Informative Property of the Data Set in a Single-input Single-output (SISO) Closed-loop System with a Switching Controller  

带有切换控制器的闭环单输入单输出系统的数据集信息充足特性分析(英文)

作　　者：张聪 杨帆 叶昊 

机构地区：[1]Tsinghua National Laboratory for Information Science and Technology,Department of Automation,Tsinghua University

出　　处：《Chinese Journal of Chemical Engineering》2012年第6期1128-1135,共8页中国化学工程学报（英文版）

基　　金：Supported by the National Basic Research Program of China (2010CB731800);the National Natural Science Foundation of China (60974059, 60736026, 61021063, 60904044, 61290324);Tsinghua National Laboratory for Information Science and Technology (TNList) Cross-discipline Foundation

摘　　要：Closed-loop identification is important and necessary to various model-based advanced process control strategies, whose performance depends greatly on the informative property of the data set. Switching control is an important method in process control. Therefore, this paper studies the informative property of a data set in a single-input single-output (SISO) closed-loop system with a switching controller. It is proved that this data set is informative if the controller switches among at least two modes (i.e., feedback laws). Our result does not require any assumption on the way of switch and removes the constraints on the switching manner required in some classical literature. Finally, simulation case studies based on a continuous stirred-tank reactor (CSTR) process are given to validate the results.Closed-loop identification is important and necessary to various model-based advanced process control strategies, whose performance depends greatly on the informative property of the data set. Switching control is an important method in process control. Therefore, this paper studies the informative property of a data set in a single-input single-output （SISO） closed-loop system with a switching controller. It is proved that this data set is informative if the controller switches among at least two modes （i.e., feedback laws）. Our result does not require any assumption on the way of switch and removes the constraints on the switching manner required in some classical literature. Finally, simulation case studies based on a continuous stirred-tank reactor （CSTR） process are given to validate the results.

关 键 词：closed-loop system switching controller informative property continuous stirred-tank reactor process 

分 类 号：TP13[自动化与计算机技术—控制理论与控制工程]