基于三绕组变压器式电池组快速均衡方法研究

打开文本图片集

DOI：10.16652/j.issn.1004-373x.2026.10.013

引用格式：，，，等.基于三绕组变压器式电池组快速均衡方法研究[J].现代电子技术，2026，49（10）：86-93.

中图分类号：TN304-34；TM912

文献标识码：A

文章编号：1004-373X（2026）10-0086-08

Method of battery pack rapid equalization based on three-winding transformer

Wei Yewen， Zhou Zhipeng， Zhang Jie， Yu Weixu， Quan Yiheng， Zhang Sijia

（College of Electrical Engineering and New Energy， China Three Gorges University， Yichang 443002， China）

Abstract： In allusion to the issue of voltage inconsistency among individual cells in energy storage battery packs caused by manufacturing processes and other factors， a fast balancing scheme for battery packs based on a three-winding transformer is proposed. This scheme is composed of a active equalization topology based on three-winding transformer and a corresponding fast equalization control strategy. In the balancing scheme， the terminal voltage of the battery is used as the balancing variable， and the three-winding transformer serving is used as the energy storage element， which includes two operating modes： highest-cell-to-lowest-cell and highest-cell-to-lowest-and-second-lowest-cell. During the balancing process， these two modes can operate alternately， enabling flexible energy transfer among the three windings and improving the balancing speed. The simulation results on the MATLAB/Simulink platform show that under three conditions - static， charging and discharging， the three - winding transformer-based fast balancing scheme can reduce the balancing time by 42.9%， 40.2% and 39.2% compared to the transformer-based pack-to-cell balancing circuit， respectively; by 34.1%， 32.7% and 34% compared to the transformer-based cell-to-pack balancing circuit， respectively; and by 22.4%， 27.9% and 30.5% compared to the transformer-based cell-to-cell balancing circuit， respectively.

Keywords： energy storage system; lithium battery; three-winding transformer; active balancing; terminal voltage; balancing speed

0 引言

构建以可再生能源为核心的新型电力系统是推动全球能源绿色转型、实现能源高质量发展的关键路径，同时也是加速实现“双碳”目标的重要举措[1]。（剩余9752字）