DC/DC Converter for Bipolar LVdc System with Integrated Voltage Balance Capability

Binbin Li; Qintian Fu; Shukai Mao; Xiaodong Zhao; Dianguo Xu; Xiaomin Gong; Qian Wang

doi:10.1109/TPEL.2020.3032417

DC/DC Converter for Bipolar LVdc System with Integrated Voltage Balance Capability

Binbin Li^*
, Qintian Fu
, Shukai Mao
, Xiaodong Zhao
, Dianguo Xu
, Xiaomin Gong
, Qian Wang

^*Corresponding author for this work

School of Electrical Engineering and Automation, Harbin Institute of Technology
China Electronics Technology Group Corporation

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

67 Scopus citations

Abstract

Bipolar LVdc distribution is a promising solution for better integration of renewables and enhancement of system efficiency and reliability, but it also faces the challenge of pole voltage imbalance. By simple modifications of the bidirectional CLLC dc/dc converter, this article presents a dc/dc converter with integrated pole voltage balance capability. The converter presents less number of semiconductors, smaller overall footprint, and lower power loss compared to the employment of additional pole voltage balancers. Operating principle of this dc/dc converter and its inherent pole voltage balancing capability are explained, while further control scheme is also developed to compensate the small pole voltage difference caused by the dead time effect. Simulation results with 150 kW/±375 V bipolar output demonstrate the effectiveness of the converter, and the experimental results from a 500 W/±50 V downscaled prototype further prove the proposed concept.

Original language	English
Article number	9233998
Pages (from-to)	5415-5424
Number of pages	10
Journal	IEEE Transactions on Power Electronics
Volume	36
Issue number	5
DOIs	https://doi.org/10.1109/TPEL.2020.3032417
State	Published - May 2021
Externally published	Yes

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Keywords

Bipolar LVdc system
dc/dc converter
pole voltage balance

Access to Document

10.1109/TPEL.2020.3032417

Cite this

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title = "DC/DC Converter for Bipolar LVdc System with Integrated Voltage Balance Capability",

abstract = "Bipolar LVdc distribution is a promising solution for better integration of renewables and enhancement of system efficiency and reliability, but it also faces the challenge of pole voltage imbalance. By simple modifications of the bidirectional CLLC dc/dc converter, this article presents a dc/dc converter with integrated pole voltage balance capability. The converter presents less number of semiconductors, smaller overall footprint, and lower power loss compared to the employment of additional pole voltage balancers. Operating principle of this dc/dc converter and its inherent pole voltage balancing capability are explained, while further control scheme is also developed to compensate the small pole voltage difference caused by the dead time effect. Simulation results with 150 kW/±375 V bipolar output demonstrate the effectiveness of the converter, and the experimental results from a 500 W/±50 V downscaled prototype further prove the proposed concept.",

keywords = "Bipolar LVdc system, dc/dc converter, pole voltage balance",

author = "Binbin Li and Qintian Fu and Shukai Mao and Xiaodong Zhao and Dianguo Xu and Xiaomin Gong and Qian Wang",

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

year = "2021",

month = may,

doi = "10.1109/TPEL.2020.3032417",

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volume = "36",

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

number = "5",

}

TY - JOUR

T1 - DC/DC Converter for Bipolar LVdc System with Integrated Voltage Balance Capability

AU - Li, Binbin

AU - Fu, Qintian

AU - Mao, Shukai

AU - Zhao, Xiaodong

AU - Xu, Dianguo

AU - Gong, Xiaomin

AU - Wang, Qian

PY - 2021/5

Y1 - 2021/5

N2 - Bipolar LVdc distribution is a promising solution for better integration of renewables and enhancement of system efficiency and reliability, but it also faces the challenge of pole voltage imbalance. By simple modifications of the bidirectional CLLC dc/dc converter, this article presents a dc/dc converter with integrated pole voltage balance capability. The converter presents less number of semiconductors, smaller overall footprint, and lower power loss compared to the employment of additional pole voltage balancers. Operating principle of this dc/dc converter and its inherent pole voltage balancing capability are explained, while further control scheme is also developed to compensate the small pole voltage difference caused by the dead time effect. Simulation results with 150 kW/±375 V bipolar output demonstrate the effectiveness of the converter, and the experimental results from a 500 W/±50 V downscaled prototype further prove the proposed concept.

AB - Bipolar LVdc distribution is a promising solution for better integration of renewables and enhancement of system efficiency and reliability, but it also faces the challenge of pole voltage imbalance. By simple modifications of the bidirectional CLLC dc/dc converter, this article presents a dc/dc converter with integrated pole voltage balance capability. The converter presents less number of semiconductors, smaller overall footprint, and lower power loss compared to the employment of additional pole voltage balancers. Operating principle of this dc/dc converter and its inherent pole voltage balancing capability are explained, while further control scheme is also developed to compensate the small pole voltage difference caused by the dead time effect. Simulation results with 150 kW/±375 V bipolar output demonstrate the effectiveness of the converter, and the experimental results from a 500 W/±50 V downscaled prototype further prove the proposed concept.

KW - Bipolar LVdc system

KW - dc/dc converter

KW - pole voltage balance

UR - https://www.scopus.com/pages/publications/85100520191

U2 - 10.1109/TPEL.2020.3032417

DO - 10.1109/TPEL.2020.3032417

M3 - 文章

AN - SCOPUS:85100520191

SN - 0885-8993

VL - 36

SP - 5415

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JO - IEEE Transactions on Power Electronics

JF - IEEE Transactions on Power Electronics

IS - 5

M1 - 9233998

ER -

DC/DC Converter for Bipolar LVdc System with Integrated Voltage Balance Capability

Abstract

UN SDGs

Keywords

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