An improved simulated annealing maximum power point tracking technique for PV array under partial shading conditions

This paper presents an improved Simulated Annealing (SA) based Maximum Power Point Tracking (MPPT) technique designed for photovoltaic (PV) systems under partial shading conditions (PSC). Compared with existing SA MPPT algorithms, the proposed method performs faster convergence speed, higher tracking accuracy and continuously tracking of the global Maximum Power Point (GMPP) under climate changes. The new SA MPPT principle is fully explained, discussed and verified by simulation.