大时滞积分过程的改进Smith预估控制器

辽宁石油化工大学学报 ›› 2009, Vol. 29 ›› Issue (3): 73-76.

大时滞积分过程的改进Smith预估控制器

李会举,翟春艳

辽宁石油化工大学计算机与通信工程学院,辽宁抚顺113001

收稿日期:2008-12-12 出版日期:2009-09-25 发布日期:2017-07-05
作者简介:李会举(1975-),男,辽宁黑山县,讲师

Modified Smith Predictor Controller for Integrating Processes With Long Dead Time

LI Hui-ju， ZHAI Chun-yan

School of Computer and Communication Engineering, Liaoning University of Petroleum & Chemical Technology, Fushun Liaoning 113001, P.R.China

Received:2008-12-12 Published:2009-09-25 Online:2017-07-05

摘要/Abstract

摘要： 针对大时滞积分过程提出了一种改进Smith预估PI控制算法,该算法引入两个具有明显物理意义的
可调参数,一个参数用于调节闭环伺服系统的跟踪速度,另一个用于改变闭环系统对扰动的控制品质。同时,提出
了基于这两个参数的PI控制器参数整定方法,在模型失配情况下,对参数的稳定域进行估计,两个仿真实例验证了
算法的有效性。

关键词: 纯滞后补偿 , Smith预估器 , 积分过程 , PID控制器

Abstract: A simple modified Smith predictor controller design was proposed for integrating processes with long dead time. The overall control structure introduced two physically meaningful tuning parameters. One was used to set the speed of the closed-loop servo response and the other was used to set the performance of the load response. A simple controller tuning method was also developed to obtain the PI tuning parameters. With a given estimation of the unmatched model, the stability region of the tuning parameter was estimated. Two examples were used to demonstrate the effectiveness of the method.

Key words: Dead time compensation , Smith predictor , Integrating process , PID controller

李会举,翟春艳. 大时滞积分过程的改进Smith预估控制器[J]. 辽宁石油化工大学学报, 2009, 29(3): 73-76.

LI Hui-ju， ZHAI Chun-yan. Modified Smith Predictor Controller for Integrating Processes With Long Dead Time[J]. Journal of Liaoning Petrochemical University, 2009, 29(3): 73-76.