Control Strategy of BESS in Photovoltaic Station based on Power Forecasting

Abstract

With the improvement of the very short term photovoltaic power forecasting, a new dynamic optimal control strategy for BESS based on the photovoltaic power forecasting is proposed to smooth photovoltaic power fluctuations. The operating rules are proposed based on the forecasted photovoltaic power information to minimize the offset of SOC as well as considering the performance of the energy storage to get the optimal control for the next control step, which result in a progressive control principle. The proposed method is verified by the actual data from photovoltaic station.