Abstract

Second use of electric vehicle (EV) batteries used in the battery swapping station (BSS) is an effective way to improve economic benefits of the life span of the BSS and EV batteries. In this paper, we propose the physical structure of BSS for installing the energy storage system (ESS) of second use of EV batteries, and then establish the operation model of a BSS according to the operation mechanism between the internal components. In order to maximize the annual net present value of a BSS, the economic benefit model is established under the full consideration of the time of use (ToU) electricity price mechanism and the EV batteries charging demand. Finally, the proposed method is simulated, and the results show that according to the configuration results and operation strategies obtained by this paper, the economic benefits of BSS can be improved, and meanwhile, the volatility of the original load can be reduced.

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