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Detailed study, multi-objective optimization, and design of an AC-DC smart microgrid with hybrid renewable energy resources

Mohammad Ghiasi

Energy, 2019, vol. 169, issue C, 496-507

Abstract: Hybrid renewable system is a particular type of energy systems which can be used as Distributed Generation (DG) resources to reduce network losses and increase its efficiency. Overall, at design phase, there are two major constraints: first, availability, and second, the cost of equipment. In this paper, considering these constraints and using DGs as Renewable Energy Sources (RES) including wind turbines and photovoltaics, an intelligent method based on multi-objective particle swarm optimization is utilized. Besides, battery bank has been used as a backup unit and energy storage of the hybrid system to reduce the volatility of RESs. The purposes of this paper are: to provide a comprehensive analysis on new structures of AC and DC systems, and then, to determine the capacity and optimal design with hybrid RESs in a smart microgrid to increase the availability and reduce network costs. In order to demonstrate the possibility of proposed approach, an optimized method is designed and implemented in two scenarios (Basic, and Maximum Renewable). Effectiveness of the proposed approach is applied over a real study case. By comparing the proposed method with multi-objective genetic algorithm, simulation results show that the proposed method has effective performance in reducing costs and improving availability.

Keywords: AC-DC systems; Distributed generation; Microgrids; Renewable energy resources (search for similar items in EconPapers)
Date: 2019
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Handle: RePEc:eee:energy:v:169:y:2019:i:c:p:496-507