基于 AMESim 的动力电池组并联回路水冷系统研究

针对现有风冷系统和串联回路水冷系统在降低电池组最高温度和减小单体电池间最大温差不足的问题, 提出了一种并联回路形式的水冷系统。 在分析锂离子电池生热机理的基础上, 建立电池的温度模型, 并在 AMESim(Advanced Modeling Environment for Performing Simulation)软件中搭建并联回路的电池组水冷系统, 同时 通过仿真实验与串联回路水冷系统进行散热性能对比。 其结果表明, 联回路形式的水冷系统散热效果更好, 在 维持电池组最高温度的基础上, 有效减小了单体电池间的温差, 并为进一步研究并联回路水冷系统的控制算法 打下基础。

Study on Water Cooling System with Parallel Loop ofPower Battery Pack Based on AMESim

In order to meet the requirements of electric vehicle battery th ermal management system which is purposed to reduce the maximum temperature of t he battery pack and the temperature difference between single cells, to overcome t he shortcomings of existing air cooling system and series loop water cooling sys tem, to reduce the maximum temperature and the temperature difference between single cells, a water cooling system with parallel loop is proposed.Based on the analysi s of the heat generation mechanism of lithium ion battery, the temperature model of the battery was established, and the battery water cooling system with paral lel loop was built in AMESim (Advanced Modeling Environment for Performing Simulation) software.The heat dissipation performance was comp ared with the series loop water cooling system via simulation experiments.Good results have been achieved, the temperature difference is effectively reduced on the basis of maintaining the maximum temperature of the battery pack, which laid the foundation for the further study of the control algorithm for the parallel loop water cooling system.