Model reference adaptive control for time varying hydraulic systems

Author

Liu, Dong ; Ma, Jie

Author_Institution

Control & Simulation Center, Harbin Inst. of Technol., Harbin

Volume

4

fYear

2008

fDate

12-15 July 2008

Firstpage

2032

Lastpage

2035

Abstract

This paper focus on adaptive control of an electric-hydraulic servo position control system, in which an optical-electric pulse coder is used as the position feedback sensor. The pressure feedback and MRAS controller are introduced to enhance the system damp ratio and proper frequency. Using Matlab as a tool, a theoretic analysis and digital simulation have been made to show that the pressure-feedback MRAS controller has high accuracy, good dynamic character and strong robust while the system parameters changed at different oil temperature.

Keywords

electrohydraulic control equipment; feedback; hydraulic systems; model reference adaptive control systems; position control; robust control; servomechanisms; time-varying systems; MRAS controller; Matlab; digital simulation; electric-hydraulic servo position control system; model reference adaptive control; oil temperature; optical-electric pulse coder; position feedback sensor; pressure feedback; time varying hydraulic systems; Adaptive control; Adaptive optics; Hydraulic systems; Mathematical model; Optical feedback; Optical sensors; Position control; Pressure control; Servomechanisms; Time varying systems; Flying-Simulator; Hydraulic servo system; Model-reference adaptive control; Nonlinear; Temperature varying;

fLanguage

English

Publisher

ieee

Conference_Titel

Machine Learning and Cybernetics, 2008 International Conference on

Conference_Location

Kunming

Print_ISBN

978-1-4244-2095-7

Electronic_ISBN

978-1-4244-2096-4

Type

conf

DOI

10.1109/ICMLC.2008.4620740

Filename

4620740