, Simulation model can accurately reflect the output characteristics of photovoltaic cells, and the method is simple and parameters easily adjustment. In the DC/DC circuit, we apply the maximum power point tracking (MPPT) algorithm. Results show that the response speed and control accuracy are met requirements. Based on principles to analyze of various tracking methods, a key research in changing duty ratio can find the precise maximum power point.