An Adaptive Control of Fractional-Order Nonlinear Uncertain Systems with Input Saturation

Changhui Wang, Mei Liang and Yongsheng Chai

Complexity, 2019, vol. 2019, 1-17

Abstract:

This paper develops a fractional-order adaptive fuzzy backstepping control scheme for incommensurate fractional-order nonlinear uncertain systems with external disturbances and input saturation. Based on backstepping algorithm, the fuzzy logic system is used to approximate the unknown nonlinear uncertainties in each step of the backstepping, and the fractional-order parameters update laws for fuzzy logic system, unknown parameters, and the external disturbances are proposed. With the aids of the frequency distributed model of fractional integrator for the fractional-order systems in the procedure of controller design, the stability of the closed-loop system is established. To verify the effectiveness and robustness of the proposed controller, two simulation examples are demonstrated at last.

Date: 2019
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Persistent link: https://EconPapers.repec.org/RePEc:hin:complx:5643298

DOI: 10.1155/2019/5643298

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