Reliable Detection of Rotor Bars Breakage in Induction Motors via MUSIC and ZSC

Daniel Morinigo-Sotelo, Rene De J. Romero-Troncoso, Panagiotis A. Panagiotou, Jose A. Antonino-Daviu, Konstantinos N. Gyftakis*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract / Description of output

Induction motors are used in a variety of industrial applications where frequent startup cycles are required. In those cases, it is necessary to apply sophisticated signal processing analysis methods in order to reliably follow the time evolution of fault-related harmonics in the signal. In this paper, the zero-sequence current (ZSC) is analyzed using the high-resolution spectral method of multiple signal classification. The analysis of the ZSC signal has proved to have several advantages over the analysis of a single-phase current waveform. The method is validated through simulation and experimental results. The simulations are carried out for a 1.1-MW and a 4-kW induction motors under finite element analysis. Experimentation is performed on a healthy motor, a motor with one broken rotor bar, and a motor with two broken rotor bars. The analysis results are satisfactory since the proposed methodology reliably detects the broken rotor bar fault and its severity, both during transient and steady-state operation of the induction motor.

Original languageEnglish
Pages (from-to)1224-1234
Number of pages11
JournalIEEE Transactions on Industry Applications
Issue number2
Early online date18 Oct 2017
Publication statusPublished - 1 Mar 2018

Keywords / Materials (for Non-textual outputs)

  • Broken bar
  • fault diagnosis
  • induction motor
  • multiple signal classification (MUSIC)
  • zero-sequence current (ZSC)


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