An Integrated Traction Drive with a High Speed Surface Permanent Magnet External Rotor Motor for Electric Vehicles

Vandana Rallabandi, Mostak Mohammad, Himel Barua, Shajjad Chowdhury, Burak Ozpineci, Jon Wilkins, Lainshan Lin, Bidzina Kekelia, Emily Cousineau

Research output: Contribution to conferencePaper

1 Scopus Citations

Abstract

This work presents the detailed design of an outer rotor motor and integrated drive for passenger electric vehicles. The motor uses non-heavy rare earth permanent magnets and operates at a top speed of 20,000rpm. In-slot ceramic heat exchangers are utilized for the cooling of the windings. The external rotor configuration of the motor leaves a significant amount of space in the stator bore, which is leveraged for the integration of the power electronics. A high speed external rotor motor creates a number of mechanical, thermal and assembly challenges and this work presents detailed thermal, mechanical and rotordynamics analysis.
Original languageAmerican English
Pages4140-4146
Number of pages7
DOIs
StatePublished - 2023
EventIEEE Energy Conversion Congress & Expo (ECCE) 2023 - Nashville, TN
Duration: 29 Oct 20232 Nov 2023

Conference

ConferenceIEEE Energy Conversion Congress & Expo (ECCE) 2023
CityNashville, TN
Period29/10/232/11/23

NREL Publication Number

  • NREL/CP-5400-86374

Keywords

  • ceramic heat exchanger
  • integrated electric drive
  • outer rotor motor
  • power electronics
  • thermal management

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