Pole pair and rotor slot number independent frequency domain based detection of eccentricity faults in induction machines using a semi on-line technique

S. Nandi, T. Ilamparithi, Sang Bin Lee, D. Hyun

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

8 Citations (Scopus)

Abstract

Eccentricity related faults in Induction motors have been studied extensively over the last few decades . They can exist in the form of static or dynamic eccentricity or both, in which case it is called a mixed eccentricity fault. These faults cause bearing damage, excessive vibration and noise, unbalanced magnetic pull (IMP) and under extreme conditions stator-rotor rub which may seriously damage the motors. Since eccentricity faults are often associated with large induction machines, the repair or replacement costs arising out of such a scenario may easily run into tens and thousands of dollars. Previous research have shown that it is extremely difficult to detect such faults if they appear individually, rather than in mixed form, unless the number of rotor bars and pole pair number conform to certain relationships. In this paper, it is shown that the terminal voltages of induction machines at switch-off reveal certain features that can lead to the detection of these faults in individual form, even in machines that do not show these signatures in line current spectrum in steady state.

Original languageEnglish
Title of host publication2009 IEEE International Symposium on Diagnostics for Electric Machines, Power Electronics and Drives, SDEMPED 2009
DOIs
Publication statusPublished - 2009 Dec 1
Event2009 IEEE International Symposium on Diagnostics for Electric Machines, Power Electronics and Drives, SDEMPED 2009 - Cargese, France
Duration: 2009 Aug 312009 Sep 3

Other

Other2009 IEEE International Symposium on Diagnostics for Electric Machines, Power Electronics and Drives, SDEMPED 2009
CountryFrance
CityCargese
Period09/8/3109/9/3

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Keywords

  • Eccentricity faults
  • Induction motor
  • Parameter independence

ASJC Scopus subject areas

  • Hardware and Architecture
  • Electrical and Electronic Engineering

Cite this

Nandi, S., Ilamparithi, T., Lee, S. B., & Hyun, D. (2009). Pole pair and rotor slot number independent frequency domain based detection of eccentricity faults in induction machines using a semi on-line technique. In 2009 IEEE International Symposium on Diagnostics for Electric Machines, Power Electronics and Drives, SDEMPED 2009 [5292793] https://doi.org/10.1109/DEMPED.2009.5292793