A Comparative study of Stand-alone Photo-Voltaic System with Battery storage system and Battery Supercapacitor storage system

Energy storage is a vital part for a pv system. The comparison of Photovoltaic energy storage system between combination of battery-supercapacitor (HESS) and only battery is described in this paper. In this paper, there is a study of standalone PhotoVoltaic systems with Passive type BSHESS and semi active BSHESS are presented. For better understanding, the reduced battery stress and extended battery lifespan Rule Based Controller (RBC) and Filtration Based Controller (FBC) are used. From simulation result it is concluded that in case of semi active BS HESS, battery lifespan increases with decreasing battery peak current and improving the average State of Charge (SOC) comparing with alone battery storage.