适用多工况的储能电池液冷系统优化设计及分析  

Optimization design and analysis of liquid cooling system for energy storage battery with multiple working conditions

作　　者：王罗亚 吴超 殷文倩 叶季蕾 吴宇平 刘丽丽 雷茂云 季浩 WANG Luoya;WU Chao;YIN Wenqian;YE Jilei;WUYuping;LIU Lili;LEI Maoyun;JI Hao(School of Energy Science and Engineering,Nanjing Tech University,Nanjing Jiangsu 211816,China;Huaneng Jiangsu Comprehensive Energy Service Co.,Ltd.,Nanjing Jiangsu 210015,China)

机构地区：[1]南京工业大学能源科学与工程学院,江苏南京211816 [2]华能江苏综合能源服务有限公司,江苏南京210015

出　　处：《电源技术》2024年第12期2434-2443,共10页Chinese Journal of Power Sources

基　　金：国家重点研发计划(2021YFB2400205)。

摘　　要：为更好地控制锂离子电池模块在充放电过程中的温度以及提升其温度一致性,利用液冷方式作为冷却手段,分别设计了纵向和横向放置冷却板的液冷结构并对比了两种液冷结构的冷却性能。进一步基于有限元仿真软件,以锂离子电池模块的最高温度和最大温差为目标,仿真分析了恒流工况下冷却液流速、冷却液温度、冷却通道数目以及进水口方向对于液冷系统冷却效果的影响。同时,分析验证基于恒流工况得出的液冷系统优化参数在实际储能调峰调频下对于锂离子电池模块的冷却效果,并在此基础上进一步提出了关于液冷结构变流速的优化策略。In order to enhance temperature control during charging and discharging of lithium-ion battery modules and improve temperature uniformity,this paper employed the liquid cooling as a cooling method.Two liquid cooling structures were designed,with cooling plates placed longitudinally and transversely,to compare their cooling performance.This study simulated and analyzed the impact of coolant flow rate,coolant temperature,number of cooling channels,and inlet direction on the cooling efficiency of the liquid cooling system by using finite element simulation software,which aims at the maximum temperature and maximum temperature difference of lithium-ion battery modules.At the same time,the optimization parameters of the liquid cooling system based on the constant flow condition were analyzed and verified for the cooling effect of the lithium-ion battery module under the actual energy storage peak and frequency regulation conditions.Furthermore,the optimization strategy of variable flow rate of liquid cooling structure was also proposed.

关 键 词：锂电池 液冷 散热结构 参数优化 调峰调频 

分 类 号：TM912[电气工程—电力电子与电力传动]