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Analytical modeling of inter-turn short circuit for multiphase fault-tolerant PM machines with fractional-slot concentrated windings

  • Harbin Institute of Technology
  • University of Wisconsin-Madison

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

Abstract

Inter-turn short-circuit faults that occur inside stator coils are difficult to cope with compared to terminal short-circuit faults. A general analytical model for inter-turn short-circuit faults is developed that employs a novel T-type equivalent circuit. When this model is used to investigate the impact of inter-turn short-circuit faults in PM machines with fractional-slot concentrated windings (FSCW), the model delivers fault response predictions that agree very well with results from finite element (FE) analysis. The model is used to show that the 24-slot/14-pole FSCW PM machine is vulnerable to very high inter-turn fault currents even when the remaining turns are shorted, offsetting its advantage of low magnetic coupling between phases.

Original languageEnglish
Title of host publication2015 IEEE Energy Conversion Congress and Exposition, ECCE 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages6970-6977
Number of pages8
ISBN (Electronic)9781467371506
DOIs
StatePublished - 27 Oct 2015
Event7th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2015 - Montreal, Canada
Duration: 20 Sep 201524 Sep 2015

Publication series

Name2015 IEEE Energy Conversion Congress and Exposition, ECCE 2015

Conference

Conference7th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2015
Country/TerritoryCanada
CityMontreal
Period20/09/1524/09/15

Keywords

  • Analytical modeling
  • fault tolerance
  • inter-turn short circuit
  • multiphase machine
  • turn-to-turn short circuit

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