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The productive use of renewable energy and growth of electric vehicles (EVs) offer opportunities for sustainable development. Renewable energy systems (RESs) are dispatched by the designed rational energy management strategy (EMS). However, the uncertainties of renewable energy generation and the risk of peak-on-peak like uncontrolled charging loads burden EMS scheduling. This article proposes a two-stage EMS for grid-connected RES considering charging of EVs. The presented microgrid includes photovoltaic system, energy storage battery, base loads, and EVs, and microgrid control centers make decisions. Monte Carlo method is used to describe EVs charging. The Stage 1 of the EMS is an EV sequential charging strategy, taking user convenience, grid load fluctuation, and user charging cost as the objective function, whose weights are assigned by the dynamic weighting method and solved by the improved particle swarm algorithm. Stage 2 is a multi-objective EMS that considers total system operating cost and battery lifetime, which is addressed by the improved grey wolf algorithm combined with the Stage 1 solution. Compared to the normal EMS, in the case study, the proposed strategy could improve the battery lifetime by 72.7 %, and decrease the total system operating cost by 4.8 %. The proposed EMS effectively meets different application scenarios and enhances system economic.
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JOURNAL OF ENERGY STORAGE
ISSN: 2352-152X
Year: 2025
Volume: 136
8 . 9 0 0
JCR@2023
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ESI Highly Cited Papers on the List: 0 Unfold All
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30 Days PV: 0