Electric-Drive Vehicle Power Electronics Thermal Management: Current Status, Challenges, and Future Directions Paper No. EP-20-1093: Current Status, Challenges, and Future Directions

Gilberto Moreno, Sreekant Narumanchi, Xuhui Feng, Paul Anschel, Steve Myers, Phil Keller

Research output: Contribution to journalArticlepeer-review

35 Scopus Citations

Abstract

Effective thermal management of traction-drive power electronics is critical to the advancement of electric-drive vehicles (EDVs) and is necessary for increasing power density and improving reliability. Replacing traditional silicon devices with more efficient, higher temperature, higher voltage, and higher frequency wide-bandgap (WBG) devices will enable increased power density but will result in higher device heat fluxes. Compact packaging of high-temperature WBG devices near low-temperature-rated components creates thermal management challenges that need to be addressed for future power-dense systems. This paper summarizes the thermal performance of on-road automotive power electronics thermal management systems and provides thermal performance metrics for select vehicles. Thermal analyses reveal that the package resistance dominates the total thermal resistance (for existing automotive systems). Advanced packaging concepts were modeled and the results were compared with existing packaging designs to quantify their thermal performance enhancements. Double-side (DS)-cooled configurations that do not use thermal interface materials (TIMs) are package concepts predicted to provide a low junction-to-fluid thermal resistance (compared to current packages). Dielectric-fluid-cooled concepts enable a redesign of the package to reduce the package resistance, can be implemented in single- and two-phase cooling approaches, and allow for cooling of passive components (e.g., capacitors) and bus bars.

Original languageAmerican English
Article number011004
Number of pages11
JournalJournal of Electronic Packaging, Transactions of the ASME
Volume144
Issue number1
DOIs
StatePublished - 1 Mar 2022

Bibliographical note

Publisher Copyright:
© 2021 EDP Sciences. All rights reserved.

NREL Publication Number

  • NREL/JA-5400-77073

Keywords

  • advanced cooling
  • electric drive vehicles
  • power electronics
  • thermal managment

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