Modelling and LPV control of an electro-hydraulic servo system

Author

Wijnheijmer, Frans ; Naus, Gerrit ; Post, Wil ; Steinbuch, Maarten ; Teerhuis, Piet

Author_Institution

department of Mechanical Engineering, Control Systems Technology group of the Eindhoven University of Technology, The Netherlands

fYear

2006

fDate

4-6 Oct. 2006

Firstpage

3116

Lastpage

3121

Abstract

This paper aims to show the modelling and control of an hydraulic servo system, targeting at frequency domain based controller design and the implementation of a LPV controller. The actual set-up consists of a mass, moved by a hydraulic cylinder and an electro-hydraulic servo valve. A nonlinear parametric model of the system, a number of fitted linear black box models as well as a LPV model combining these fits have been determined. In discretization of the control strategies for implementation on a digital control system, a new discretization algorithm is derived for LPV structures. Simulations and experimental results indicate the potential benefits of a position dependent controller over a classical controller, but show the limitations as well.

Keywords

Control system synthesis; Control systems; Engine cylinders; Force control; Frequency domain analysis; Nonlinear dynamical systems; Parametric statistics; Pistons; Servomechanisms; Valves;

fLanguage

English

Publisher

ieee

Conference_Titel

Computer Aided Control System Design, 2006 IEEE International Conference on Control Applications, 2006 IEEE International Symposium on Intelligent Control, 2006 IEEE

Conference_Location

Munich, Germany

Print_ISBN

0-7803-9797-5

Electronic_ISBN

0-7803-9797-5

Type

conf

DOI

10.1109/CACSD-CCA-ISIC.2006.4777136

Filename

4777136