史密斯预估PID控制算法研究及其在DCS中的实现  

Smith Predictive PID Control Algorithm and its Realization in DCS

作　　者：胡艳[1] 郭钛星 韩璞[1] 

机构地区：[1]华北电力大学河北省发电过程仿真与优化控制工程技术研究中心,河北保定071003 [2]山西国际能源集团有限公司,山西太原030002

出　　处：《计算机仿真》2016年第5期409-412,共4页Computer Simulation

摘　　要：随着工业生产规模和复杂程度的不断增大,大迟延系统在工业生产过程中比较常见但又难以控制,一直是控制界关注的研究方向。在利用传统PID控制系统对大迟延对象进行控制的时候,得不到理想的控制效果,针对这类对象一般采用Smith预估算法。Smith预估算法对于大迟延系统的控制已经较为成熟,但由于控制设备发展较慢,Smith算法尚未被加入到DCS中。如今,在火电、化工行业中DCS已被普遍使用,因此有必要在DCS上加入Smith预估算法以解决控制调节速度慢、超调量大等问题。通过在DCS中加入Smith预估PID控制器,对大迟延系统进行控制研究的结果表明,Smith预估PID控制算法可以取得更好的控制效果。With the continuous increase of the industrial production scale and complexity,large delay system in the process of industrial production is common but difficult to control.The control effect of traditional PID control for the large delay object is not satisfactory.Smith predictor control for large delay system has been more mature,but due to the slow development of control equipment,Smith algorithm has not been added to the DCS.Today,DCS is generally used in thermal power and chemical industry,it is necessary to add Smith prediction algorithm to solve the control of slow speed and large overshoot problem in DCS.In this paper,Smith PID predictive controller is added in DCS,and the control effect of large delay system can be improved.

关 键 词：大迟延 控制效果 仿真 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]