Adaptive Fuzzy Control for Fractional-Order Nonlinear System with Unknown Dead Zone

In this paper, an adaptive fuzzy backstepping dynamic surface control (DSC) scheme is proposed for fractional-order nonlinear systems (FONSs) in strict-feedback form with external disturbances and unknown dead zone. Fuzzy logic systems (FLSs) are utilized to approximate unknown nonlinear functions....

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Bibliographic Details
Published in2020 7th International Conference on Information, Cybernetics, and Computational Social Systems (ICCSS) pp. 235 - 241
Main Authors Zhan, Yongliang, Tong, Shaocheng
Format Conference Proceeding
LanguageEnglish
Published IEEE 13.11.2020
Subjects
Adaptive systems
Approximation error
Backstepping
Closed loop systems
DSC
Fractional-order system
Fuzzy control
Fuzzy logic
Nonlinear systems
unknown dead zone
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Summary:In this paper, an adaptive fuzzy backstepping dynamic surface control (DSC) scheme is proposed for fractional-order nonlinear systems (FONSs) in strict-feedback form with external disturbances and unknown dead zone. Fuzzy logic systems (FLSs) are utilized to approximate unknown nonlinear functions. By utilizing the DSC to avoid the inherent problem of 'explosion of complexity' in the backstepping technique, at the same time, constructing the dead zone inverse to compensate for the dead zone effect. Finally, the raised method can ensure that all the signals of the fractional-order closed-loop system are bounded, and the tracking error becomes arbitrarily small.
ISSN:2639-4235
DOI:10.1109/ICCSS52145.2020.9336873