Abstract
In this paper, the design of first- and second-order sliding mode controllers for fractional-order nonlinear systems is addressed. The key concept used here is the diffusive representation of the fractional-order nonlinear systems. We show that the use of diffusive representation is an interesting alternative way to overcome some hard mathematical manipulations encountered with fractional-order operators. Sufficient reaching conditions to the sliding manifold are established for both first- and second-order sliding mode controllers. Numerical application to chaos control is given to illustrate the efficiency of the proposed approach.
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Bettayeb, M., Djennoune, S. Design of sliding mode controllers for nonlinear fractional-order systems via diffusive representation. Nonlinear Dyn 84, 593–605 (2016). https://doi.org/10.1007/s11071-015-2509-z
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DOI: https://doi.org/10.1007/s11071-015-2509-z