Journal of the Korean Society for Precision Engineering (한국정밀공학회지)

Korean Society for Precision Engineering (한국정밀공학회)
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A study on control of electrohydraulic servosystem with using model reference adaptive contorl theory

모델기준형 적응제어를 이용한 전기유압 서보계의 제어에 관한 연구

  • Kim, K.H. ;
  • Yun, I.R. ;
  • PARK, J.B. ;
  • Kim, J.K.Yum, M.O.
  • 김기홍 (동명중공업(주) 기술연구소) ;
  • 윤일노 (경남대학교 기계공학과 대학원) ;
  • 박재범 (경남대학교 기계공학과 대학원) ;
  • 김종겸염만오 (연암공업전문대학 기계설계과경남대학교 기계공학과)
  • Published : 1997.05.01
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Abstract

A model reference adaptive control(MRAC) theory is very useful for controlling a plant of which the parameters are unknown or vary during operation usint only input-output signal of plant. In this study, 2' nd order discreter time MRAC controller is designed for an electrohydraulic position control system which is represented with nonlinear mathematical model and the least square method is adopted for the para-meter adjustment law. This control algorthm is applied to the position control of electrohydraulic servosystem through computer simulation and the effect of the change of load, sampling time upon the performance following reference model and upon the performance of estimating plant parameters are examined.

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