Continuously Adjustable Modular Bidirectional Switched-Capacitor DC-DC Converter

Shouheng Han; Yijie Wang; Zhenli Xie; Yueshi Guan; J. Marcos Alonso; Dianguo Xu

doi:10.1109/TPEL.2022.3181495

Continuously Adjustable Modular Bidirectional Switched-Capacitor DC-DC Converter

Shouheng Han
, Yijie Wang^*
, Zhenli Xie
, Yueshi Guan
, J. Marcos Alonso
, Dianguo Xu

^*Corresponding author for this work

School of Electrical Engineering and Automation, Harbin Institute of Technology
Aerospace Changfeng Chaoyang Power Supply Company Ltd.
University of Oviedo

Research output: Contribution to journal › Article › peer-review

24 Scopus citations

Abstract

This letter proposes a switched capacitor (SC)-based continuously adjustable modular bidirectional dc-dc converter. The structure of the proposed converter consists of three types of modules, series-parallel SC converter module, regulating module, and resonant SC converters module. A basic configuration of three modules working in buck operating mode is analyzed in detail. The boost mode operation is symmetrical to the buck mode. The regulation module provides all regulation capability, and the other two modules operate at fixed duty cycle and provide the main conversion ratio. A prototype of the basic configuration was built to verify the theory. The peak efficiency of the prototype is 97.15%.

Original language	English
Pages (from-to)	12944-12948
Number of pages	5
Journal	IEEE Transactions on Power Electronics
Volume	37
Issue number	11
DOIs	https://doi.org/10.1109/TPEL.2022.3181495
State	Published - 1 Nov 2022
Externally published	Yes

Keywords

Bidirectional power flow
buck∞boost
dc∞dc converters
modular design
switched capacitor circuits (SCC)

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10.1109/TPEL.2022.3181495

Cite this

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title = "Continuously Adjustable Modular Bidirectional Switched-Capacitor DC-DC Converter",

abstract = "This letter proposes a switched capacitor (SC)-based continuously adjustable modular bidirectional dc-dc converter. The structure of the proposed converter consists of three types of modules, series-parallel SC converter module, regulating module, and resonant SC converters module. A basic configuration of three modules working in buck operating mode is analyzed in detail. The boost mode operation is symmetrical to the buck mode. The regulation module provides all regulation capability, and the other two modules operate at fixed duty cycle and provide the main conversion ratio. A prototype of the basic configuration was built to verify the theory. The peak efficiency of the prototype is 97.15\%.",

keywords = "Bidirectional power flow, buck∞boost, dc∞dc converters, modular design, switched capacitor circuits (SCC)",

author = "Shouheng Han and Yijie Wang and Zhenli Xie and Yueshi Guan and Alonso, \{J. Marcos\} and Dianguo Xu",

note = "Publisher Copyright: {\textcopyright} 1986-2012 IEEE.",

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doi = "10.1109/TPEL.2022.3181495",

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T1 - Continuously Adjustable Modular Bidirectional Switched-Capacitor DC-DC Converter

AU - Han, Shouheng

AU - Wang, Yijie

AU - Xie, Zhenli

AU - Guan, Yueshi

AU - Alonso, J. Marcos

AU - Xu, Dianguo

PY - 2022/11/1

Y1 - 2022/11/1

N2 - This letter proposes a switched capacitor (SC)-based continuously adjustable modular bidirectional dc-dc converter. The structure of the proposed converter consists of three types of modules, series-parallel SC converter module, regulating module, and resonant SC converters module. A basic configuration of three modules working in buck operating mode is analyzed in detail. The boost mode operation is symmetrical to the buck mode. The regulation module provides all regulation capability, and the other two modules operate at fixed duty cycle and provide the main conversion ratio. A prototype of the basic configuration was built to verify the theory. The peak efficiency of the prototype is 97.15%.

AB - This letter proposes a switched capacitor (SC)-based continuously adjustable modular bidirectional dc-dc converter. The structure of the proposed converter consists of three types of modules, series-parallel SC converter module, regulating module, and resonant SC converters module. A basic configuration of three modules working in buck operating mode is analyzed in detail. The boost mode operation is symmetrical to the buck mode. The regulation module provides all regulation capability, and the other two modules operate at fixed duty cycle and provide the main conversion ratio. A prototype of the basic configuration was built to verify the theory. The peak efficiency of the prototype is 97.15%.

KW - Bidirectional power flow

KW - buck∞boost

KW - dc∞dc converters

KW - modular design

KW - switched capacitor circuits (SCC)

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M3 - 文章

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VL - 37

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JO - IEEE Transactions on Power Electronics

JF - IEEE Transactions on Power Electronics

IS - 11

ER -

Continuously Adjustable Modular Bidirectional Switched-Capacitor DC-DC Converter

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Keywords

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