中国电力 ›› 2020, Vol. 53 ›› Issue (5): 128-134.DOI: 10.11930/j.issn.1004-9649.202001028

• 新能源 • 上一篇    下一篇

高寒高海拔地区微网储能锂电池系统优化设计

赵斌1,2, 呼如威2, 蒋东方3, 董晓冬1, 罗伟林4, 刘辉4   

  1. 1. 西藏自治区能源研究示范中心,西藏 拉萨 850000;
    2. 华北理工大学,河北 唐山 063210;
    3. 国网能源研究院有限公司,北京 102209;
    4. 上海动力储能电池系统工程技术有限公司,上海 201100
  • 收稿日期:2020-01-06 修回日期:2020-02-16 发布日期:2020-05-05
  • 作者简介:赵斌(1968-),男,博士,教授,博士生导师,从事新能源科学技术与应用研究,E-mail:zhaobin19680507@163.com;刘辉(1978-),男,通信作者,博士,高级工程师,从事储能电池系统设计和研发,E-mail:liuhui@spes.net.cn
  • 基金资助:
    西藏自治区重大科技专项资助项目(高寒高海拔地区耦合制氧技术的多能互补能源系统研发及示范,XZ201801-GA03)

Optimized Design of Lithium Battery System for Microgrid Energy Storage in Severely Cold and High Elevation Regions

ZHAO Bin1,2, HU Ruwei2, JIANG Dongfang3, DONG Xiaodong1, LUO Weilin4, LIU Hui4   

  1. 1. Energy Research and Demonstration Center of Tibet, Lasa 850000, China;
    2. North China University of Science and Technology, Tangshan 063210, China;
    3. State Grid Energy Research Institute Co., Ltd., Beijing 102209, China;
    4. Shanghai Power & Energy Storage Battery System Engineering Technology Co., Ltd., Shanghai 201100, China
  • Received:2020-01-06 Revised:2020-02-16 Published:2020-05-05
  • Supported by:
    This work is supported by Tibet's Major Science and Technology Project (Invention and Demonstration of a Multi-energy Complementary Energy System Coupled with Oxygen Production Technology in High and Cold Regions, No.XZ201801-GA03)

摘要: 通过对高寒高海拔地区微电网储能选用的磷酸铁锂电池进行性能测试,分析了环境温度对电池充放电性能、循环寿命、系统容量及安全性能等重要参数的影响。结果表明:磷酸铁锂电池具有循环寿命长、对高倍率充放电耐受性强,具有耐用性与安全系数高等优点;环境温度对电池性能影响显著,低温下放电容量明显下降,高倍率充放电会缩短电池循环寿命。此外,结合高寒高海拔地区的气候特征对锂电池储能系统进行针对性的优化设计,并且在恶劣环境下对系统的可靠性进行了实验验证。研究结果可对磷酸铁锂电池在高寒高海拔地区的应用提供技术支撑。

关键词: 高寒高海拔, 磷酸铁锂电池, 性能测试, 优化设计

Abstract: Performance of lithium iron phosphate batteries was assessed, which were chosen for energy storage in the microgrid system in severely cold and high elevation regions. The influence of ambient temperature on those important parameters such as charge-discharge performance, cycle life, system capacity and safety performance was analyzed. The results showed that lithium iron phosphate batteries had long cycle life with excellent tolerability, especially at high charge-discharge rate. Meanwhile, such type of batteries also exhibited high durability and safety index. On the other hand, ambient temperatures had significant effect on the battery performance. For instance, the discharge capacity declined sharply at low temperature (-30 ℃), with only 89.89% relative capacity (compared to 25 ℃). Also the battery cycle life was shortened at high charge-discharge rate. Moreover, based on the climate conditions in the severely cold and high elevation regions, the lithium battery energy storage system was optimized respectively, and the reliability of system was experimentally verified in harsh environments. From the research results certain technical support can be provided for the application of lithium iron phosphate batteries in the severely cold and high elevation regions.

Key words: alpine and high elevation, lithium iron phosphate battery, performance testing, optimized design