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A Comparison of Sliding Mode and Unknown Input Observers for Fault Reconstruction.

By Christopher Edwards and Chee Pin Tan


Metadata only entryThis paper compares the use of a recently proposed sliding mode fault detection and isolation scheme with a linear scheme based on an unknown input observer. Both methods seek to reconstruct actuator and sensor fault signals for a class of uncertain systems. Although the explicit details of the two approaches are quite different, an underlying link between them is exposed and investigated. The methods are compared using a nonlinear model of a crane system in which known faults are deliberately introduced

Topics: Fault Detection, Sliding Modes, Observers, Unknown Input Observers
Publisher: Lavoisier (Hermes Science Publications)
Year: 2006
DOI identifier: 10.3166/ejc.12.245-260
OAI identifier: oai:lra.le.ac.uk:2381/9820
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