4.8 Article

Bidirectional Buck-Boost Converter Using Cascaded Energy Storage Modules Based on Cell Voltage Equalizers

期刊

IEEE TRANSACTIONS ON POWER ELECTRONICS
卷 38, 期 1, 页码 1249-1261

出版社

IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TPEL.2022.3203900

关键词

Equalizers; Computer architecture; Microprocessors; Energy storage; Voltage; Inductors; Capacitors; Buck-boost converter; cascaded converter; electric double-layer capacitor (EDLC); voltage equalizer; voltage imbalance

向作者/读者索取更多资源

This article proposes a bidirectional buck-boost converter using cascaded energy storage modules to address the issues of ordinary modular energy storage systems. By adjusting the duty cycle of the half-bridge cells, the module voltages can be equalized, and the cascaded structure effectively increases the switching frequency.
Ordinary modular energy storage systems require cell- and module-level equalizers, in addition to a main bidirectional converter, increasing the system complexity and cost. This article proposes a bidirectional buck-boost converter using cascaded energy storage modules. Each module contains a cell-level equalizer with a half-bridge cell. The half-bridge cell in each module is utilized not only for the cell-level equalizer but also for the cascaded buck-boost converter. Module voltages are equalized by adjusting duty cycles of the half-bridge cells, allowing the elimination of dedicated module-level equalizers. Furthermore, the cascaded structure equivalently increases the switching frequency and reduces the inductor current ripple. An experimental charge-discharge cycling test using the prototype was performed for three electric double-layer capacitor modules. Cell and module voltages were gradually equalized during cycling, demonstrating the bidirectional power conversion and cell- and module-voltage equalization capabilities of the proposed converter.

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.8
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

暂无数据
暂无数据