| 引用本文: | 张娥,徐成,王康丽,蒋凯.电池组分段混合均衡控制策略[J].电力自动化设备,2020,40(3): |
| ZHANG E,XU Cheng,WANG Kangli,JIANG Kai.Segmented hybrid equalization control strategy for battery packs[J].Electric Power Automation Equipment,2020,40(3): |
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| 摘要: |
| 为了解决电池组由于制造工艺和应用环境的差异所引起的不一致性问题，针对具有电压平台宽、在充放电末端电压变化快这类特性的电池体系，提出了一种基于电压和荷电状态(SOC)的分段混合均衡控制策略。应用MATLAB/Simulink仿真平台，搭建基于双向反激式变压器的多绕组结构的主动均衡拓扑结构，并分别在几种不同的电池组运行工况下验证所提分段混合均衡控制策略的有效性。与采用单一均衡变量的均衡控制策略进行比较，仿真结果表明分段混合均衡控制策略在电池组充电完成或放电结束后能够同时保持电池组电压和SOC良好的均衡效果；所提分段混合均衡控制策略能够更有效地提高电池组的一致性。 |
| 关键词: 电池组 不一致性 均衡 拓扑结构 混合控制策略 |
| DOI：10.16081/j.epae.202002014 |
| 分类号:TM911 |
| 基金项目:国家重点研发计划项目(2018YFB0905600)；国家自然科学基金资助项目(51622703, U1766216) |
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| Segmented hybrid equalization control strategy for battery packs |
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ZHANG E, XU Cheng, WANG Kangli, JIANG Kai
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State Key Laboratory of Advanced Electromagnetic Engineering and Technology, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
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| Abstract: |
| In order to solve the inconsistency problem of battery packs caused by the difference of manufacturing technology and application environment, aiming at the battery system with characteristics of wide voltage platform and fast voltage change rate at the charging and discharging terminals, a segmented hybrid equalization control strategy based on voltage and SOC(State Of Charge) is proposed. An active equalization topology structure based on multi-winding structure of bi-directional fly-back transformer is proposed based on MATLAB/Simulink simulation platform, and the effectiveness of the proposed segmented hybrid equalization control strategy is verified under several different operation conditions of the battery packs. Compared with the equalization control strategy with only one single equalization variable, simulative results show that the proposed segmented hybrid equalization control strategy can maintain good balance effect of battery pack voltage and SOC at the same time after charging or discharging, and improve the consistency of battery packs more effectively. |
| Key words: battery packs inconsistency equalization topology structure hybrid control strategy |
