Title :
Fault diagnosis in nonlinear dynamical systems based on left invertibility condition: A real-time application to three-tank system
Author :
Mata-Machuca, J.L. ; Martinez-Guerra, R. ; Rincon-Pasaye, J.J.
Author_Institution :
Dept. of Autom. Control, Center for Adv. Studies & Res. of the Nat. Polytech. Inst. (CINVESTAV-IPN), Mexico City, Mexico
fDate :
June 29 2011-July 1 2011
Abstract :
This work deals with the fault diagnosis problem, some new properties are found using the left invertibility condition through the concept of differential output rank. Two schemes of nonlinear observers are used to estimate the fault signals for comparison purposes, one of these is a reduced order observer and the other is a sliding mode observer. The methodology is tested in a real time implementation of a three tank system.
Keywords :
fault diagnosis; nonlinear dynamical systems; observers; reduced order systems; variable structure systems; differential output rank concept; fault diagnosis problem; left invertibility condition; nonlinear dynamical systems; nonlinear observers; reduced order observer; sliding mode observer; three-tank system; Convergence; Differential equations; Fault diagnosis; Nonlinear systems; Observability; Observers;
Conference_Titel :
American Control Conference (ACC), 2011
Conference_Location :
San Francisco, CA
Print_ISBN :
978-1-4577-0080-4
DOI :
10.1109/ACC.2011.5990778
