Dual Search Maximum Power Point (DSMPP) Algorithm Based on Mathematical Analysis under Shaded Conditions

摘要: Photovoltaic (PV) systems represent a clean, renewable source of energy that has non-linear current-voltage (I-V) and power-voltage (P-V) characteristics. To increase the efficiency, PV system must operate at maximum power point (MPP) to produce available power. Under uniform conditions, there is only single MPP in P-V curve system; however, determining more complicated under partially shaded conditions (PSCs) because multiple peak points exist. In recent years, various studies have been performed obtain highest PSCs, which referred as global (GMPP). this paper, novel method based on mathematical analysis reduces search zone simultaneously identifies possible MPPs specified proposed; proposed called dual (DSMPP) algorithm. evaluate effectiveness method, simulation hardware implementations are carried out. The results show time GMPP significantly reduced detected minimum amount with high accuracy oscillation produced.