Observer-based robust control for singular switched fractional order systems subject to actuator saturation

2021 ◽  
Vol 411 ◽  
pp. 126538
Author(s):  
Zhe Wang ◽  
Dingyu Xue ◽  
Feng Pan
Keyword(s):  
Robust Control ◽  
Fractional Order ◽  
Actuator Saturation ◽  
Fractional Order Systems

Adaptive robust control of fractional-order systems with matched and mismatched disturbances

2019 ◽  
Vol 162 ◽  
pp. 85-96 ◽  
Author(s):  
Aldo Jonathan Muñoz-Vázquez ◽  
Manuel Benjamín Ortiz-Moctezuma ◽  
Anand Sánchez-Orta ◽  
Vicente Parra-Vega
Keyword(s):  
Robust Control ◽  
Fractional Order ◽  
Adaptive Robust Control ◽  
Fractional Order Systems ◽  
Mismatched Disturbances

Fractional-Order Nonlinear Disturbance Observer Based Control of Fractional-Order Systems

2018 ◽  
Vol 13 (7) ◽  
Author(s):  
Aldo Jonathan Muñoz-Vázquez ◽  
Vicente Parra-Vega ◽  
Anand Sánchez-Orta
Keyword(s):  
Robust Control ◽  
Fractional Order ◽  
Finite Time ◽  
Disturbance Observer ◽  
Continuous Control ◽  
Fractional Order Systems ◽  
Sliding Modes ◽  
Nonlinear Disturbance Observer ◽  
Nonlinear Disturbance ◽  
Dynamic Observer

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.

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