4.7 Article

A unified configurational optimization framework for battery swapping and charging stations considering electric vehicle uncertainty

期刊

ENERGY
卷 218, 期 -, 页码 -

出版社

PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.energy.2020.119536

关键词

Battery swapping and charging station; Electric vehicle; Retired battery; Second use; Configurational optimization

资金

  1. National Natural Science Foundation of China [51677018, 62003091]
  2. State Grid Corporation of China (SGCC) science and technology project [2020 YF-34]

向作者/读者索取更多资源

This paper proposes a double-stage coordinative decision-making framework for battery swapping and charging stations (BSCSs), using distributed robust optimization for multi-timescale battery inventories to maximize annual income. The framework enhances scheduling flexibility of BSCSs, improves regional load characteristics, and has been tested and verified through extensive simulation and comparison studies.
Used batteries from electric vehicles (EVs) can be utilized as retired battery energy storage systems (RBESSs) at battery swapping and charging stations (BSCSs) to enhance their economic profitability and operational flexibility, by responding to the market incentive mechanism and interacting with EV batteries. In order to maximize the annual income of a BSCS, in this paper, we establish a double-stage coordinative decision-making (DCD) framework for the BSCS configuration, using the distributed robust optimization (DRO) approach for multi-timescale battery inventories. More specifically, in the DRO approach, the probability of each discrete EV battery swapping demand is carefully modeled to address the uncertainty in BSCS operations. The proposed DCD framework is able to enhance the flexibility of BSCS scheduling through systematically and optimally incorporating RBESSs; at the same time, it can also significantly improve regional load characteristics to accommodate the needs of the main electric grid. The effectiveness and superiority of the proposed DCD framework for BSCS is tested and verified through extensive simulation and comparison studies. The proposed integral optimization approach will be able to facilitate safe, reliable and economic operations of the next-generation power grid, whilst enhancing economics and utilization of retired EV batteries. (C) 2020 Elsevier Ltd. All rights reserved.

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