Separation of induction motor rotor faults and low frequency load oscillations through the radial leakage flux
Küçük Resim Yok
Tarih
2017
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Institute of Electrical and Electronics Engineers Inc.
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
This paper presents a separation method to discern broken rotor bar fault from low frequency load torque oscillation thorough radial leakage flux spectrums in induction motors (IMs). Broken rotor bar fault can usually be detected using classical motor current based analysis (MCSA), but it may not provide reliable results since its performance depend on motor topology, stator winding and load type. Particularly, if a motor is subjected to load fluctuation, then oscillation related signatures exhibit similar behavior that of broken bar which leads misleading signatures. In this paper, radial leakage flux spectrum is exhaustively analyzed thorough a fluxgate sensor to discern these two effects in IMs. It is shown that there are some additional characteristics broken bar signatures such as 3sfs and (fs-fr)A±2sfs in radial leakage flux which do not appear in low frequency load torque oscillation case. A 2-Dimensional (2D) finite element analysis and experiments are carried to show that using leakage flux can provide a separation method and more reliable results than classical MCSA in IMs. © 2017 IEEE.
Açıklama
IEEE Industry Applications Society (IAS);IEEE Power Electronics Society (PELS)
9th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2017 -- 1 October 2017 through 5 October 2017 -- 132274
9th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2017 -- 1 October 2017 through 5 October 2017 -- 132274
Anahtar Kelimeler
Broken rotor bar, Fault diagnosis, Fluxgate sensors, Leakage flux, Load torque oscillation
Kaynak
2017 IEEE Energy Conversion Congress and Exposition, ECCE 2017
WoS Q Değeri
Scopus Q Değeri
N/A
Cilt
2017-January
