Abstract:
In this paper, we propose an on-line monitoring scheme to detect broken rotor bars on IFOC driven squirrel cage induction motors. The drive's variable speed nature compli...Show MoreMetadata
Abstract:
In this paper, we propose an on-line monitoring scheme to detect broken rotor bars on IFOC driven squirrel cage induction motors. The drive's variable speed nature complicates the use of classical spectrum analysis techniques. The proposed model-based monitoring scheme does not rely on spectral methods; instead, it monitors, a carefully selected induction motor state, using an on-line observer. The key to fault detection is the development of a simplified dynamic model of a squirrel cage induction motor with broken rotor bars, and the selection, based on techniques from differential geometric theory, of the induction motor state to monitor. Numerical simulations of very different motors validate the model and the monitoring scheme.
Published in: Proceedings of the 2004 American Control Conference
Date of Conference: 30 June 2004 - 02 July 2004
Date Added to IEEE Xplore: 02 May 2005
Print ISBN:0-7803-8335-4
Print ISSN: 0743-1619