Influence of the Stator Windings Configuration in the Currents and Zero-Sequence Voltage Harmonics in Permanent Magnet Synchronous Motors With Demagnetization Faults

• Published in: IEEE transactions on magnetics Vol. 49; no. 8; pp. 4885 - 4893
• Main Authors: Urresty, Julio-Cesar, Riba, Jordi-Roger, Romeral, Luis
• Format: Journal Article
• Language: English
• Published: New York, NY IEEE 01.08.2013; Institute of Electrical and Electronics Engineers; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Coils; Coils (windings); Cross-disciplinary physics: materials science; rheology; Demagnetization; Electric potential; Exact sciences and technology; fault diagnosis; Faults; finite-elements analysis; Harmonic analysis; Harmonics; Magnetism; Materials science; Motors; Other topics in materials science; Permanent magnet motors; permanent magnet synchronous machine (PMSM); Permanent magnets; Physics; Spectra; Stator windings; Stators; Studies; Voltage; Windings; windings configuration; Finite element method; windings configuration; fault diagnosis; Synchronous motors; Permanent magnets; Modelling; finite-elements analysis; permanent magnet synchronous machine (PMSM); Synchronous machines; Demagnetization; Magnetic properties
• ISSN: 0018-9464; 1941-0069
• DOI: 10.1109/TMAG.2013.2247046

Demagnetization faults in permanent magnet synchronous motors may generate specific fault harmonic frequencies in the stator currents and the zero-sequence voltage component (ZSVC) spectra. Hence, by analyzing the stator currents or/and the ZSVC spectra it is possible to develop fault diagnosis schemes to detect such faults. In order to have a broad view of such effects, a representative set of stator windings configurations must be considered. By analyzing different stator windings configurations this paper shows that the amplitude of the harmonic frequencies of both the stator currents and the ZSVC spectrato be analyzed are significantly influenced by the stator windings configuration. It is also proved that depending on the winding configuration, new harmonic components may emerge in both spectra. The results presented in this paper may help to develop fault diagnosis schemes based on the acquisition and further analysis of the stator currents and the ZSVC harmonic components.