Stator current-based sensorless vibration monitoring of induction motors

Author

Riley, Caryn M. ; Lin, Brian K. ; Habetler, Thomas G. ; Kliman, Gerald B.

Author_Institution

Sch. of Electr. & Comput. Eng., Georgia Inst. of Technol., Atlanta, GA, USA

Volume

1

fYear

1997

fDate

23-27 Feb 1997

Firstpage

142

Abstract

This paper presents an initial study into the relationship between vibration and current harmonics of electric motors, including the effect of externally induced vibrations. This relationship was investigated experimentally on both new motors, on a vibration stand and on a motor with berating wear. Both theory and experimental results show that a change in the RMS value of the stator current is directly related to the change in vibration magnitude, for a known vibration frequency. The paper shows this result both for a new motor with an externally induced vibration and for a motor with vibration caused by progressive bearing wear

Keywords

electric current measurement; induction motors; machine testing; stators; vibration measurement; current harmonics; externally induced vibrations; induction motors; progressive bearing wear; sensorless vibration monitoring; stator current measurement; vibration frequency; vibration magnitude; vibration stand; Circuit faults; Computerized monitoring; Condition monitoring; Electric motors; Frequency; Induction motors; Mechanical sensors; Rotors; Stators; Vibration measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Applied Power Electronics Conference and Exposition, 1997. APEC '97 Conference Proceedings 1997., Twelfth Annual

Conference_Location

Atlanta, GA

Print_ISBN

0-7803-3704-2

Type

conf

DOI

10.1109/APEC.1997.581445

Filename

581445