Winding turn-to-turn faults in permanent magnet synchronous machine drives

Chris Gerada, Keith Bradley, Mark Sumner

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

45 Citations (Scopus)

Abstract

This paper examines the effect of different numbers of shorted turns in one coil of the stator winding upon the operation of vector-controlled Permanent Magnet Synchronous Machine Drives. A simple thermal model of the coil is used to examine the duration the fault can be allowed to exist before there is further degradation of the insulation. Simulation results by DMRM incorporate saturation and slotting effects. Short circuit current is difficult to limit due to the uncontrolled permanent magnet produced field. Permanent Magnets are also prone to demagnetization due to the compound effect of the demagnetising MMF produced by the high short circuit current together with the armature reaction MMF. Shorting small numbers of turns gives very little time before further failures could occur. Shorts of large numbers of turns change machine flux levels, saturation and torque constant. Part functionality following a winding fault might aid controlled, drive shutdown or keep up operation in intermittent, short duration, load cycles.

Original languageEnglish
Title of host publicationConference Record of the 2005 IEEE Industry Applications Conference, 40th IAS Annual Meeting
Pages1029-1036
Number of pages8
DOIs
Publication statusPublished - 2005
Externally publishedYes
Event2005 IEEE Industry Applications Conference, 40th IAS Annual Meeting - Kowloon, Hong Kong, China
Duration: 2 Oct 20056 Oct 2005

Publication series

NameConference Record - IAS Annual Meeting (IEEE Industry Applications Society)
Volume2
ISSN (Print)0197-2618

Conference

Conference2005 IEEE Industry Applications Conference, 40th IAS Annual Meeting
Country/TerritoryChina
CityKowloon, Hong Kong
Period2/10/056/10/05

Keywords

  • Aircraft actuators
  • Fault tollerance
  • Modeling
  • PMSM
  • Turn-to-turn faults

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Industrial and Manufacturing Engineering
  • Electrical and Electronic Engineering

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