Comparative experimental investigation of broken bar fault detectability in induction motors

Konstantinos N. Gyftakis, Jose A. Antonino-Daviu, Raul Garcia-Hernandez, Malcolm McCulloch, David A. Howey, Antonio J.M. Cardoso

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

Abstract

It has been shown in the past that the zero-sequence current spectrum can be reliably used to detect broken bar faults in induction motors. Previous work was carried out with extensive FEM analysis. Although it allows detailed study of spatial and time-dependent electromagnetic characteristics of induction motors, FEM is a heavily time-consuming tool and this limits full study. So, in this work, extensive experimental testing has been performed to validate the zero sequence current spectrum for detecting rotor asymmetries. Three identical induction motors have been used: one healthy, one with a broken rotor bar, and one with two broken rotor bars. The motors were tested under different voltage supply levels and with different mechanical loads. The zero-sequence current spectrum was calculated after measuring the three phase currents. It is for the first time experimentally shown that this approach offers greater diagnostic potential than traditional MCSA.

Original languageEnglish
Title of host publicationProceedings - SDEMPED 2015
Subtitle of host publicationIEEE 10th International Symposium on Diagnostics for Electrical Machines, Power Electronics and Drives
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages461-467
Number of pages7
ISBN (Electronic)9781479977437
DOIs
Publication statusPublished - 21 Oct 2015
Event10th IEEE International Symposium on Diagnostics for Electrical Machines, Power Electronics and Drives, SDEMPED 2015 - Guarda, Portugal
Duration: 1 Sep 20154 Sep 2015

Conference

Conference10th IEEE International Symposium on Diagnostics for Electrical Machines, Power Electronics and Drives, SDEMPED 2015
CountryPortugal
CityGuarda
Period1/09/154/09/15

Keywords

  • Broken rotor bar
  • Fault diagnosis
  • Induction motor
  • Zero-sequence current

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