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A bounded-error approach to simultaneous state and actuator fault estimation for a class of nonlinear systems

Author
Buciakowski, M.; Witczak, M.; Puig, V.; Rotondo, D.; Nejjari, F.; Korbicz, J.
Type of activity
Journal article
Journal
Journal of process control
Date of publication
2017-04-01
Volume
52
First page
14
Last page
25
DOI
https://doi.org/10.1016/j.jprocont.2017.01.002 Open in new window
Repository
http://hdl.handle.net/2117/115902 Open in new window
URL
http://www.sciencedirect.com/science/article/pii/S0959152417300124 Open in new window
Abstract
This paper proposes an approach for the joint state and fault estimation for a class of uncertain nonlinear systems with simultaneous unknown input and actuator faults. This is achieved by designing an unknown input observer combined with a set-membership estimation in the presence of disturbances and measurement noise. The observer is designed using quadratic boundedness approach that is used to overbound the estimation error. Sufficient conditions for the existence and stability of the propose...
Citation
Buciakowski, M., Witczak, M., Puig, V., Rotondo, D., Nejjari, F., Korbicz, J. A bounded-error approach to simultaneous state and actuator fault estimation for a class of nonlinear systems. "Journal of process control", 1 Abril 2017, vol. 52, p. 14-25.
Keywords
Bounded-error estimation, Fault detection, Fault isolation, Nonlinear systems, Observer, Quadratic boundedness
Group of research
CS2AC-UPC - Supervision, Safety and Automatic Control
SAC - Advanced Control Systems

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