含Buck电路的锂电池低功耗电量均衡技术研究

doi:10.19595/j.cnki.1000-6753.tces.170408

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摘要锂离子电池具有功率密度大、使用寿命长和重量轻等特点,现已被广泛应用于电动汽车、通信设备和家用电器等领域,但受充、放电电量不均衡问题的影响,电池组运行的效率及稳定性较差,电池均衡问题已成为近年来研究的热点。针对此问题,拟采用一种含Buck电路的电量均衡方法和自适应无迹卡尔曼滤波剩余电量（SOC）算法,重点研究该电路的均衡原理、控制策略及其应用方法,通过仿真和实验分别对其均衡效果进行了验证。与传统方法相比,该方法具有电路简单、损耗低及响应快速等优点。

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	魏业文
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	刘国特

关键词 ：锂离子电池, Buck电路, 电量均衡电路, 串联电池组

Abstract：Lithium-ion battery, benefits from its high power density and long life-time and light weight, has been widely used in the field of electrical vehicle, communication device and household appliance. But it has also met with much skepticism due to its operating efficiency and stability. The main reason, leads to this problem, is thought to be power-unbalance of each battery cell during its charging and discharging process. It’s a hot topic and has been attracted much more attention in recent years. This work wants to solve this problem by using a buck chopper and Adaptive Unscented Kalman Algorithm for state of charge (SOC). Equalization circuit, control strategy and applications were emphatically discussed and have been verified by simulation and experiment. The advantages, compares to traditional method, include simplify circuit structure, less loss and fast response.

Key words： Lithium-ion battery Buck chopper power equalization circuit series-connected batteries

收稿日期: 2017-04-05 出版日期: 2018-06-13

PACS:

TM911

基金资助:湖北教育厅优秀中青年科技创新团队资助项目（T201504）

通讯作者: 邾玢鑫男,1986年生,博士,副教授,研究方向为锂离子电池组电量均衡技术和无线电能传输技术。E-mail：zhubinxin40@163.com

作者简介: 魏业文男,1987年生,博士,研究方向为电网无功补偿技术和锂离子电池组电量均衡技术。E-mail：weiyewen8@126.com

引用本文:

魏业文, 李应智, 曹斌, 邾玢鑫, 刘国特. 含Buck电路的锂电池低功耗电量均衡技术研究[J]. 电工技术学报, 2018, 33(11): 2575-2583. Wei Yewen, Li Yingzhi, Cao Bin, Zhu Binxin, Liu Guote. Research on Power Equalization of Lithium-Ion Batterieswith Less-Loss Buck Chopper. Transactions of China Electrotechnical Society, 2018, 33(11): 2575-2583.

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