Residual Signal-Based Experimental Approach for Early Detection of Rotor Winding Asymmetry in Wound-Rotor Induction Machines
Hamza SABIR, Mohammed OUASSAID, Nabil NGOTE, Mourad YESSEF
Abstract. This paper presents a residual electrical signal extraction (RESE) technique that can be used to quickly identify rotor winding asymmetry (RWA) in wound rotor induction machines (WRIMs). Inspired by techniques described in vibration analysis, the proposed method consists of processing the stator current signals in order to extract the residual signals and isolate the fault signatures normally masked by the dominant fundamental frequency. Unlike conventional methods, the RESE technique works satisfactorily under no-load conditions without additional sensors. experimental results confirm the reliability of the method by demonstrating that rotor winding asymmetries as low as 3 to 10% can be reliably determined. The RESE method therefore offers a non-intrusive, cost-effective, and accurate solution for condition monitoring and preventive maintenance of WRIMs.
Keywords
Condition Monitoring, Residual Electrical Signal Extraction, Rotor Winding Asymmetry, Fault Diagnosis, Wound-Rotor Induction Machines
Published online 4/25/2026, 8 pages
Copyright © 2026 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA
Citation: Hamza SABIR, Mohammed OUASSAID, Nabil NGOTE, Mourad YESSEF, Residual Signal-Based Experimental Approach for Early Detection of Rotor Winding Asymmetry in Wound-Rotor Induction Machines, Materials Research Proceedings, Vol. 64, pp 241-248, 2026
DOI: https://doi.org/10.21741/9781644904091-30
The article was published as article 30 of the book Energy Futures
Content from this work may be used under the terms of the Creative Commons Attribution 3.0 license. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.
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