A Fast MPPT Control Technique Using PID Controller in a Photovoltaic System

Abstract

Enhancing the performance of photovoltaic (PV) systems under varying conditions becomes of high interest. In this context, this paper presents a rapid Maximum Power Point Tracking (MPPT) technique that helps to reduce significantly the response time of the system thanks to the use of a PID controller. In order to design the controller, a linearized model of the PV system is required. This can be achieved by replacing, in the first place, the PV panel with its linear equivalent circuit, and then averaging the PV system model over one switching cycle. The obtained results witness the effectiveness of the proposed technique in improving the PV system performance.