Title :
Model reference adaptive control for time varying hydraulic systems
Author :
Liu, Dong ; Ma, Jie
Author_Institution :
Control & Simulation Center, Harbin Inst. of Technol., Harbin
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;
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
DOI :
10.1109/ICMLC.2008.4620740
