论文:2017,Vol:35,Issue(4):704-710
引用本文:
梁波, 齐江江, 李玉忍, 王鹏. 锂电池组均衡充放电控制策略研究[J]. 西北工业大学学报
Liang Bo, Qi Jiangjiang, Li Yuren, Wang Peng. Study on Control Strategy of Charge and Discharge for Lithium Battery Series[J]. Northwestern polytechnical university

锂电池组均衡充放电控制策略研究
梁波1, 齐江江2, 李玉忍1, 王鹏1
1. 西北工业大学 自动化学院, 陕西 西安 710072;
2. 中国人民解放军驻西安飞机工业公司军事代表室, 陕西 西安 710089
摘要:
以电动汽车串联使用的锂电池组为研究对象,分析了电池组充放电过程中不一致性问题,综合电池模型原理和适用场合,选用二阶Thevenin等效电路模型搭建电池模型,运用曲线拟合的方法对电池模型参数辨识。设计了基于DC-DC变换器的外电压均衡控制策略原理,搭建仿真电路验证均衡电路性能。仿真结果表明,基于DC-DC变换器的外电压均衡控制策略可以很好地改善串联电池组充电和放电过程中的不一致问题。
关键词:    Thevenin模型    DC/DC变换器    电池组均衡    MATLAB   
Study on Control Strategy of Charge and Discharge for Lithium Battery Series
Liang Bo1, Qi Jiangjiang2, Li Yuren1, Wang Peng1
1. School of Automation, Northwestern Polytechnical University, Xi'an 710072, China;
2. PLA Military Representative Office in Xi'an Aircraft Industry Corporation, Xi'an 710089, China
Abstract:
This paper use series lithium battery series of the electric vehicles as research object. Analyzed the consistency charging and discharging process of the battery. The battery model is using second-order Thevenin circuit based on the principle of battery model and application of occasions. Carried on the parameters identification using the curve fitting method, completed the battery model verification. After that, the external voltage equalization based on the DC-DC converter is used to build the simulation circuit to verify the performance of the equalization circuit. The simulation results show that the control strategy can improve the series battery charging and discharging process.
Key words:    Thevenin model    DC-DC converter    battery series equalization    MATLAB   
收稿日期: 2017-02-23     修回日期:
DOI:
基金项目: 国家自然科学基金(11672240)和陕西省科学技术研究与发展计划(2016KE090042)资助
通讯作者:     Email:
作者简介: 梁波(1984—),西北工业大学讲师,主要从事电源变换技术、新能源发电及其应用研究。
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