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Operation Strategy for Electric Vehicle Battery Swap Station Cluster Participating in Frequency Regulation Service
Copyright: © 2021 by the authors. Idle batteries in the battery swap stations (BSSs) of electric vehicles (EVs) can be used as regulated power sources. Considering the battery swap service and the frequency regulation (FR) service, this paper establishes a model of BSS cluster participating in the FR service and formulates a two-stage operation strategy. The day-ahead strategy arranges the battery charging plan and FR plan with the goal of the optimal operating economy on the next day. The intra-day strategy aims at maximizing the satisfaction degree of battery swap, minimizing the loss of planned revenue and ensuring the coordination of battery swap service and FR service by regulating the charging and discharging status of each battery in real-time. The simulation case shows that, under the prerequisite of gratifying the battery swap demand, the strategy improves the operating economy by making full use of idle batteries which bear a part in the FR service.Research Project of the Digital Grid Research Institute, China, Southern Power Grid (Grant YTYZW20010); National High Technology Research and Development Program of China (863 Program) (Grant 2014AA052001)