Power control and modeling of a solar-ultra capacitor hybrid energy system for stand-alone applications

This paper proposes the integration of photovoltaic (PV) and energy storage systems for sustained power generation. In this proposed system, whenever the PV system cannot completely meet load demands, the super capacitor provides power to meet the remaining load. A power management strategy is designed for the proposed system to manage power flows between PV systems and ultracapacitor(UC). The main works of this paper is to design PV systems with storage strategies and to analyze dynamic model proposed for a PV-UC hybrid power generation system. In this paper, the simulation models for the hybrid energy system are developed using Matlab/Simulink, SimPowerSystems and Matlab/state flow tool. The system performances are verified by carrying out simulation studies using practical load demand profile and real weather data.