Choice of Phase Number for a Multiphase Traction Motor to Meet Requirements on Fault Tolerance

Jorg Kammermann, Igor Bolvashenkov, Jon Lekuona Ugalde, Hans Georg Herzog

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

12 Scopus citations

Abstract

The electrification of vehicles and their autonomous operation is a current topic. The resulting high requirements on reliability for safety-critical applications leads to the need of fault tolerance in order to provide fail-operational modes. One possibility to increase fault tolerance of electric traction drives is increasing the number of phases of the machine, since a performance degradation is possible while using multiple phases. This paper targets a method to find the optimal number of phases considering fault tolerance based on the requirements on system performance. It is shown that a higher phase number is not always the best choice regarding fault tolerance and reliability. This fact is depending on the performance demand after failure required in order to assure a fail-operational mode.

Original languageEnglish
Title of host publicationProceedings - ICOECS 2019
Subtitle of host publication2019 International Conference on Electrotechnical Complexes and Systems
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781728117287
DOIs
StatePublished - Oct 2019
Event2019 International Conference on Electrotechnical Complexes and Systems, ICOECS 2019 - Ufa, Russian Federation
Duration: 22 Oct 201925 Oct 2019

Publication series

NameProceedings - ICOECS 2019: 2019 International Conference on Electrotechnical Complexes and Systems

Conference

Conference2019 International Conference on Electrotechnical Complexes and Systems, ICOECS 2019
Country/TerritoryRussian Federation
CityUfa
Period22/10/1925/10/19

Keywords

  • electric drive trains
  • electric vehicle
  • electrical machines
  • fail-operational
  • fault tolerance
  • multiphase
  • performance degradation
  • reliability
  • safety-critical

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