Two degree-of-freedom Smith predictor for processes with time delay

被引：85

作者：

Zhang, WD ^{[1
]}

Sun, YX

Xu, XM

机构：

[1] Zhejiang Univ, Inst Ind Proc Control, Natl Lab Ind Control Technol, Hangzhou 310027, Peoples R China

[2] Shanghai Jiao Tong Univ, Dept Automat Control, Shanghai 200030, Peoples R China

来源：

AUTOMATICA | 1998年 / 34卷 / 10期

基金：

中国博士后科学基金;

关键词：

process control; Smith predictor; two degree-of-freedom controller; disturbance rejection; robustness;

D O I：

10.1016/S0005-1098(98)00075-2

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, the conventional Smith predictor is modified, which leads to significant improvements in its regulatory capacities for reference inputs and disturbances. The proposed modification utilizes the existing prediction of the conventional time delay compensator and decouples the setpoint response from the disturbance response. The setpoint response and the disturbance response of the closed-loop system are adjusted by two parameters, respectively. This allows the designer to optimize them simultaneously. Illustrative examples are provided to show the advantages of the modified scheme. (C) 1998 Elsevier Science Ltd. All rights reserved.

引用

页码：1279 / 1282

页数：4

共 11 条

[1] A NEW SMITH PREDICTOR FOR CONTROLLING A PROCESS WITH AN INTEGRATOR AND LONG DEAD-TIME [J].