Title :
Sensor fault diagnosis and accommodation in nonlinear system
Author :
Ponsart, Jean-Christophe ; Join, Cedric ; Theilliol, Didier ; Sauter, Dominique
Author_Institution :
Centre de Rech. en Autom. de Nancy, Univ. Henri Poincare, Vandoeuvre-les-Nancy, France
Abstract :
In this paper, a sensor fault diagnosis and accommodation method is developed in nonlinear case. This method makes possible the sensor faults compensation. Its principle is based on the on-line detection, localization and estimation of a faulty element when a fault occurs on a nonlinear system. Then, a new control law is computed in order to compensate the fault effect on the system. The performances of the method are tested in simulation on a pilot plant: the three-tank benchmark.
Keywords :
compensation; control system synthesis; fault diagnosis; nonlinear control systems; sensors; accommodation method; nonlinear system; online detection; sensor fault compensation; sensor fault diagnosis; three-tank benchmark; Equations; Fault detection; Mathematical model; Nonlinear systems; Observers; Vectors; fault accommodation; fault diagnosis; fault estimation; nonlinear system; three-tank system;
Conference_Titel :
Control Conference (ECC), 2001 European
Conference_Location :
Porto
Print_ISBN :
978-3-9524173-6-2
