基于开关分流电阻的锂电池SOH被动均衡方案

吴青峰; 杨凯义; 杨艺涛; 刘立群; 樊亚敏; 薄利明

doi:10.19912/j.0254-0096.tynxb.2023-1310

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太阳能学报 ›› 2024, Vol. 45 ›› Issue (12) : 520-527. DOI: 10.19912/j.0254-0096.tynxb.2023-1310

基于开关分流电阻的锂电池SOH被动均衡方案

吴青峰¹, 杨凯义¹, 杨艺涛¹, 刘立群¹, 樊亚敏¹, 薄利明²

作者信息 +

PASSIVE SOH BALANCING SCHEME FOR LITHIUM BATTERY BASED ON SWITCHING SHUNT RESISTANCE

Wu Qingfeng¹, Yang Kaiyi¹, Yang Yitao¹, Liu Liqun¹, Fan Yamin¹, Bo Liming²

Author information +

文章历史 +

摘要

现有锂电池健康状态（SOH）被动均衡方案均聚焦锂电池荷电状态（SOC）,尚未形成成熟的SOH均衡技术。针对此问题,提出一种基于分流电阻的锂电池组间的SOH被动均衡方案,分析SOH均衡原理,研究分流电阻阻值计算和接入切除法则,从而实现锂电池SOH均衡,使所有锂电池同时退役,节约维护成本。最后,利用Matlab仿真软件和实验平台进行仿真和实验验证,仿真和实验结果验证所提方案的有效性。

Abstract

The existing passive balancing schemes for the state of health （SOH） of lithium batteries focus on the state of charge （SOC） of lithium batteries, and mature SOH balancing technologies have not yet been formed. To address this issue,a passive SOH balancing scheme between lithium battery packs based on shunt resistance is proposed. The principle of SOH balancing is analyzed,and the calculation of shunt resistance value and the connection removal rule are studied. This achieves SOH balancing of the lithium batteries,enabling all lithium batteries to retire simultaneously and reducing maintenance costs. Finally,the effectiveness of the proposed scheme is validated through simulation and experimental verification using Matlab simulation software and an experimental platform.

导出引用

吴青峰, 杨凯义, 杨艺涛, 刘立群, 樊亚敏, 薄利明. 基于开关分流电阻的锂电池SOH被动均衡方案[J]. 太阳能学报. 2024, 45(12): 520-527 https://doi.org/10.19912/j.0254-0096.tynxb.2023-1310

Wu Qingfeng, Yang Kaiyi, Yang Yitao, Liu Liqun, Fan Yamin, Bo Liming. PASSIVE SOH BALANCING SCHEME FOR LITHIUM BATTERY BASED ON SWITCHING SHUNT RESISTANCE[J]. Acta Energiae Solaris Sinica. 2024, 45(12): 520-527 https://doi.org/10.19912/j.0254-0096.tynxb.2023-1310

中图分类号： TM46

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