Observer-based adaptive stabilization of the fractional-order chaotic MEMS resonator
Nonlinear Dynamics, ISSN: 1573-269X, Vol: 92, Issue: 3, Page: 1079-1089
2018
- 30Citations
- 18Captures
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Article Description
Compared to the integer-order chaotic MEMS resonator, the fractional-order system can better model its hereditary properties and exhibit complex dynamical behavior. Following the increasing attention to adaptive stabilization in controller design, this paper deals with the observer-based adaptive stabilization issue of the fractional-order chaotic MEMS resonator with uncertain function, parameter perturbation, and unmeasurable states under electrostatic excitation. To compensate the uncertainty, a Chebyshev neural network is applied to approximate the uncertain function while its weight is tuned by a parametric update law. A fractional-order state observer is then constructed to gain unmeasured feedback information and a tracking differentiator based on a super-twisting algorithm is employed to avoid repeated derivative in the framework of backstepping. Based on the Lyapunov stability criterion and the frequency-distributed model of the fractional integrator, it is proved that the adaptive stabilization scheme not only guarantees the boundedness of all signals, but also suppresses chaotic motion of the system. The effectiveness of the proposed scheme for the fractional-order chaotic MEMS resonator is illustrated through simulation studies.
Bibliographic Details
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=85041898826&origin=inward; http://dx.doi.org/10.1007/s11071-018-4109-1; http://link.springer.com/10.1007/s11071-018-4109-1; http://link.springer.com/content/pdf/10.1007/s11071-018-4109-1.pdf; http://link.springer.com/article/10.1007/s11071-018-4109-1/fulltext.html; https://dx.doi.org/10.1007/s11071-018-4109-1; https://link.springer.com/article/10.1007/s11071-018-4109-1
Springer Nature
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