锂离子电池在风电场储能系统中放电性能和容量变化研究  

Research on discharge performance and capacity changes of lithium-ion batteries in wind farm energy storage systems

作　　者：高阳[1] 葛天翔 杨斌[3] 刘颖明[3] Gao Yang;Ge Tianxiang;Yang Bin;Liu Yingming(Shenyang Engineering College,Shenyang 110136,China;Xian Jiaotong Liverpool University,Suzhou 215028,China;Shenyang University of Technology,Shenyang 110870,China)

机构地区：[1]沈阳工程学院,辽宁沈阳110136 [2]西交利物浦大学,江苏苏州215028 [3]沈阳工业大学,辽宁沈阳110870

出　　处：《可再生能源》2025年第4期552-560,共9页Renewable Energy Resources

基　　金：辽宁省揭榜挂帅科技攻关专项(2021JH1/10400009)。

摘　　要：文章针对锂离子电池在风电场储能系统中的放电性能和容量变化进行了研究。通过设计合理的实验方案,采用先进的测试技术,系统地探讨了锂离子电池在不同放电倍率下的性能表现及容量和温度变化。在自然散热状态下,电池中心的最高温度为69.87℃,加入液冷散热方式后,电池中心的最高温度为63.25℃,温度下降了9.475%,所需散热时间从45 min减少到25 min,相应地,温度从48.87℃降低到35.00℃。与自然散热相比,液冷散热在高倍率放电过程中具有显著的效果,不仅降低了温升而且缩短了降低温度所需要的时间。研究结果表明,高倍率放电下,锂离子电池在风电场储能系统应用中表现出良好的放电性能,但随着倍率增大放出容量会有一定程度的减少。文章研究结果不仅为锂离子电池在风电场储能系统中的应用提供了理论支持,也为优化其使用和散热技术提供了实践指导。This paper studies the discharge performance and capacity changes of lithium-ion batteries in wind farm energy storage systems.Through a well-designed experimental scheme and advanced testing technology,the performance and capacity and temperature changes of lithium-ion bateries at different discharge rates are systematically discussed.In the state of natural heat dissipation,the maximum temperature of the battery center is 69.87℃.After adding liquid cooling heat dissipation method,the maximum temperature of the battery center is 63.25℃,the temperature drops by 9.475%,the required heat dissipation time is reduced from 45 min to 25 min,and correspondingly,the temperature is reduced from 48.87℃ to 35.0℃.Compared with natural heat dissipation,liquid cooling heat dissipation has a significant effect in the process of high-rate discharge,which not only reduces the temperature rise but also shortens the time required to reduce the temperature.The research results show that lithium-ion batteries exhibit good discharge performance in wind farm energy storage system applications under high discharge rate,but the discharge capacity will decrease to a certain extent as the rate increases.The research results of this paper not only provide theoretical support for the application of lithium-ion batteries in wind farm energy storage systems,but also provide practical guidance for optimizing their use and heat dissipation technology.

关 键 词：钛酸锂电池 高倍率放电 风电场储能系统 环境温度 容量变化 

分 类 号：TK81[动力工程及工程热物理—流体机械及工程] TM912[电气工程—电力电子与电力传动]