Robust detection of rotor winding asymmetries in wound rotor induction motors via integral current analysis

Jose Antonino-Daviu, Alfredo Quijano-López, Vicente Climente-Alarcon, Carlos Garín-Abellán

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

1 Citation (Scopus)


Current analysis has been widely employed in academy and industry for the diagnosis of rotor damages in cage induction motors. The conventional approach based on the FFT analysis of steady-state current (MCSA) has been recently complemented with the development of alternative techniques that rely on the time-frequency analysis of transient quantities of the machine. These techniques may bring important advantages that are related to the avoidance of eventual false indications provided by the classical MCSA. Moreover, their application is also suitable for variable speed conditions. However, the application of current-based methodologies to wound rotor induction motors (WRIM) has been much less studied and, hence, their validation in field WRIM is scarce. The present work proposes the application of an integral methodology based on the analysis of both stationary and transient currents for the diagnosis of winding asymmetries in WRIM. The method, based on up to five different fault evidences, is validated in laboratory motors and it is subsequently applied to a large field motor (1,500 kW) that was showing signs of abnormal rotor functioning. The results prove that the method is of interest for the field since it helps to ratify without ambiguity the existence of eventual asymmetries in the rotor windings, with no interference with the machine operation. However, due to the complex constructive nature of the rotor winding as well as the presence of auxiliary systems (slip rings, brushes, contactors, etc...), once the fault presence is detected, it may be interesting the utilization of complementary tools to accurately locate the root cause of the asymmetry.

Original languageEnglish
Title of host publicationECCE 2016 - IEEE Energy Conversion Congress and Exposition, Proceedings
ISBN (Electronic)9781509007370
Publication statusPublished - 13 Feb 2017
MoE publication typeA4 Article in a conference publication
EventIEEE Energy Conversion Congress and Exposition - Milwaukee, United States
Duration: 18 Sep 201622 Sep 2016
Conference number: 8

Publication series

NameIEEE Energy Conversion Congress and Exposition
ISSN (Print)2329-3721
ISSN (Electronic)2329-3748


ConferenceIEEE Energy Conversion Congress and Exposition
Abbreviated titleECCE
Country/TerritoryUnited States


  • fault diagnosis
  • indcution motors
  • transient analysis
  • wavelet transforms
  • wound rotor


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