提高Smith预测控制系统鲁棒性的方法研究  

Survey of Improving Robust Performance with Smith Predictive Control System

作　　者：徐育新[1] 侯国莲[2] 张建华[2] 左燕[2] 

机构地区：[1]华北电力大学成人教育学院,北京102206 [2]华北电力大学(北京)自动化系,北京102206

出　　处：《现代电力》2003年第2期64-67,共4页Modern Electric Power

摘　　要：针对热工过程控制中存在的大惯性、大迟延 ,采用Smith预测控制解决此类问题。针对实际过程中经常出现的模型失配现象 ,提出一种改进型Smith预测控制结构并采用ITAE准则优化控制器参数 ,它能很好的避免传统Smith预测控制的缺点。此方法适用于火电厂主蒸汽压力控制系统 ,仿真结果证明该算法具有良好的控制品质和鲁棒性能。In view of the features of process control of large time-delay, this paper presents a Smith predictive control algorithm. According to model-unmatched in actual case, a modified Smith predictive control structure has been presented which can avoid shortcomings of the traditional Smith predictive control structure. The parameters of controller are optimized based on ITAE criteria. This method is suitable to superheated steam pressure control of thermal power station. The simulation result identified the validity and robustness.

关 键 词：Smith预测控制系统 鲁棒性 热工过程控制 仿真 

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]