SCI和EI收录∣中国化工学会会刊

Chinese Journal of Chemical Engineering ›› 2012, Vol. 20 ›› Issue (6): 1128-1135.

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

张聪, 杨帆, 叶昊   

  1. Tsinghua National Laboratory for Information Science and Technology, Department of Automation, Tsinghua University, Beijing 100084, China
  • 收稿日期:2012-05-03 修回日期:2012-07-10 出版日期:2012-12-28 发布日期:2012-12-28
  • 通讯作者: YE Hao,E-mail:haoye@tsinghua.edu.cn
  • 基金资助:
    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

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

ZHANG Cong, YANG Fan, YE Hao   

  1. Tsinghua National Laboratory for Information Science and Technology, Department of Automation, Tsinghua University, Beijing 100084, China
  • Received:2012-05-03 Revised:2012-07-10 Online:2012-12-28 Published:2012-12-28
  • Supported by:
    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.

关键词: closed-loop system, switching controller, informative property, continuous stirred-tank reactor process

Abstract: 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.

Key words: closed-loop system, switching controller, informative property, continuous stirred-tank reactor process