Operation Method of PV–Battery Hybrid Systems for Peak Shaving and Estimation of PV Generation

Photovoltaic (PV)–battery hybrid systems, which are composed of PV arrays, batteries, and bidirectional inverters, can level the loads traditional utility grids. Their objective is to supply predetermined active reactive power grid. This paper presents an operation method for PV–battery systems by estimating generation. Using installation information, maximum generation on a clear day was predicted compared with historical data. The estimated using data from 2007 2010. aims reduce peak load system next day. With given weather information pattern day, charge discharge set points battery be determined considering initial SoC (State Charge) capacity battery. To compensate estimation error output, operational margin considered. maximize efficiency fully utilizing effectiveness validated through simulation studies. It confirmed that could reduced 30% proposed algorithm.