A new maximum power point tracking method for PV system

Maximum power point tracking (MPPT) technique is used in photovoltaic (PV) power generation system to assume the maximum power point (MPP) no matter how the PV panel temperature and irradiation conditions change. It plays a decisive role in PV power generation system. Therefore, this paper introduces a modified optimal voltage control (OVC) method coupled with active disturbance rejection control (ADRC) algorithm. The proposed method focuses on parameter optimization corresponding to variable panel temperature and irradiation conditions. The results, comparing with OVC method, show that the proposed method improves power tracking speed and efficiency of energy conversion simultaneously. Finally, through the simulation by MATLAB/SIMULINK platform, we verify the feasibility and effectiveness of the proposed method.