Discerning broken rotor bar failure from low-frequency load torque oscillation in DTC induction motor drives
Küçük Resim Yok
Tarih
2018
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Sage Publications Ltd
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
This paper proposes a method for separation of broken rotor bar failures from low-frequency load torque oscillation in direct torque control (DTC) induction motor drives by using v(q) voltage and i(q) current components' spectra. The effect of load torque oscillation should be considered in induction motor drives for reliable broken bar fault detection. Induction machine drivers are run in DTC mode to control its torque and speed. In practice, the presence of load torque fluctuation may sometimes cause false positive alarms on stator current spectrum. However, discerning of broken rotor bar failure from low-frequency load variation for DTC drives remains unexplored. Experimental results show that by using the proposed method broken rotor bar failure can be reliably detected in the presence of low-frequency load torque oscillation in DTC induction motor drives.
Açıklama
Anahtar Kelimeler
Broken rotor bar, direct torque control, fault detection, fault diagnosis, induction motor, load torque oscillation
Kaynak
Transactions of The Institute of Measurement and Control
WoS Q Değeri
Q3
Scopus Q Değeri
Q2
Cilt
40
Sayı
1
