Title :
Residual evaluation using time-frequency analysis for fault detection and isolation
Author :
Kabbaj, N. ; Doncescu, A. ; Dahhou, B. ; Roux, G. ; Polit, M.
Author_Institution :
LP2A, Perpignan, France
Abstract :
The aim of the paper is to study the adaptive observer based fault detection and isolation with an emphasis on robustness to measurement noise. We develop a robust residual evaluation method based on time-frequency analysis. Our approach is tested in simulation on an alcoholic fermentation process. The faults are modelled as changes in the system parameters and residuals are generated using a set of adaptive observers.
Keywords :
adaptive estimation; fault diagnosis; fermentation; observers; time-frequency analysis; adaptive observer; alcoholic fermentation process; biotechnological process; fault detection; fault isolation; residual evaluation; robustness; time-frequency analysis; Actuators; Alcoholism; Biosensors; Fault detection; Noise robustness; Observers; Sensor systems; Signal analysis; Testing; Time frequency analysis;
Conference_Titel :
Systems, Man and Cybernetics, 2002 IEEE International Conference on
Print_ISBN :
0-7803-7437-1
DOI :
10.1109/ICSMC.2002.1175742
