Improved Modulation Strategy for Single-Phase Isolated Quasi-Single-Stage AC-DC Converter to Improve Current Characteristics

Xiaoguang Li; Fengjiang Wu; Guijie Yang; Hongchen Liu

doi:10.1109/TPEL.2019.2937007

Improved Modulation Strategy for Single-Phase Isolated Quasi-Single-Stage AC-DC Converter to Improve Current Characteristics

Xiaoguang Li
, Fengjiang Wu^*
, Guijie Yang
, Hongchen Liu

^*Corresponding author for this work

School of Electrical Engineering and Automation

Harbin Institute of Technology

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

40 Scopus citations

Abstract

In this article, an improved triple-phase-shift (ITPS) modulation for the single-phase isolated quasi-single-stage ac-dc converter is proposed to realize the current decouple between the adjacent switching periods and to reduce the grid current distortion. Moreover, the dead band effect on the proposed ITPS is analyzed for the first time. It reveals that the dead band causes not only the current couple and accordingly the grid current distortion but also the current amplitude loss. A two-step phase-shift compensation scheme is proposed based on the analysis result to solve the problems caused by the dead band. All of the theoretical analysis, the proposed ITPS modulation, and the dead band compensation scheme are validated in detail in the experimental way.

Original language	English
Article number	8809835
Pages (from-to)	4296-4308
Number of pages	13
Journal	IEEE Transactions on Power Electronics
Volume	35
Issue number	4
DOIs	https://doi.org/10.1109/TPEL.2019.2937007
State	Published - Apr 2020

Keywords

Dead band
high-frequency isolation
quasi-single-stage ac-dc converter
three phase shifts

Access to Document

10.1109/TPEL.2019.2937007

Cite this

@article{60ace7f6f1f445e58a4f8435ddb58a07,

title = "Improved Modulation Strategy for Single-Phase Isolated Quasi-Single-Stage AC-DC Converter to Improve Current Characteristics",

abstract = "In this article, an improved triple-phase-shift (ITPS) modulation for the single-phase isolated quasi-single-stage ac-dc converter is proposed to realize the current decouple between the adjacent switching periods and to reduce the grid current distortion. Moreover, the dead band effect on the proposed ITPS is analyzed for the first time. It reveals that the dead band causes not only the current couple and accordingly the grid current distortion but also the current amplitude loss. A two-step phase-shift compensation scheme is proposed based on the analysis result to solve the problems caused by the dead band. All of the theoretical analysis, the proposed ITPS modulation, and the dead band compensation scheme are validated in detail in the experimental way.",

keywords = "Dead band, high-frequency isolation, quasi-single-stage ac-dc converter, three phase shifts",

author = "Xiaoguang Li and Fengjiang Wu and Guijie Yang and Hongchen Liu",

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

year = "2020",

month = apr,

doi = "10.1109/TPEL.2019.2937007",

language = "英语",

volume = "35",

pages = "4296--4308",

journal = "IEEE Transactions on Power Electronics",

issn = "0885-8993",

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

number = "4",

}

TY - JOUR

T1 - Improved Modulation Strategy for Single-Phase Isolated Quasi-Single-Stage AC-DC Converter to Improve Current Characteristics

AU - Li, Xiaoguang

AU - Wu, Fengjiang

AU - Yang, Guijie

AU - Liu, Hongchen

PY - 2020/4

Y1 - 2020/4

N2 - In this article, an improved triple-phase-shift (ITPS) modulation for the single-phase isolated quasi-single-stage ac-dc converter is proposed to realize the current decouple between the adjacent switching periods and to reduce the grid current distortion. Moreover, the dead band effect on the proposed ITPS is analyzed for the first time. It reveals that the dead band causes not only the current couple and accordingly the grid current distortion but also the current amplitude loss. A two-step phase-shift compensation scheme is proposed based on the analysis result to solve the problems caused by the dead band. All of the theoretical analysis, the proposed ITPS modulation, and the dead band compensation scheme are validated in detail in the experimental way.

AB - In this article, an improved triple-phase-shift (ITPS) modulation for the single-phase isolated quasi-single-stage ac-dc converter is proposed to realize the current decouple between the adjacent switching periods and to reduce the grid current distortion. Moreover, the dead band effect on the proposed ITPS is analyzed for the first time. It reveals that the dead band causes not only the current couple and accordingly the grid current distortion but also the current amplitude loss. A two-step phase-shift compensation scheme is proposed based on the analysis result to solve the problems caused by the dead band. All of the theoretical analysis, the proposed ITPS modulation, and the dead band compensation scheme are validated in detail in the experimental way.

KW - Dead band

KW - high-frequency isolation

KW - quasi-single-stage ac-dc converter

KW - three phase shifts

UR - https://www.scopus.com/pages/publications/85078291082

U2 - 10.1109/TPEL.2019.2937007

DO - 10.1109/TPEL.2019.2937007

M3 - 文章

AN - SCOPUS:85078291082

SN - 0885-8993

VL - 35

SP - 4296

EP - 4308

JO - IEEE Transactions on Power Electronics

JF - IEEE Transactions on Power Electronics

IS - 4

M1 - 8809835

ER -

Improved Modulation Strategy for Single-Phase Isolated Quasi-Single-Stage AC-DC Converter to Improve Current Characteristics

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this