Title :
Robust tracking control for a hydraulic actuation system
Author_Institution :
Dept. of Eng. Sci., Duisburg Univ.
Abstract :
This paper presents a nonlinear control approach to the position tracking for a hydraulic actuation system, which consists mostly of a servovalve and an asymmetric single-rode cylinder. The proposed control approach is derived using a sliding mode control strategy. The tracking performance and the robustness against considerable parametric uncertainties (uncertain fluid compressibility, load variations, changes in friction constants, etc.) of the presented control method are demonstrated by both simulations and experiments under various operating conditions
Keywords :
hydraulic actuators; nonlinear control systems; position control; robust control; servomechanisms; tracking; uncertain systems; valves; variable structure systems; asymmetric single-rode cylinder; fluid compressibility; friction constants; hydraulic actuation system; nonlinear control approach; parametric uncertainty; position tracking; robust tracking control; servovalve; sliding mode control strategy; Computer simulation; Control systems; Engine cylinders; Friction; Hydraulic systems; Load management; Nonlinear control systems; Robust control; Sliding mode control; Uncertainty;
Conference_Titel :
Control Applications, 2005. CCA 2005. Proceedings of 2005 IEEE Conference on
Conference_Location :
Toronto, Ont.
Print_ISBN :
0-7803-9354-6
DOI :
10.1109/CCA.2005.1507162
