A power management strategy for hybrid photovoltaic diesel system with battery storage

This paper proposes an DC-linked hybrid diesel/photovoltaic (PV)/battery storage system for stand-alone applications. PV is the primary power sources of the system, a diesel engine is used as a backup and a battery as storage system. An overall power management strategy is designed for the proposed system to manage power flows among the different energy sources and the storage unit in the system. A configurations of Diesel-engine generator and photovoltaic hybrid systems is evaluated based on technical constraints. A sizing of different component is established. A simulation model for the hybrid energy system has been developed using MATLAB/Simulink. The system performance under different scenarios has been verified by carrying out simulation studies using a load demand profile.