[1]秦东晨,赵鸿飞,武红霞,等.基于可重构电路的串联电池动态分组主动均衡方法[J].郑州大学学报(工学版),2024,45(pre):2.[doi:10.13705/j.issn.1671-6833.2024.05.003]
　QIN Dongchen,ZHAO Hongfei,WU Hongxia,et al.Research on Dynamic Grouping Active Equalization of Series Batteries Based on Reconfigurable Circuits[J].Journal of Zhengzhou University (Engineering Science),2024,45(pre):2.[doi:10.13705/j.issn.1671-6833.2024.05.003]
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基于可重构电路的串联电池动态分组主动均衡方法()
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《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:
45
期数:
2024年pre
页码:
2
栏目:
出版日期:
2024-12-31

文章信息/Info

Title:
Research on Dynamic Grouping Active Equalization of Series Batteries Based on Reconfigurable Circuits
作者:
秦东晨;  赵鸿飞;  武红霞;  杨俊杰;  陈江义;  王婷婷
Author(s):
QIN Dongchen;  ZHAO Hongfei;  WU Hongxia;  YANG Junjie;  CHEN Jiangyi;  WANG Tingting
School of Mechanical and Power Engineering, Zhengzhou 450001, China
Keywords:
Lithium ion batteries;  Active equilibrium;  Reconfigurable circuit;  Dynamic grouping;  Many to many balance
DOI:
10.13705/j.issn.1671-6833.2024.05.003
文献标志码:
A
Abstract:
In order to solve the problem of inconsistent capacity of single battery in battery pack, the active equalization control technology of battery pack in series was studied, including the improvement of equalization topology and the design of equalization control strategy. Firstly, a new balanced topology is proposed and verified. Secondly, the mathematical model of the equalization circuit is established, and the effects of voltage difference and switching frequency on the equalization performance are analyzed. According to the results of voltage difference analysis, a many-to-many equalization control strategy based on variable duty cycle is designed to improve the equalization speed and equalization consistency. Finally, in MATLAB\ / Simulink, the equilibrium topology and the algorithm of co-simulation. The results show that compared with the fixed packet equalization control strategy, the proposed equalization topology and control strategy can improve the equalization speed and equalization consistency of the battery pack. The equalization time is reduced by 29.71%, the SOC variance of the charged state of the battery is reduced by 16.13%, and the number of energy transfers during the equalization process is reduced by 52.5%.
更新日期/Last Update: 2024-05-27