Development of Optimum Controller based on MPPT for Photovoltaic System during Shading Condition

The output powers of photovoltaic (PV) system are crucially depending of the two variable factors, which are the cell temperatures and solar irradiances. A method to utilize effectively the PV is known as a maximum power point tracking (MPPT) method. This method is extract the maximum available power from PV module by making them operates at the most efficient output. This paper presents two controllers to control the MPPT which are conventional proportional integral derivative (PID) and Fuzzy Logic. In particular, the performances of the controllers are analyzed in these four conditions with are constant irradiation and temperature, constant irradiation and variable temperature, constant temperature and variable irradiation and variable temperature and irradiation. The proposed system is simulated by using MATLAB-SIMULINK. According to the results, PID controller has shown better performance during partially shaded conditions. (C) 2013 The Authors. Published by Elsevier Ltd.