Solar energy tracking based on extremum seeking control method

As a renewable energy source (RES), Photovoltaic (PV) power system is known for its low cost, zero pollution, easy installation, and appropriate for distributed power generation (DPG). In order to maximize the power efficiency for PV system. it is crucial to find a fast and reliable approach to search the maximum power point (MPP). This paper highlights the key principle of extremum seeking control (ESC) algorithm and also three well-tuned conventional maximum power tracking techniques are addressed for comparison purposes. A two stage standalone PV connected system is utilized to evaluate the performance and the system dynamics by using ESC. Addressing on the proposed model, four maximum power point tracking (MPPT) techniques are compared.