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Bidirectional Communication Between Parallel Buck Converters

  • Xudong Tang
  • , Yang Leng
  • , Pude Yu
  • , Rongwu Zhu
  • , Dongsheng Yu*
  • *Corresponding author for this work
  • China University of Mining and Technology
  • Ltd.
  • Harbin Institute of Technology Shenzhen

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Power and signal composite modulation (PSCM) has been applied for achieving communication among power converters. Strategy for transmitting signals multi-directionally among power converters is rarely detailed in literatures. In this paper, bidirectional communication between two Buck converters is achieved by PSCM via dc bus by employing the PWM-frequency-shift keying (FSK) and PWM-phase-shift keying (PSK) methods. In addition, the frequency division multiplexing access (FDMA) is employed to identify the signal accesses from different power converters. The calculation of output voltage ripples considering data transmission is analyzed and simulations are conducted to verify the feasibility of the proposed communication method. The results show that amplitude of the switching voltage ripples for signal communication can be limited below 0.5% to guarantee power quality.

Original languageEnglish
Title of host publicationProceedings of the 3rd International Symposium on New Energy and Electrical Technology
EditorsWenping Cao, Cungang Hu, Xiangping Chen
PublisherSpringer Science and Business Media Deutschland GmbH
Pages53-59
Number of pages7
ISBN (Print)9789819905522
DOIs
StatePublished - 2023
Externally publishedYes
Event3rd International Symposium on New Energy and Electrical Technology, ISNEET 2022 - Anyang, China
Duration: 25 Aug 202227 Aug 2022

Publication series

NameLecture Notes in Electrical Engineering
Volume1017 LNEE
ISSN (Print)1876-1100
ISSN (Electronic)1876-1119

Conference

Conference3rd International Symposium on New Energy and Electrical Technology, ISNEET 2022
Country/TerritoryChina
CityAnyang
Period25/08/2227/08/22

Keywords

  • Bidirectional communication
  • Parallel Buck converters
  • Switching voltage ripples

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