Analysis of dual-rate inferential control systems

被引：90

作者：

Li, DG

Shah, SL

Chen, TW ^{[1
]}

机构：

[1] Univ Alberta, Dept Elect & Comp Engn, Edmonton, AB T6G 2G7, Canada

[2] Univ Alberta, Dept Chem & Mat Engn, Edmonton, AB T6G 2G6, Canada

来源：

AUTOMATICA | 2002年 / 38卷 / 06期

关键词：

robustness; stability; multirate systems; digital control; inferential control;

D O I：

10.1016/S0005-1098(01)00295-3

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

For a dual-rate control system where the output sampling interval is an integer multiple of the control interval, we propose a model-based inferential control scheme which uses a fast-rate model to estimate the intersample outputs and then supply them to a controller at the fast rate. Comparing such an inferential controller with the corresponding fast single-rate controller, we conclude that the former is no better in disturbance rejection capability; however, in the presence of model-plant mismatch, the former is advantageous in stability robustness of the closed-loop system. (C) 2002 Published by Elsevier Science Ltd.

引用

页码：1053 / 1059

页数：7

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