Mission profile-oriented active thermal control of a bidirectional three-level buck-boost GaN-based DC-DC converter for electric vehicles powertrains

Christian A. Rojas, Ruben Gonzalez, Leonardo Callegaro, Hector Young

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

1 Citation (Scopus)

Abstract

One of current challenges in high-density electric vehicles (EVs) is the efficient thermal control of power converters and the reliable management of power flows in motoring/breaking mode for the battery bank. In this line, this paper presents an Active Thermal Control (ATC) scheme to regulate thermal stress in Gallium Nitride High Electron Mobility Transistors (GaN HEMTs) devices of a three-level bidirectional buck-boost DC-DC converter (TLBBC) as a power interface between battery and motor inverter. The TLBBC is designed to operate at a rated power of 20 kW as part of a modular system, by using parallel GaN devices. Proposed control schemes are implemented using systematic linear control design. Finally, the system is simulated and tested for a Mission Profile-Oriented (MPO) based on Highway Fuel Economy Test (HWFET) in order to validate the proposed control schemes.

Original languageEnglish
Title of host publicationIECON 2021 – 47th Annual Conference of the IEEE Industrial Electronics Society
Place of PublicationPiscataway, NJ
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Number of pages6
ISBN (Electronic)9781665435543
ISBN (Print)9781665402569
DOIs
Publication statusPublished - 2021
Event47th Annual Conference of the IEEE Industrial Electronics Society, IECON 2021 - Toronto, Canada
Duration: 13 Oct 202116 Oct 2021

Publication series

Name
ISSN (Print)1553-572X
ISSN (Electronic)2577-1647

Conference

Conference47th Annual Conference of the IEEE Industrial Electronics Society, IECON 2021
Country/TerritoryCanada
CityToronto
Period13/10/2116/10/21

Keywords

  • Active Thermal Control (ATC)
  • DC-DC converter
  • Gallium Nitride (GaN)
  • Highway Fuel Economy Test (HWFET)
  • Mission Profile-Oriented (MPO)
  • Three-level buck-boost converter (TLBBC)
  • Voltage Balance Control (VBC)

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