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Diagnostics of Interior PM Machine Rotor Faults Based on EMF Harmonics

Author

Listed:
  • Natalia Radwan-Pragłowska

    (Faculty of Electrical and Computer Engineering, Cracow University of Technology, Warszawska 24 St., 31-155 Cracow, Poland)

  • Tomasz Wegiel

    (Faculty of Electrical and Computer Engineering, Cracow University of Technology, Warszawska 24 St., 31-155 Cracow, Poland)

Abstract

This article presents a detailed study on the diagnosis of rotor faults in an Interior Permanent Magnet Machine based on a mathematical model. The authors provided a wide literature review, mentioning the fault diagnosis methods used for Permanent Magnet Machines. The research emphasizes the necessity of precise assumptions regarding winding construction to accurately analyze the additional harmonics appearing in rotor faults caused by electromotive force (EMF), i.e., rotor eccentricity and magnet damage. The article also discusses specific features appearing in the spectrum of air gap permeance functions and the impact of rotor eccentricity and magnet damage on PM flux density distribution and as a consequence on EMF stator windings. The novelty of the presented content is the analysis of induced EMFs for cases of the simultaneous occurrence of rotor eccentricity and PM damage. The findings of this study provide valuable insights for the diagnosis and understanding of internal asymmetries in Interior PM Machines.

Suggested Citation

  • Natalia Radwan-Pragłowska & Tomasz Wegiel, 2024. "Diagnostics of Interior PM Machine Rotor Faults Based on EMF Harmonics," Energies, MDPI, vol. 17(9), pages 1-22, May.
    • Handle: RePEc:gam:jeners:v:17:y:2024:i:9:p:2198-:d:1388195
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    References listed on IDEAS

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    1. Syidy Ab Rasid & Konstantinos N. Gyftakis & Markus Mueller, 2023. "Comparative Investigation of Three Diagnostic Methods Applied to Direct-Drive Permanent Magnet Machines Suffering from Demagnetization," Energies, MDPI, vol. 16(6), pages 1-18, March.
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