Control de sistemas inestables estrictamente propios de segundo orden con retardo

D.F. Novella-Rodríguez, B. del Muro-Cuéllar

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)


This paper considers the stabilization and control of linear time invariant systems containing two unstable poles, a "stable" zero and time delay. It is well known that time delays complicate the stability analysis and the design of appropriate control strategies. For this reason, we propose a simple control strategy based on an observer system with the aim of stabilize this class of systems. Necessary and suffcient conditions are stated in order to guarantee the stability of the closed loop system. Once the stability conditions are satisfied, only the plant model and four proportional gains are enough in order to implement the proposed control strategy. Finally, some examples are presented in order to illustrate the proposed control strategy performance, showing some robustness when uncertainties are presented in the time delay value.

Original languageEnglish
Pages (from-to)551-559
Number of pages9
JournalRevista Mexicana de Ingeniera Qumica
Issue number3
Publication statusPublished - Dec 2011
Externally publishedYes

Bibliographical note

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All Science Journal Classification (ASJC) codes

  • General Chemical Engineering


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