A Novel Maximum Power Point Tracking Method for the Photovoltaic System

A novel maximum power point tracking (MPPT) method for the photovoltaic system is proposed in this paper. The main feature of the proposed MPPT method is that only a current is required to be detected. Therefore, the proposed method has the advantage of simplifying the control circuit compared with the conventional perturbation and observation method where both current and voltage should be detected. A prototype based on the digital signal processor (DSP) controller is developed and tested to verify the performance of the proposed MPPT method. The experimental results show the proposed method has the expected performance.