Modified Smith predictor design for periodic disturbance rejection

被引：25

作者：

Zhou, Han-Qin ^{[2
]}

Wang, Qing-Guo ^{[1
]}

Min, Liu ^{[1
]}

机构：

[1] Natl Univ Singapore, Dept Elect & Comp Engn, Singapore 119260, Singapore

[2] Jacobs Engn Grp Inc, Houston, TX 77072 USA

来源：

ISA TRANSACTIONS | 2007年 / 46卷 / 04期

关键词：

smith predictor; periodic disturbance; unstable process; time delay; PID control;

D O I：

10.1016/j.isatra.2007.03.007

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

In this paper, a modified Smith predictor control scheme is proposed for periodic disturbance rejection in both stable and unstable processes with time delay. Without affecting the superior setpoint response of Smith predictor control, the regulation performance under periodic disturbance can be enhanced significantly by the proposed design. Meanwhile, the asymptotical rejection for non-periodic disturbance will also be improved. Internal stability is investigated for a closed-loop control system. The effectiveness of the proposed scheme will be demonstrated by simulations as well as a test on an experimental thermal system. (c) 2007, ISA. Published by Elsevier Ltd. All rights reserved.

引用

页码：493 / 503

页数：11

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