Sizing optimization of PV-FC-Battery system with hybrid PSO-EO algorithm

One of the most important issue in designing of renewable hybrid energy systems is to size the system components optimally to meet load requirement with minimum annualized cost of system and maximum reliability of power supply. This paper presents comparison of two approaches for calculating optimal size of hybrid energy system components with minimum annualized cost considering reliability constraint. In this paper an extremal optimization based particle swarm optimization algorithm has been proposed to determine optimal size of system components. To demonstrate the validity of proposed approach and to evaluate relative merit of this approach, a comparative study has been done with simple particle swarm optimization algorithm considering identical system configuration. The simulation results show that the optimal system components can deliver energy in a stand -alone installation with minimum system cost and maximum reliability.