Journal
JOURNAL OF PROCESS CONTROL
Volume 24, Issue 9, Pages 1402-1411Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.jprocont.2014.06.009
Keywords
Multivariable bilinear systems; Paper-making process; Robust H infinity control; State feedback control; Lyapunov stability analysis; LMI
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This paper presents a new method to calculate the feedback control gain for a class of multivariable bilinear system, and also applied this method on the control of two sections of paper-making process with disturbance. The robust H infinity control problem is to design a state feedback controller such that the robust stability and a prescribed H infinity performance of the resulting closed-loop system are ensured. The controller turns out to be robust with respect to the disturbance in the plant. Utilizing the Schur complement and some variable transformations, the stability conditions of the multivariable bilinear systems are formulated in terms of Lyapunov function via the form of linear matrix inequality (LMI). The gain of controller will be calculated via LMI. Finally, the application examples of a headbox section and a dryer section of paper-making process are used to illustrate the applicability of the proposed method. (C) 2014 Elsevier Ltd. All rights reserved.
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