Development of Linearizing Feedback Control with a Variable Structure Observer for Continuous Stirred Tank Reactors

被引:14
|
作者
Daaou, Bachir [1 ,2 ]
Mansouri, Abdellah [2 ]
Bouhamida, Mohamed [2 ]
Chenafa, Mohammed [2 ]
机构
[1] Ibn Khaldoun Univ, Dept Sci & Technol, Tiaret, Algeria
[2] ENSET Oran, Lab Automat & Syst Anal LAAS, Dept Elect Engn, Oran, Algeria
关键词
variable structure observer; linearizing feedback; global stability; continuous stirred tank reactors; HIGH-GAIN OBSERVERS; NONLINEAR-SYSTEMS; CHEMICAL REACTORS; STATE-OBSERVATION; SLIDING OBSERVER; BIOREACTORS;
D O I
10.1016/S1004-9541(11)60220-6
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
This paper deals with the design of an observer-based nonlinear control for continuous stirred tank reactors (CSTR). A variable structure observer is constructed to estimate the whole process state variables. This observer is basically the conventional Luenberger observer with an additional switching term used to guarantee the robustness against modeling errors. The observer is coupled with a nonlinear controller, designed based on input-output linearization for controlling the reactor temperature. The asymptotical stability of the closed-loop system is shown by the Lyapunov stability theorem. Finally, computer simulations are developed for showing the performance of the proposed approach.
引用
收藏
页码:567 / 571
页数:5
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