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Journal of applied research and technology
versión On-line ISSN 2448-6736versión impresa ISSN 1665-6423
Resumen
JOUILI, Khalil y BENHADJ BRAIEK, Naceur. A gradient descent control for output tracking of a class of non-minimum phase nonlinear systems. J. appl. res. technol [online]. 2016, vol.14, n.6, pp.383-395. ISSN 2448-6736. https://doi.org/10.1016/j.jart.2016.09.006.
In this paper we present a new approach to design the input control to track the output of a non-minimum phase nonlinear system. Therefore, a cascade control scheme that combines input-output feedback linearization and gradient descent control method is proposed. Therein, input-output feedback linearization forms the inner loop that compensates the nonlinearities in the input-output behavior, and gradient descent control forms the outer loop that is used to stabilize the internal dynamics. Exponential stability of the cascade-control scheme is provided using singular perturbation theory. Finally, numerical simulation results are presented to illustrate the effectiveness of the proposed cascade control scheme.
Palabras llave : Input-output feedback linearization; Non-minimum phase system; Singular perturbed system; Gradient descent control.