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Robust fault detection filters for a class of MIMO uncertain sampled-data systems

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4 Author(s)
Corradini, M.L. ; Scuola di Sci. e Tecnol., Univ. di Camerino, Camerino, Italy ; Cristofaro, A. ; Giambo, R. ; Pettinari, S.

This paper addresses the robust (in the disturbance de-coupling sense) design problem of fault detection filters for uncertain sampled data systems. The only available signal is the output variable. A novel reduced-order unknown-input observer is proposed such that both the estimation error and the state vector vanish asymptotically, robustly with respect to disturbances affecting the continuous-time system. A test-function reveals the occurrence of actuator faults in the plant. An application to a three tank system is displayed.

Published in:

Control and Fault-Tolerant Systems (SysTol), 2010 Conference on

Date of Conference:

6-8 Oct. 2010