A Coordinated Charging Strategy on Battery Swapping Station in Microgrid Considering Battery to Grid

After the electric vehicle battery swapping station (BSS) is connected to microgrid, the battery in the BSS can provide auxiliary services through the battery to grid(B2G) technology. It is not only able to reduce the configuration capacity of the energy storage system and the construction cost of the microgrid, but also can improve the operating profit of BSS. In this context, this paper proposes a method for full battery to participate in B2G service. Secondly, we propose a coordinated charging strategy for BSS in the microgrid with the goal of minimum daily charging cost. Finally, an example is given to analyze the effectiveness of the proposed B2G method and the coordinated charging strategy.