A battery centralized scheduling strategy for battery swapping of electric vehicles. (July 2022)

• Record Type: Journal Article
• Authors: Li, Congbo; Wang, Ningbo; Li, Wei; Yi, Qian; Qi, Dongfeng
• Is Part Of: Journal of energy storage. Volume 51(2022)
• Publication Date: 2022-07
• Subjects: Electric vehicles -- Battery swapping scenario -- Charging load -- Battery purchase costs -- Scheduling strategy; Energy storage -- Periodicals; Energy storage -- Research -- Periodicals; 621.3126
• DOI: 10.1016/j.est.2022.104327
• Languages: English
• ISSNs: 2352-152X

Abstract

Abstract: Electric vehicles (EVs) have been substantially favored by consumers in recent years. However, long charging time, high battery purchase costs (BPC), and large charging load limit the development of EVs. The battery swapping scenario could solve the above problems well. This paper presents a battery centralized scheduling strategy (BCSS) in the battery swap scenario, which significantly reduces BPC and battery charging peak load (BCPL). Based on the presented BCSS, an optimization model of BPC considering BCPL is established. Then, the genetic algorithm (GA) is used to drive the optimization process and 1000 private battery swaps EVs are employed to simulate the BCSS in the prescribed battery swapping scenario. The optimization results suggest that the BPC of the BCSS is 4.15 million yuan, and the BCPL is 2418 kW. In the same situation, compared with the equal time interval transportation strategy (ETITS) and the equal number of batteries transportation strategy (ENBTS), the BPC of the BCSS is reduced by 24.7% and 9.5%, respectively. In addition, when the number of transportation increases, the battery purchase cost shows a decreasing trend, while BCPL indicates an increasing trend. Highlights: A novel battery centralized scheduling strategy is proposed. An optimization model of BPC considering BCPL is established. Intelligent optimization algorithm is adopted to drive the optimization process. The novel strategy significantly reduces BPC and BCPL.