Research on a Novel Power Inductor-Based Bidirectional Lossless Equalization Circuit for Series-Connected Battery Packs

Cell balancing plays an important role in preserving the life of series-connected battery packs; without a suitable balancing system, the individual cell voltages will differ over time, and the battery pack capacity will decrease quickly. This paper presents a novel power inductor-based bidirectiona...

Full description

Saved in:
Bibliographic Details
Published inEnergies (Basel) Vol. 8; no. 6; pp. 5555 - 5576
Main Authors Guo, Xiangwei, Kang, Longyun, Huang, Zhizhen, Yao, Yuan, Yang, Huizhou
Format Journal Article
LanguageEnglish
Published MDPI AG 09.06.2015
Subjects
bidirectional lossless equalization
power inductor
series-connected battery pack
Online AccessGet full text

Cover

More Information
Summary:Cell balancing plays an important role in preserving the life of series-connected battery packs; without a suitable balancing system, the individual cell voltages will differ over time, and the battery pack capacity will decrease quickly. This paper presents a novel power inductor-based bidirectional lossless equalization circuit. This circuit consists of several balancing sub-circuits, which allow the dynamic adjustment of the equalization path and equalization threshold. The simulation and experiment results demonstrate that the proposed circuit, which features a simple control method, fast balancing, and a large equalization current, exhibits outstanding equalization performance.
ISSN:1996-1073
1996-1073
DOI:10.3390/en8065555