Abstract

The main goal for designing hybrid wind-solar generating microgrid systems is a reliable supply of load, under varying weather conditions, with the minimum cost and maximum reliability. In this chapter, a hybrid wind-solar generation microgrid system with battery energy storage system and hydrogen energy storage is designed for 20 years of operation using a novel multi-objective optimization algorithm to minimize the three objective functions, namely annualized cost of the system, loss of load expected and loss of energy expected. System costs involve investment, replacement, and operation and maintenance costs, and the major components of the system may be subjected to failure. The simulation results based on multi-objective particle swarm optimization for different cases reveal the impact of components outage on reliability and cost of the system. Also, an approximate method for reliability evaluation of the hybrid system is presented which leads to reducing computation time. Simulation results show the effectiveness of the proposed multi-objective algorithm to solve optimal sizing problems in contrast with traditional single-objective methods.

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