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Multicell-to-Multicell Equalizer With Hybrid Pulsewidth Modulation and Phase-Shift Modulation

delete2024-04-01
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PRE
AI
G
Guo Xu
E
Enze Chen
F
Fulin Liu *
Y
Yonglu Liu
W
Wenjing Xiong
M
Mei Su
DOI:10.1109/TPEL.2023.3341513delete
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摘要

摘要

En 中文
In this article, an any-cells-to-any-cells equalizer based on the multiwinding transformer is proposed to reduce the component number and increase the balancing speed. Every two adjacent cells only require two mosfets and one transformer winding to construct a buck-boost converter, and several two-cell groups construct a multiactive bridge converter, which achieves a low component number. By modulating the duty cycle and phase-shift ratio, the equalization between different cells can occur simultaneously, which achieves fast balancing speed. In addition, a current distribution strategy is designed in detail, which ensures that the balancing current of each cell is under modulation during the equalization process. Finally, a prototype, including six lithium-ion cells, is established. The experimental and comparative results verify the correctness of the theoretical analysis.
Keyword:
Any-cells-to-any-cells (AC2AC) mode
fast equalizer
multiwinding transformer
phase-shifting modulation

期刊

IEEE Transactions on Power Electronics 封面图
IEEE Transactions on Power Electronics
IF:
6.5
论文数:
1.7W
被引数:
8.3W

机构

C
Central South University
学者数:
10.0W
论文数: 7.2W
被引数: 10.9W
引用论文

引用论文

An LLC-Based Battery Equalizer With Inherent Current Limitation
err2021-01-01
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PREAI
errZou, Runmin; Liu, Fulin; Liu, Yonglu; Xu, Guo; Liu, Fang
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