TY - JOUR
T1 - 2-SMC of Electro-Hydraulic Drives Using the Twisting Algorithm
AU - Schmidt, Lasse
AU - Andersen, Torben Ole
AU - Pedersen, Henrik C.
AU - Bech, Michael Møller
PY - 2012
Y1 - 2012
N2 - In this paper a controller utilizing second order sliding modes, generally applicable for position tracking control of electro-hydraulic valve-cylinder drives (VCD), is proposed. The proposed controller requires pressure measurements, and only the signs of the valve spool position and piston position- and velocity. The main objective is to introduce a control concept that provide for increased performance compared to linear controllers, in the presence of the inherent nonlinear nature characterizing such systems. To accomplish this task, a controller based on the twisting algorithm and knowledge of system gain variations is proposed. Results demonstrate strong robustness when subjected to parameter perturbations and that control chattering is eliminated.
AB - In this paper a controller utilizing second order sliding modes, generally applicable for position tracking control of electro-hydraulic valve-cylinder drives (VCD), is proposed. The proposed controller requires pressure measurements, and only the signs of the valve spool position and piston position- and velocity. The main objective is to introduce a control concept that provide for increased performance compared to linear controllers, in the presence of the inherent nonlinear nature characterizing such systems. To accomplish this task, a controller based on the twisting algorithm and knowledge of system gain variations is proposed. Results demonstrate strong robustness when subjected to parameter perturbations and that control chattering is eliminated.
UR - http://www.scopus.com/inward/record.url?scp=84871598235&partnerID=8YFLogxK
U2 - 10.4028/www.scientific.net/AMM.233.131
DO - 10.4028/www.scientific.net/AMM.233.131
M3 - Journal article
SN - 1660-9336
VL - 233
SP - 131
EP - 134
JO - Applied Mechanics and Materials
JF - Applied Mechanics and Materials
ER -