Title :
Robust second order sliding mode controller for nonlinear hydraulic system
Author :
Benayache, R. ; Mahmoud, S. Mahieddine ; Dovifaaz, X. ; Chrifi-Alaoui, L. ; Bussy, P.
Author_Institution :
Lab. des Technol. Innovantes, Univ. de Picardie Jules Verne, Cuffies, France
Abstract :
This paper deals with the robust control problem of two coupled tank subjected to parameters uncertainties and external disturbance. The Standard Sliding Mode (SSM) controller produces oscillations (or¿chattering¿) in the closed-loop system. The new approach High Order Sliding Mode (HOSM) is proposed to eliminate the undesired chattering effect by using the robust differentiator. The application of this method to the two-tank system illustrates the validity and the performances of our approach. The experimental results are presented and discussed in this paper.
Keywords :
hydraulic systems; nonlinear control systems; robust control; uncertain systems; variable structure systems; closed- loop system; coupled tank; external disturbance; high order sliding mode; nonlinear hydraulic system; oscillations; parameters uncertainties; robust control; second order sliding mode controller; Automatic control; Control systems; Hydraulic systems; Nonlinear control systems; Nonlinear systems; Robust control; Robustness; Sliding mode control; Uncertain systems; Uncertainty; Second order sliding mode; nonlinear systems; robust differentiator; uncertain systems;
Conference_Titel :
Control and Automation, 2009. ICCA 2009. IEEE International Conference on
Conference_Location :
Christchurch
Print_ISBN :
978-1-4244-4706-0
Electronic_ISBN :
978-1-4244-4707-7
DOI :
10.1109/ICCA.2009.5410367
