Fault detection and isolation for nonlinear systems via high-order-sliding-mode multiple-observer
International Journal of Robust and Nonlinear Control
John Wiley and Sons Ltd
Copyright © 2014 John Wiley & Sons, Ltd. This is the peer reviewed version of the following article: Ríos, H., Davila, J., Fridman, L., and Edwards, C. (2015) Fault detection and isolation for nonlinear systems via high-order-sliding-mode multiple-observer. Int. J. Robust. Nonlinear Control, 25: 2871–2893. doi: 10.1002/rnc.3232., which has been published in final form at http://onlinelibrary.wiley.com/doi/10.1002/rnc.3232/abstract. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving.
Summary In this paper, fault detection and isolation problems are studied for a certain class of nonlinear systems. Under some structural conditions, multiple high-order sliding-mode observers are proposed. The value of the equivalent output injection is used for detecting faults and the multiple-model approach for isolating particular faults in the system. The proposed method provides fast detection and isolation of actuator and plant faults. Simulation results support the proposed approach.
CONACyT 56819, 151855, and 270504
Vol. 25, Iss.16, pp. 2871 - 2893, 10 November 2015