A Single-Stage Dual-Active-Bridge AC-DC Converter Employing Mode Transition Based on Real-Time Calculation

Deshang Sha; Debin Zhang; Jiankun Zhang

doi:10.1109/TPEL.2021.3058143

A Single-Stage Dual-Active-Bridge AC-DC Converter Employing Mode Transition Based on Real-Time Calculation

Deshang Sha^*, Debin Zhang, Jiankun Zhang

^*Corresponding author for this work

School of Automation

Beijing Institute of Technology

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

72 Citations (Scopus)

Abstract

In this article, a double degree-of-freedom variable control strategy with fixed frequency is proposed for a single-phase single-stage ac-dc rectifier based on dual active bridges. The proposed modulation strategy can achieve power factor correction without inner current ac current loop. In addition, the two control variables are calculated in real time without using look-up tables, and their combination not only achieves wider zero voltage switching range for switches but also lowers transformer current stress. The mode transition, the soft switching range, and working mode composition are analyzed. Besides, a 1-kW experimental prototype was built to verify the effectiveness of the control strategy.

Original language	English
Article number	9351779
Pages (from-to)	10081-10088
Number of pages	8
Journal	IEEE Transactions on Power Electronics
Volume	36
Issue number	9
DOIs	https://doi.org/10.1109/TPEL.2021.3058143
Publication status	Published - Sept 2021

Keywords

Dual active bridge (DAB)
power factor correction (PFC)
single-stage ac-dc converter
zero voltage switching (ZVS)

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10.1109/TPEL.2021.3058143

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title = "A Single-Stage Dual-Active-Bridge AC-DC Converter Employing Mode Transition Based on Real-Time Calculation",

abstract = "In this article, a double degree-of-freedom variable control strategy with fixed frequency is proposed for a single-phase single-stage ac-dc rectifier based on dual active bridges. The proposed modulation strategy can achieve power factor correction without inner current ac current loop. In addition, the two control variables are calculated in real time without using look-up tables, and their combination not only achieves wider zero voltage switching range for switches but also lowers transformer current stress. The mode transition, the soft switching range, and working mode composition are analyzed. Besides, a 1-kW experimental prototype was built to verify the effectiveness of the control strategy.",

keywords = "Dual active bridge (DAB), power factor correction (PFC), single-stage ac-dc converter, zero voltage switching (ZVS)",

author = "Deshang Sha and Debin Zhang and Jiankun Zhang",

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

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AU - Sha, Deshang

AU - Zhang, Debin

AU - Zhang, Jiankun

PY - 2021/9

Y1 - 2021/9

N2 - In this article, a double degree-of-freedom variable control strategy with fixed frequency is proposed for a single-phase single-stage ac-dc rectifier based on dual active bridges. The proposed modulation strategy can achieve power factor correction without inner current ac current loop. In addition, the two control variables are calculated in real time without using look-up tables, and their combination not only achieves wider zero voltage switching range for switches but also lowers transformer current stress. The mode transition, the soft switching range, and working mode composition are analyzed. Besides, a 1-kW experimental prototype was built to verify the effectiveness of the control strategy.

AB - In this article, a double degree-of-freedom variable control strategy with fixed frequency is proposed for a single-phase single-stage ac-dc rectifier based on dual active bridges. The proposed modulation strategy can achieve power factor correction without inner current ac current loop. In addition, the two control variables are calculated in real time without using look-up tables, and their combination not only achieves wider zero voltage switching range for switches but also lowers transformer current stress. The mode transition, the soft switching range, and working mode composition are analyzed. Besides, a 1-kW experimental prototype was built to verify the effectiveness of the control strategy.

KW - Dual active bridge (DAB)

KW - power factor correction (PFC)

KW - single-stage ac-dc converter

KW - zero voltage switching (ZVS)

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SN - 0885-8993

VL - 36

SP - 10081

EP - 10088

JO - IEEE Transactions on Power Electronics

JF - IEEE Transactions on Power Electronics

IS - 9

M1 - 9351779

ER -

A Single-Stage Dual-Active-Bridge AC-DC Converter Employing Mode Transition Based on Real-Time Calculation

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