Introduction of the Zero-Sequence Stray Flux as a Reliable Diagnostic Method of Rotor Electrical Faults in Induction Motors

Konstantinos N. Gyftakis, P. A. Panagiotou, E. Palomeno, Sang Bin Lee

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

2 Citations (Scopus)

Abstract

Lately, the zero-sequence current has been proposed for reliable detection of faults in induction motors. The zero-sequence current offers some distinct advantages compared to traditional methods, one of which is that it is able to detect a variety of faults with a single analysis. Despite its numerous advantages, the zero-sequence current has one significant drawback; it can only be applied to delta-connected induction motors or star-connected with the stator neutral connected to the supply. However, in many industrial cases, the large induction motors are connected in star without the neutral connected, to avoid extra losses. In those cases, the zero-sequence current method cannot be applied as the zero-sequence current simply does not exist. To overcome this drawback, this paper proposes for the first time the use of the zero-sequence stray flux for the detection of induction motor rotor electrical faults. It will be shown that the zero-sequence flux carries all the advantages of the zero-sequence current, while it can be applied to any 3-phase electrical machine independently from the stator winding configuration.

Original languageEnglish
Title of host publicationProceedings
Subtitle of host publicationIECON 2019 - 45th Annual Conference of the IEEE Industrial Electronics Society
PublisherIEEE Computer Society
Pages6016-6021
Number of pages6
ISBN (Electronic)9781728148786
DOIs
Publication statusPublished - 2019 Oct
Event45th Annual Conference of the IEEE Industrial Electronics Society, IECON 2019 - Lisbon, Portugal
Duration: 2019 Oct 142019 Oct 17

Publication series

NameIECON Proceedings (Industrial Electronics Conference)
Volume2019-October

Conference

Conference45th Annual Conference of the IEEE Industrial Electronics Society, IECON 2019
Country/TerritoryPortugal
CityLisbon
Period19/10/1419/10/17

Keywords

  • Condition monitoring
  • Fault diagnosis
  • Induction machines
  • Rotor faults
  • Zero-sequence flux

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Electrical and Electronic Engineering

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