Title :
Fault diagnosis in a hydraulic process using unknown input observers
Author :
Gaddouna, B.O. ; Ouladsine, M.
Author_Institution :
Lab. des Syst. Autom., Amiens, France
Abstract :
In this paper, an approach for the design of unknown input observers is developed to estimate the state of a linear time-invariant dynamical system driven by both known and unknown inputs. The method has been applied on a real hydraulic installation in order to detect and localize actuator faults.
Keywords :
actuators; control system synthesis; fault diagnosis; hydraulic systems; linear systems; observers; state estimation; actuator fault detection; actuator fault localization; fault diagnosis; hydraulic process; known inputs; linear time-invariant dynamical system; observer matrix computation; state estimation; unknown input observer design; Equations; Fault detection; Fault diagnosis; Hydraulic actuators; Observers; State estimation; Vectors;
Conference_Titel :
Control Applications, 1997., Proceedings of the 1997 IEEE International Conference on
Conference_Location :
Hartford, CT, USA
Print_ISBN :
0-7803-3876-6
DOI :
10.1109/CCA.1997.627702
