Sliding mode observers for fault detection and isolation

  • Authors:
  • Christopher Edwards;Sarah K. Spurgeon;Ron J. Patton

  • Affiliations:
  • Control Systems Research, Department of Engineering, University of Leicester, Leicester LE1 7RH, UK;Control Systems Research, Department of Engineering, University of Leicester, Leicester LE1 7RH, UK;Department of Electronic Engineering, University of Hull, Hull HU6 7RX, UK

  • Venue:
  • Automatica (Journal of IFAC)
  • Year:
  • 2000

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Abstract

This paper considers the application of a particular sliding mode observer to the problem of fault detection and isolation. The novelty lies in the application of the equivalent output injection concept to explicitly reconstruct fault signals. Previous work in the area of fault detection using sliding mode observers has used disruption of the sliding motion to detect faults. A design procedure is described and nonlinear simulation results are presented to demonstrate the approach.