Title :
HOSM driven output tracking in the nonminimum-phase causal nonlinear systems
Author :
Baev, S. ; Shtessel, Y. ; Shkolnikov, I.
Author_Institution :
Alabama Univ., Huntsville
Abstract :
Asymptotic output tracking in a class of causal nonminimum-phase uncertain nonlinear systems is addressed via higher order sliding modes. Local asymptotic stability of the output tracking-error dynamics is provided. An output reference profile and an external disturbance forcing the internal dynamics are defined by an unknown linear exosystem. Its characteristic polynomial (which is used in the output-tracking control algorithm) is identified online by using a higher order sliding mode parameter observer. The input-output dynamics is compensated by higher order sliding mode (HOSM) control. A numerical example illustrates the performance of the developed HOSM control algorithm.
Keywords :
asymptotic stability; compensation; linear systems; nonlinear control systems; observers; polynomials; uncertain systems; variable structure systems; HOSM driven output tracking; asymptotic output tracking; asymptotic stability; causal nonminimum-phase; compensation; error dynamics; higher order sliding mode control; input-output dynamics; nonlinear system; observer; polynomial; uncertain system; unknown linear exosystem; Asymptotic stability; Control systems; Electronic mail; Nonlinear control systems; Nonlinear dynamical systems; Nonlinear systems; Polynomials; Sliding mode control; USA Councils; Uncertain systems;
Conference_Titel :
Decision and Control, 2007 46th IEEE Conference on
Conference_Location :
New Orleans, LA
Print_ISBN :
978-1-4244-1497-0
Electronic_ISBN :
0191-2216
DOI :
10.1109/CDC.2007.4434403
