Fractional-Order Nonlinear Disturbance Observer Based Control of Fractional-Order Systems Academic Article uri icon


  • The robust control for a class of disturbed fractional-order systems is presented in this paper. The proposed controller considers a dynamic observer to exactly compensate for matched disturbances in finite time, and a procedure to compensate for unmatched disturbances is then derived. The proposed disturbance observer is built upon continuous fractional sliding modes, producing a fractional-order reaching phase, leading to a continuous control signal, yet able to reject for some continuous but not necessarily differentiable disturbances. Numerical simulations and comparisons are presented to highlight the reliability of the proposed scheme.

author list (cited authors)

  • Muñoz-Vázquez, A. J., Parra-Vega, V., & Sánchez-Orta, A.

citation count

  • 1

publication date

  • July 2018