Modular Multiphase Drives for Variable-Pole Induction Machines in Electric Vehicles

Elie Libbos, Ruomu Hao, Bonhyun Ku, Arijit Banerjee, Philip T. Krein

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Electric vehicles require high efficiency, compact and reliable high-power drivetrains. A variable-pole induction machine (IM) offers a viable magnet-free solution with distinct advantages, such as extended speed range and better utilization over all loading conditions compared to fixed-pole machines. From a power electronics perspective, a higher number of switching devices is needed to vary the IM pole count. This paper proposes a generalized framework that investigates the efficiency and sizing of a generalized modular multiphase inverter that drives a variable-pole IM. It explores how variable-pole operation benefits and constrains the drive. An experimental GaN-based 18-leg inverter driving a toroidally wound IM is used to validate the theory.

Original languageEnglish (US)
Title of host publicationAPEC 2020 - 35th Annual IEEE Applied Power Electronics Conference and Exposition
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages696-703
Number of pages8
ISBN (Electronic)9781728148298
DOIs
StatePublished - Mar 2020
Event35th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2020 - New Orleans, United States
Duration: Mar 15 2020Mar 19 2020

Publication series

NameConference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC
Volume2020-March

Conference

Conference35th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2020
CountryUnited States
CityNew Orleans
Period3/15/203/19/20

Keywords

  • Motor drive
  • electric vehicles
  • gallium nitride
  • induction machine
  • multiphase drive
  • pole changing
  • silicon carbide
  • transportation

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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  • Cite this

    Libbos, E., Hao, R., Ku, B., Banerjee, A., & Krein, P. T. (2020). Modular Multiphase Drives for Variable-Pole Induction Machines in Electric Vehicles. In APEC 2020 - 35th Annual IEEE Applied Power Electronics Conference and Exposition (pp. 696-703). [9124085] (Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC; Vol. 2020-March). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/APEC39645.2020.9124085