Detection of static eccentricity for permanent magnet synchronous motors using the coherence analysis

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Akar M., TAŞKIN S., Şeker Ş. S., Cankaya I.

Turkish Journal of Electrical Engineering and Computer Sciences, cilt.18, sa.6, ss.963-974, 2010 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 18 Sayı: 6
  • Basım Tarihi: 2010
  • Doi Numarası: 10.3906/elk-0911-298
  • Dergi Adı: Turkish Journal of Electrical Engineering and Computer Sciences
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, TR DİZİN (ULAKBİM)
  • Sayfa Sayıları: ss.963-974
  • Anahtar Kelimeler: Permanent Magnet Synchronous Motor, Eccentricity, Fault Diagnosis, Spectral Analysis
  • Manisa Celal Bayar Üniversitesi Adresli: Evet

Özet

This paper reports on work to detect the static eccentricity faults for permanent magnet synchronous motor (PMSM) using spectral analysis methods. Measurements are carried out by the collecting the stator current and voltage, torque and speed for healthy and faulty cases of the motor. Static eccentricity case is formed by changing the rotor position in the mannner of sliding the shaft on a horizontal axis. As a result of the spectral analysis for the motor currents, side band effects appeared at around the fundamental frequency are determined as a most important indicator of the eccentricity. In addition to this determination, the eccentricity problem is observed from the torque and rotor speed data comparing with each others as well as current and voltage variations. © TÜBİTAK.