Design of Voltage Equalization Circuit and Control Method for Lithium-ion Battery Packs

被引：0

作者：

Wang, Qi ^{[1
,2
,3
]}

Ge, Lantian ^{[1
]}

Xie, Tianru ^{[1
]}

Huang, Yibo ^{[1
]}

Gu, Yandong ^{[1
]}

Zhu, Tao ^{[1
]}

Gao, Xuehua ^{[1
]}

机构：

[1] School of Electrical and Information Engineering, Jiangsu University of Technology, Changzhou

[2] Research and Development Department, Shuangdeng Group Co., Ltd, Taizhou

[3] School of Automotive and Traffic Engineering, Jiangsu University, Zhenjiang

来源：

Energy Engineering: Journal of the Association of Energy Engineering | 2025年 / 122卷 / 02期

关键词：

control; Lithium-ion battery; single-capacitor method; voltage balancing;

D O I：

10.32604/ee.2024.059453

中图分类号：

TM [电工技术];

学科分类号：

0808 ;

摘要：

The active equalization of lithium-ion batteries involves transferring energy from high-voltage cells to low-voltage cells, ensuring consistent voltage levels across the battery pack and maintaining safety. This paper presents a voltage balancing circuit and control method. First, a single capacitor method is used to design the circuit topology for energy transfer. Next, real-time voltage detection and control are employed to balance energy between cells. Finally, simulation and experimental results demonstrate the effectiveness of the proposed method, achieving balanced voltages of 3.97 V from initial voltages of 4.10, 3.97, and 3.90 V. The proposed circuit is simple, reliable, and effectively prevents overcharge and overdischarge. © 2025 The Authors.

引用

页码：733 / 746

页数：13

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