Design of Robust Controller in Electrohydraulic Load Simulator

Author

Li, Ge Qiang ; Cao, Jian ; Zhang, Biao ; Zhao, Ke Ding

Author_Institution

Sch. of Mechatron. Eng., Harbin Inst. of Technol.

fYear

2006

fDate

13-16 Aug. 2006

Firstpage

779

Lastpage

784

Abstract

Application of mu theory in the electrohydraulic load simulator is studied. Robust control strategy of the electrohydraulic load simulator is put forward. The electrohydraulic load simulator is a complicated mechanical-electronic-hydraulic compound system, moreover it is a strong coupling and time-varying controlled object. Synthetically considering uncertainties such as parameter perturbations, model perturbations and external disturbances etc., robust force controller of the electrohydraulic load simulator is designed using mu synthesis theory. Robust stability and robust performance are analyzed by mu values of the system in which robust force controller is used. Moreover, experiment results of systems using robust force controller and classical force controllers are shown. The results indicate that the designed robust force controller is efficiency and superiority

Keywords

control system synthesis; electrohydraulic control equipment; force control; hydraulic systems; robust control; electrohydraulic load simulator; external disturbance; mechanical-electronic-hydraulic compound system; model perturbation; parameter perturbation; robust controller design; robust force controller; robust stability; Aerodynamics; Analytical models; Control system synthesis; Control systems; Electrohydraulics; Force control; Robust control; Robust stability; Servomechanisms; Uncertainty; Electrohydraulic load simulator; Robust; Â¿ analysis; Â¿ synthesis;

fLanguage

English

Publisher

ieee

Conference_Titel

Machine Learning and Cybernetics, 2006 International Conference on

Conference_Location

Dalian, China

Print_ISBN

1-4244-0061-9

Type

conf

DOI

10.1109/ICMLC.2006.258453

Filename

4028168