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- Title
Adaptive finite-time control for a class of uncertain high-order non-linear systems based on fuzzy approximation.
- Authors
Honghong Wang; Bing Chen; Chong Lin; Yumei Sun; Fang Wang
- Abstract
The problem of adaptive practical finite-time control is considered for a class of single-input and single-output non-linear systems, in which the system non-linear functions are assumed to be unknown. By combining adaptive fuzzy control approach with the backstepping technology, a backstepping-based adaptive fuzzy finite-time control scheme is proposed. In the control design procedure, fuzzy logic systems are employed to identify the non-linear uncertainties. The stability analysis of the adaptive closed-loop systems is proposed based on the finite-time Lyapunov stability theory. The proposed adaptive fuzzy controller guarantees that all the closed signals are semi-global practical finite-time stability while the tracking error converges to a small neighbourhood of the origin. Finally, simulation results are presented to validate the effectiveness of our results.
- Subjects
ADAPTIVE control systems; NONLINEAR systems; FUZZY control systems; LYAPUNOV stability; LYAPUNOV functions
- Publication
IET Control Theory & Applications (Wiley-Blackwell), 2017, Vol 11, Issue 5, p677
- ISSN
1751-8644
- Publication type
Article
- DOI
10.1049/iet-cta.2016.0947