考虑用户充电规律的电动汽车多阶段恒流充电方法研究
作者:
作者单位:

(1.国网湖南省电力有限公司供电服务中心(计量中心),湖南 长沙 410000;2.智能电气量测与应用技术湖南省重点实验室,湖南 长沙 410004;)

通讯作者:

余敏琪(1994—),女,硕士研究生,工程师,主要从事用电采集系统通信技术研究等方面的研究;E?mail:806427432@qq.com

中图分类号:

TM912

基金项目:

国网湖南省电力有限公司供电服务中心(计量中心)开放性课题(165100000606)


Multi‑stage constant‑current charging method of electric vehicle considering user charging law
Author:
Affiliation:

(1. Power Supply Service Center (Metrology Center), State Grid Hunan Electric Power Co., Ltd., Changsha 410000, China; 2. Hunan Province Key Laboratory of Intelligent Electrical Measurement and Application Technology, Changsha 410004, China)

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    摘要:

    电动汽车锂离子电池的快速充电方法在考虑传统的均衡电池安全、充电时间和寿命时,应考虑用户充电规律对其的影响。该文提出一种考虑用户充电规律的电动汽车多阶段、恒流充电方法。先通过采用蒙特卡罗方法模拟有关用户充电行为,确定用户最优意愿充电荷电状态区间;再通过建立充电时间与能量损耗的动态方程;最后,采用优化粒子群算法求取最优充电电流的充电方式。研究结果表明:该优化充电方法在提高充电速度的同时,在一定程度上降低了电池的最高升温,其充电损耗比传统的恒流恒压充电方法更低。该方法通过降低充电过程中的能量损耗,间接提高了锂离子电池的使用寿命。

    Abstract:

    The rapid charging method of lithium-ion batteries for electric vehicles should also consider the influence of users’ behavior habits when considering the traditional goals such as balancing the safety, life, and charging time of the batteries. In this paper, a multi-stage constant-current charging method considering users’ behavior habits is proposed. First, Monte Carlo method is used to simulate users’ charging behaviors, and thus the state of charge (SOC) range of users’ optimal willingness to achieve is determined. Then, the dynamic equations of charging time and energy loss are established. Finally, the charging mode to obtain optimal charging current is determined by the particle swarm optimization algorithm. The results show that the proposed optimal charging strategy can reduce the maximum temperature rise of the batteries to a certain extent while improving the charging speed. It also significantly reduces charge loss, compared with the traditional constant-current and constant-voltage (CC-CV) charging method. The service life of lithium-ion batteries is indirectly improved by reducing energy loss during the charging process.

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引用本文

杨 帅,刘小平,余敏琪,等.考虑用户充电规律的电动汽车多阶段恒流充电方法研究[J].电力科学与技术学报,2025,40(2):235-242.
YANG Shuai, LIU Xiaoping, YU Minqi, et al. Multi‑stage constant‑current charging method of electric vehicle considering user charging law[J]. Journal of Electric Power Science and Technology,2025,40(2):235-242.

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  • 在线发布日期: 2025-06-06
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