Composite layered equalization circuit for LiFePO4 battery pack of mine-used monorail
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摘要: 在矿用单轨吊磷酸铁锂电池组连续的充放电循环中，各单体电池不一致性会导致电池组整体性能衰减、使用寿命缩短，传统电池组均衡方式均衡时间长、控制策略复杂。针对上述问题，在Buck-Boost均衡电路和飞渡电容均衡电路的基础上，提出了一种复合式分层均衡电路。底层和中间层Buck-Boost均衡电路按照二叉树结构构建，顶层飞渡电容均衡电路实现3个相邻电池组之间任意2个电池组的能量传递，使电池不仅能够在层内进行能量传递以实现相邻电池间均衡，还可在层间进行能量传递以实现非相邻电池间均衡。仿真结果表明，复合式分层均衡电路大大缩短了均衡时间，显著提高了电池电压一致性。Abstract: In continuous charging and discharging cycle of LiFePO4 battery pack of mine-used monorail, inconsistency among each single batteries will lead to overall performance degradation and shorten service life of the battery pack. Traditional battery pack equalization mode has long equalization time and complex control strategy. In order to solve the above problems, a composite layered equalization circuit was proposed based on Buck-Boost equalization circuit and flying-capacitor equalization circuit. Buck-Boost equalization circuits in bottom layer and middle layer are constructed according to binary tree structure, and flying-capacitor equalization circuit in top layer realizes energy transfer of any two batteries between three adjacent batteries, so that the batteries can not only transfer energy within layer to achieve equalization between adjacent batteries, but also transfer energy between layers to achieve equalization between non-adjacent batteries. The simulation results show that the composite layered equalization circuit greatly reduces equalization time and significantly improves battery voltage consistency.
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期刊类型引用(7)
1. 凃玲英，秦宇，周意入，李曦. 基于电感的复合型锂电池主动均衡研究. 湖北工业大学学报. 2025(01): 32-36 . 
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2. 方同辉，周航，陈永浦，尹可强，邓海顺. 矿用电动单轨吊动力电池监控系统的研究. 煤矿机电. 2024(01): 15-19 . 百度学术
3. 汪光，赵理，李昆. 基于开关电容的动力电池组主动均衡参数研究. 机械设计与制造. 2024(08): 100-104 . 百度学术
4. 甄阳清，詹召伟，张海燕，郑益飞，孙恒升，赵永美，袁有文. 负载敏感型控制策略在单轨吊运输的研究与应用. 机械管理开发. 2024(11): 278-282 . 百度学术
5. 候培养. 煤矿锂电池单轨吊机车快速安装研究. 内蒙古煤炭经济. 2023(05): 36-38 . 百度学术
6. 马宏伟，段优优，薛旭升，孙思雅，张烨，王川伟，郭逸风，崔闻达. 煤矿智能单轨吊研究进展与关键技术. 工矿自动化. 2023(06): 57-67 . 本站查看
7. 王毅颖，顾英，李俊庆，张宏财，史艳楠，王瀚秋. 煤矿井下两级膨胀气动单轨吊研究应用. 煤炭工程. 2022(04): 74-78 . 百度学术
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