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- Title
Robust fault estimation observer design with finite‐time convergence specification.
- Authors
Zhang, Ke; Jiang, Bin; Cocquempot, Vincent
- Abstract
In this study, the problem of fault estimation observer design with finite‐time convergence specification for continuous‐time dynamic systems subject to external disturbances. First, the unknown input observer is constructed to achieve accurate estimation of the occurred fault and to guarantee robustness against the disturbance. Then a pole placement‐based fault estimation observer is constructed using time‐delay design such that the fault estimation error converges to zero in finite time. Unlike conventional literatures, the proposed fault estimator with finite‐time convergence specification does not contain discontinuous sign function. Finally, simulation results of an aircraft application are presented to illustrate the finite‐time convergence of the proposed fault estimation observer.
- Publication
IET Control Theory & Applications (Wiley-Blackwell), 2017, Vol 11, Issue 2, p1
- ISSN
1751-8644
- Publication type
Article
- DOI
10.1049/iet-cta.2016.0200