Multiple fault detection through information entropy analysis in ASD-fed induction motors

In this work broken rotor bars, misalignment, and unbalance are detected in induction motors powered by an adjustable speed drive (ASD) using the supply electric current information contents. The proposed methodology is implemented in a field programmable gate array offering a low-cost and portable...

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Bibliographic Details
Main Authors: Cabal-Yepez, E., Romero-Troncoso, Rene J., Garcia-Perez, A., Osornio-Rios, R. A., Alvarez-Salas, R.
Format: Conference Proceeding
Language:English
Subjects:
Adjustable speed drive
Bars
Field programmable gate arrays
Induction motors
Information entropy
Multiple fault diagnosis
Rotors
Stators
Variable speed drives
Velocity control
Online Access:Request full text
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Description
Summary:In this work broken rotor bars, misalignment, and unbalance are detected in induction motors powered by an adjustable speed drive (ASD) using the supply electric current information contents. The proposed methodology is implemented in a field programmable gate array offering a low-cost and portable solution for induction motor monitoring in real time. Results show that the introduced approach provides high detectability of treated faults at different rotational speed (30 Hz, 40 Hz, and 50 Hz) making it suitable for reliable online and continuous monitoring of the operational condition since control of the induction motor rotating speed through an ASD is a common practice in industry.
DOI:10.1109/DEMPED.2011.6063653