The Influence of the Induction Motor Rotor Geometry on the Higher Harmonic Index of the Zero-Sequence Current

Konstantinos N. Gyftakis, J. A. Antonino-Daviu, J. C. Kappatou

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    Abstract

    Lately, a new diagnostic mean has been introduced for reliable fault diagnosis in delta-connected induction motors. This diagnostic mean is the zero-sequence current frequency spectrum. Since this diagnostic mean successfully answers to a variety of reliability demands, a thorough investigation of its harmonic index has to be performed as a function of the rotor geometry. In this work, FEM sinulations have been performed for motors of different rotor slot numbers and the zero-sequence current spectra are studied with the application of the FFT. Finally, experimental testing is applied to verify the simulations results.
    Original languageEnglish
    Publication statusPublished - 2 Feb 2017
    EventInternational Conference on Electrical Machines and Systems - Chiba, Japan
    Duration: 13 Nov 201616 Nov 2016

    Conference

    ConferenceInternational Conference on Electrical Machines and Systems
    Country/TerritoryJapan
    CityChiba
    Period13/11/1616/11/16

    Keywords

    • Finite element analysis
    • Harmonics
    • Induction Motor
    • Zero-sequence current

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