Energy Management Strategy For Grid Connected DC Hybrid Micro Grid Using Particle Swarm Optimization Technique

Abstract

Energy management for micro-grids is a vital issue for the control system. Proper control system should fulfill load demands and ensure system stability with the minimum cost. This paper presents an energy management strategy (EMS) for grid connected DC hybrid micro-grid with cost minimization while considering the dynamics of renewable sources. Modified particle swarm optimization (MPSO) is used to solve the energy management optimization problem. Genetic algorithm (GA) is also used to compare the MPSO result. Hierarchical control is used to combine MPSO with the energy management strategy to enhance MPSO performance and achieve optimum efficiency.