Reliable detection of induction motor rotor faults under the influence of rotor core magnetic anisotropy

Jose A. Antonino-Daviu, Joan Pons-Llinares, Sungsik Shin, Kun Wang Lee, Sang Bin Lee

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

13 Citations (Scopus)

Abstract

Motor Current Signature Analysis (MCSA) has become a popular test method for medium/high voltage induction motor rotor cage condition assessment in industry. However, cases of false alarms due to rotor core magnetic anisotropy resulting in unnecessary rotor inspection have recently been reported. In this paper, a method for testing the rotor under the startup transient based on the application of the Short Time Fourier Transform (STFT) is presented as a solution for averting anisotropy induced MCSA false alarms. An experimental study is performed on medium voltage motors operating in an oil refinery, and on custom built lab motor samples for verification of the proposed method. It is shown that the STFT based startup detection method provides reliable identification of rotor faults immune to the influence of magnetic anisotropy and external supply interference.

Original languageEnglish
Title of host publicationProceedings - SDEMPED 2015: IEEE 10th International Symposium on Diagnostics for Electrical Machines, Power Electronics and Drives
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages14-21
Number of pages8
ISBN (Print)9781479977437
DOIs
Publication statusPublished - 2015 Oct 21
Event10th IEEE International Symposium on Diagnostics for Electrical Machines, Power Electronics and Drives, SDEMPED 2015 - Guarda, Portugal
Duration: 2015 Sep 12015 Sep 4

Other

Other10th IEEE International Symposium on Diagnostics for Electrical Machines, Power Electronics and Drives, SDEMPED 2015
CountryPortugal
CityGuarda
Period15/9/115/9/4

Keywords

  • Electrical Fault Detection
  • Fault Diagnosis
  • Induction Motors
  • Magnetic Anisotropy
  • Rotors
  • Spectral Analysis
  • Wavelet Transforms

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

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