Title :
The fault detection problem in nonlinear systems
Author :
Martinez-Guerra, R. ; Garrido, R. ; Osorio-Mirón, A.
Author_Institution :
Dept. de Control Autom., CINVESTAV-IPN, Mexico City, Mexico
fDate :
June 30 2004-July 2 2004
Abstract :
In this work, high gain nonlinear observers are used as residual generators to study the fault detection problem in a differential algebraic framework. We analyze the stability of the residual generator when a fault occurs. We consider two faults types: constant and constant sign time-varying. It is shown that under some soft conditions over the aforementioned faults the residual is different from zero.
Keywords :
differential algebraic equations; fault diagnosis; nonlinear control systems; observers; stability; time-varying systems; constant sign time varying; differential algebraic method; fault detection problem; high gain nonlinear observers; nonlinear systems; residual generators; stability analysis;
Conference_Titel :
American Control Conference, 2004. Proceedings of the 2004
Conference_Location :
Boston, MA, USA
Print_ISBN :
0-7803-8335-4
