A Three-Phase Triple-Voltage Dual-Active-Bridge Converter for Medium Voltage DC Transformer to Reduce the Number of Submodules

Liangcai Shu; Wu Chen; Rongguan Li; Ke Zhang; Fujin Deng; Yubo Yuan; Tao Wang

doi:10.1109/TPEL.2020.2988280

A Three-Phase Triple-Voltage Dual-Active-Bridge Converter for Medium Voltage DC Transformer to Reduce the Number of Submodules

Liangcai Shu
, Wu Chen
, Rongguan Li
, Ke Zhang
, Fujin Deng
, Yubo Yuan
, Tao Wang

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

32 Scopus citations

Abstract

In order to improve the power density of dc transformer (DCT), this article proposes a novel three-phase dual-active-bridge (DAB) dc-dc converter, which possesses triple input voltage of conventional full-bridge DAB converter without increasing the voltage stress of switches. By adopting it as the DCT submodule (SM), the number of SMs in DCT is reduced markedly and power density can be improved. Based on the analysis of operation principle, design procedure, basic control strategy and startup scheme of the proposed three-phase triple-voltage DAB (T2-DAB) converter are presented. Then, the feasibility of proposed converter is verified with simulation and a 2 kW, 600/200 V prototype. Finally, the superiority of the DCT scheme based on proposed T2-DAB converter is verified by a comparison with some existing DAB schemes.

Original language	English
Article number	9072572
Pages (from-to)	11574-11588
Number of pages	15
Journal	IEEE Transactions on Power Electronics
Volume	35
Issue number	11
DOIs	https://doi.org/10.1109/TPEL.2020.2988280
State	Published - Nov 2020
Externally published	Yes

Keywords

DC transformer (DCT)
power density
three-phase dual-activebridge (T2-DAB) converter
voltage stress

Access to Document

10.1109/TPEL.2020.2988280

Cite this

@article{03410ef329aa488fae8baacdcc723306,

title = "A Three-Phase Triple-Voltage Dual-Active-Bridge Converter for Medium Voltage DC Transformer to Reduce the Number of Submodules",

abstract = "In order to improve the power density of dc transformer (DCT), this article proposes a novel three-phase dual-active-bridge (DAB) dc-dc converter, which possesses triple input voltage of conventional full-bridge DAB converter without increasing the voltage stress of switches. By adopting it as the DCT submodule (SM), the number of SMs in DCT is reduced markedly and power density can be improved. Based on the analysis of operation principle, design procedure, basic control strategy and startup scheme of the proposed three-phase triple-voltage DAB (T2-DAB) converter are presented. Then, the feasibility of proposed converter is verified with simulation and a 2 kW, 600/200 V prototype. Finally, the superiority of the DCT scheme based on proposed T2-DAB converter is verified by a comparison with some existing DAB schemes.",

keywords = "DC transformer (DCT), power density, three-phase dual-activebridge (T2-DAB) converter, voltage stress",

author = "Liangcai Shu and Wu Chen and Rongguan Li and Ke Zhang and Fujin Deng and Yubo Yuan and Tao Wang",

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

year = "2020",

month = nov,

doi = "10.1109/TPEL.2020.2988280",

language = "英语",

volume = "35",

pages = "11574--11588",

journal = "IEEE Transactions on Power Electronics",

issn = "0885-8993",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

number = "11",

}

TY - JOUR

T1 - A Three-Phase Triple-Voltage Dual-Active-Bridge Converter for Medium Voltage DC Transformer to Reduce the Number of Submodules

AU - Shu, Liangcai

AU - Chen, Wu

AU - Li, Rongguan

AU - Zhang, Ke

AU - Deng, Fujin

AU - Yuan, Yubo

AU - Wang, Tao

PY - 2020/11

Y1 - 2020/11

N2 - In order to improve the power density of dc transformer (DCT), this article proposes a novel three-phase dual-active-bridge (DAB) dc-dc converter, which possesses triple input voltage of conventional full-bridge DAB converter without increasing the voltage stress of switches. By adopting it as the DCT submodule (SM), the number of SMs in DCT is reduced markedly and power density can be improved. Based on the analysis of operation principle, design procedure, basic control strategy and startup scheme of the proposed three-phase triple-voltage DAB (T2-DAB) converter are presented. Then, the feasibility of proposed converter is verified with simulation and a 2 kW, 600/200 V prototype. Finally, the superiority of the DCT scheme based on proposed T2-DAB converter is verified by a comparison with some existing DAB schemes.

AB - In order to improve the power density of dc transformer (DCT), this article proposes a novel three-phase dual-active-bridge (DAB) dc-dc converter, which possesses triple input voltage of conventional full-bridge DAB converter without increasing the voltage stress of switches. By adopting it as the DCT submodule (SM), the number of SMs in DCT is reduced markedly and power density can be improved. Based on the analysis of operation principle, design procedure, basic control strategy and startup scheme of the proposed three-phase triple-voltage DAB (T2-DAB) converter are presented. Then, the feasibility of proposed converter is verified with simulation and a 2 kW, 600/200 V prototype. Finally, the superiority of the DCT scheme based on proposed T2-DAB converter is verified by a comparison with some existing DAB schemes.

KW - DC transformer (DCT)

KW - power density

KW - three-phase dual-activebridge (T2-DAB) converter

KW - voltage stress

UR - https://www.scopus.com/pages/publications/85089308409

U2 - 10.1109/TPEL.2020.2988280

DO - 10.1109/TPEL.2020.2988280

M3 - 文章

AN - SCOPUS:85089308409

SN - 0885-8993

VL - 35

SP - 11574

EP - 11588

JO - IEEE Transactions on Power Electronics

JF - IEEE Transactions on Power Electronics

IS - 11

M1 - 9072572

ER -

A Three-Phase Triple-Voltage Dual-Active-Bridge Converter for Medium Voltage DC Transformer to Reduce the Number of Submodules

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this