TCM Controller Design for Three-Level Bidirectional Soft-Switching DC-DC Converter

Yaqiang Wang, Jingru Yang, Bowen Zhang, Xue Jiang, Zhen Kang, Tong Ni, Weilin Li

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

10 Scopus citations

Abstract

This paper proposes a three-level bidirectional Buck/Boost converter based on TCM (Triangular Current Mode) soft-switching control scheme, which can realize zero-voltage turn-on of all switching transistors in the full load range without adding resonant components. This paper analyzes the working principle of TCM mode and proposes the critical conditions for implementing soft switching. When the three-level bidirectional Buck/Boost converter is stable, its flying capacitor voltage must be maintained at half of the bus voltage. Therefore, a closed-loop regulation mode based on the fly-capacitor decoupling control combined with the TCM mode is proposed. The closed-loop simulation with MATLAB verifies the steady-state and dynamic performance of the entire system operating in Buck mode and Boost mode.

Original languageEnglish
Title of host publicationProceedings - 2019 IEEE 28th International Symposium on Industrial Electronics, ISIE 2019
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages996-1001
Number of pages6
ISBN (Electronic)9781728136660
DOIs
StatePublished - Jun 2019
Event28th IEEE International Symposium on Industrial Electronics, ISIE 2019 - Vancouver, Canada
Duration: 12 Jun 201914 Jun 2019

Publication series

NameIEEE International Symposium on Industrial Electronics
Volume2019-June

Conference

Conference28th IEEE International Symposium on Industrial Electronics, ISIE 2019
Country/TerritoryCanada
CityVancouver
Period12/06/1914/06/19

Keywords

  • decoupling control
  • flying capacitor
  • soft switch
  • three level
  • triangular current mode

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