文章基本信息

标题：Self-Tuning Control of An Electro-Hydraulic Actuator System
本地全文：下载
作者：R. Ghazali ; Y. M. Sam ; M. F. Rahmat 等
期刊名称：International Journal on Smart Sensing and Intelligent Systems
印刷版ISSN：1178-5608
出版年度：2011
卷号：4
期号：02
页码：189-204
出版社：Massey University
摘要：Abstract- Due to time-varying effects in electro-hydraulic actuator (EHA) system parameters, a self-tuning control algorithm using pole placement and recursive identification is presented. A discrete-time model is developed using system identification method to represent the EHA system and residual analysis is used for model validation. A recursive least square (RLS) method with covariance resetting technique is proposed to estimate parameters of the discrete-time model. The results show the proposed control algorithm can adapt the changes occur in model parameters compared with the fixed controller. In conclusion, a self-tuning control is required in improving the EHS system performance in industrial positioning applications.
关键词：Index terms: System identification; pole placement; recursive least square; electro hydraulic actuator ;system; self tuning control