Economic Operation Scheduling of Microgrid Integrated with Battery Swapping Station

Battery swapping station (BSS) is an emerging form of energy storage that can be integrated with microgrid (MG) for economical operation of the system. To manage the scheduling between MG and BSSs, this paper proposes an optimal scheduling model for promoting the participation of BSSs in regulating the MG economic operation. The proposed grid-connected MG consists of wind turbine, photovoltaic (PV) modules, and BSSs. After the BSSs are connected to MG, the batteries in the BSSs can offer auxiliary service to grid through the battery to grid (B2G) operation. Battery swap requests, electricity prices, and MG load influence the decision making in operation scheduling of MG and BSSs. Case studies prove the effectiveness of proposed model by minimizing the MG net costs and maximizing the profits of the BSS with B2G technique and charging strategy that reduces daily charging cost.