Journal
NONLINEAR DYNAMICS
Volume 84, Issue 2, Pages 943-958Publisher
SPRINGER
DOI: 10.1007/s11071-015-2541-z
Keywords
Fuzzy logic systems (FLSs); Finite-time control; Adaptive control; Nonlinear systems; Uncertain systems; Mechanical systems
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Funding
- National Natural Science Foundation of China [61273120, 61074023]
- Jiangsu Scientific and Technological Support Plan [BE2012175]
- Postgraduate Innovation Project of Jiangsu Province [KYLX_0372]
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In this paper, an adaptive fuzzy finite-time control scheme is proposed for a class of nonlinear systems with unknown nonlinearities via backstepping technique. Fuzzy logic systems are employed to approximate the unknown continuous functions. Under some appropriate assumptions, it is proved that if the designed parameters in the controller and adaptive laws are suitably chosen, the proposed scheme can guarantee that the state of the closed-loop system converges to a small neighborhood of the origin in finite time. Moreover, the design strategy is successfully applied to solve the problem of finite-time tracking for a class of mechanical systems.
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