过热汽温控制系统的典型控制策略及DCS实现  

Typical Control Stategies of the Superheated Steam Temperature Control System

作　　者：何同祥[1] 史向东[2] 刘正华 孙鹏 

机构地区：[1]华北电力大学动力工程系,河北保定071003 [2]山东电力高等专科学校,山东济南250010 [3]保定火电安装公司,河北保定071002

出　　处：《华北电力大学学报（自然科学版）》2000年第3期83-86,共4页Journal of North China Electric Power University：Natural Science Edition

摘　　要：对可应用于过热汽温控制系统中的变参数控制、自校正—Ｓｍｉｔｈ预估控制、模糊控制、状态变量—ＰＩＤ控制等几种典型控制策略进行了简要介绍和分析，并给出了它们的分散控制系统实现方法。仿真研究和工程实践都证明：这些典型控制策略有利于克服过热汽温对象的大惯性、大迟延特性，能取得优于常规ＰＩＤ串级控制系统的控制品质。The principles of sevral typical control strategies of the superheated steam temperature control system are introduced and analyzed briefly in this paped, such as variable parameter control, self-tuning Smith predictive control, fuzzy control and state variable-PID control. Their implementation in the Distributed Control System is given. It shows both by simulation and by practice that they are capable of overcoming the large lag time and dead time of the superheated steam tempefature, thus can obtain beder performance than the conventional PID cascade control strategy.

关 键 词：过热汽温 控制系统 典型控制策略 DCS 

分 类 号：TK32[动力工程及工程热物理—热能工程] TP273[自动化与计算机技术—检测技术与自动化装置]