A robust sliding-mode output tracking control for a class of relative degree zero and non-minimum phase plants: a chemical process application

G Herrmann, SK Spurgeon, C Edwards

Research output: Contribution to journalArticle (Academic Journal)peer-review

24 Citations (Scopus)

Abstract

A well-known robust observer-based sliding-mode output tracking control developed for strictly proper, minimum phase systems is extended to the control of relative degree zero, MIMO non-minimum phase plants. By assuming that the class of uncertainty is limited to an appropriate sub-space of the actuator range-space, a sliding-mode tracking control for non-minimum phase systems is posed. By introducing some dynamics, in the form of a plant output filter, relative degree zero plants are proved to be robustly controllable. The design of the linear components of the tracking control and the observer gains is posed in an H2-framework. The control law is exemplified on the control of a highly non-linear, benzene producing, large scale chemical process.
Translated title of the contributionA robust sliding-mode output tracking control for a class of relative degree zero and non-minimum phase plants: a chemical process application
Original languageEnglish
Pages (from-to)1194 - 1209
Number of pages16
JournalInternational Journal of Control
Volume74 (12)
DOIs
Publication statusPublished - Aug 2001

Bibliographical note

Publisher: Taylor & Francis

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