Equivalent Modeling of Large-Scale Photovoltaic Power Plant

This paper introduces the single unit model of photovoltaic (PV) system as the basic component for the modeling of the large-scale PV power plant. Based on the single unit model, the equivalent models of the large-scale PV power plant are presented in two different situations. As the general situation of the two in which the parameters of the inverter controllers are different, a clustering and equivalent modeling method based on the characteristic distance of parameter sensitivity is proposed. Finally, the simulation cases are provided to verify the effectiveness of the equivalent models.