Proportional‐derivative controller design of continuous‐time positive linear systems

This article focuses on the design of proportional‐derivative (PD) controllers for positive linear systems in the continuous‐time domain, which is a well‐known open problem in positive systems theory. The main objective is to design a PD controller subject to interval gain variations, which simultan...

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Bibliographic Details
Published inInternational journal of robust and nonlinear control Vol. 32; no. 18; pp. 9497 - 9511
Main Authors Liu, Jason J. R., Yang, Nachuan, Kwok, Ka‐Wai, Lam, James
Format Journal Article
LanguageEnglish
Published Bognor Regis Wiley Subscription Services, Inc 01.12.2022
Subjects
Algorithms
Control systems design
Controllers
Feedback control
Linear systems
nonfragile control
PD controller
positive linear systems
static output‐feedback control
Systems stability
Systems theory
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Summary:This article focuses on the design of proportional‐derivative (PD) controllers for positive linear systems in the continuous‐time domain, which is a well‐known open problem in positive systems theory. The main objective is to design a PD controller subject to interval gain variations, which simultaneously preserves the closed‐loop system stability and positivity. The provided results fill the literature gap by considering both the PD controller structure and positivity. Although various feedback control strategies of positive systems have been developed recently, the work provides, for the first time, a systematic and tractable framework for finding nonfragile PD controller gains for positive stabilization. Finally, the theory and algorithm performance are evaluated and illustrated by numerical examples.
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ISSN:1049-8923
1099-1239
DOI:10.1002/rnc.5809