2016 |
Elhsoumi, A.; Ali, S. B. H.; Harabi, R. El; Abdelkrim, M. N. Unknown input fault detection and isolation observer design for neutral systems Article de journal Dans: Asian Journal of Control, vol. 18, no. 5, p. 1825-1835, 2016, ISSN: 15618625, (cited By 19). Résumé | Liens | BibTeX | Étiquettes: Actuator fault detection; Decoupling properties; Diagnosis performance; External disturbances; Fault detection and isolation; Lyapunov stability theory; Multiple delays; Unknown input observer, Actuators; Asymptotic stability; Linear matrix inequalities; Robustness (control systems), Fault detection @article{Elhsoumi20161825,This paper deals with actuator fault diagnosis of neutral delayed systems with multiple time delays using an unknown input observer. The main purpose is to design an observer that guarantees the asymptotic stability of the estimate error dynamics and the actuator fault detection. The existence conditions for such an observer are established. The main problem studied in this paper aims at designing observer-based fault detection and isolation. The designed observer enhances the robust diagnosis performance, including rapidity and accuracy, and generates residuals that enjoy perfect decoupling properties among faults. Based on Lyapunov stability theory, the design of the observer is formulated in terms of linear matrix inequalities, and the diagnosis scheme is based on a bank of unknown input observers for residual generation that guarantees fault detection and isolation in the presence of external disturbances. A numerical example is presented to illustrate the efficiency of the proposed approach. © 2016 Chinese Automatic Control Society and John Wiley & Sons Australia, Ltd. |
Publications
2016 |
Unknown input fault detection and isolation observer design for neutral systems Article de journal Dans: Asian Journal of Control, vol. 18, no. 5, p. 1825-1835, 2016, ISSN: 15618625, (cited By 19). |