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Threshold Selector for Fault Detection on Closed-Loop Predictor-Based Recursive System Identification

[+] Author Affiliations
Young-Man Kim

University of Michigan-Flint, Flint, MI

Paper No. IMECE2014-36157, pp. V04BT04A002; 4 pages
doi:10.1115/IMECE2014-36157
From:
  • ASME 2014 International Mechanical Engineering Congress and Exposition
  • Volume 4B: Dynamics, Vibration, and Control
  • Montreal, Quebec, Canada, November 14–20, 2014
  • Conference Sponsors: ASME
  • ISBN: 978-0-7918-4648-3
  • Copyright © 2014 by ASME

abstract

In this research, predictor-based system identification is recursively implemented to identify system in closed-loop, which has been connected with proper threshold setting for fault detection. The predictor-based system identification technique is based on the assumption that the process and measurement noise is white. This paper shows how recursive system identification is connected with fault detection, which can remove the influence of noise. The effectiveness is demonstrated for recursive system identification combined with proper threshold setting via Matlab simulation.

Copyright © 2014 by ASME
Topics: Flaw detection

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