Experimental study of robust output-based continuous sliding-modes controllers for Van der Pol oscillator

Hafiz Ahmed, Héctor Ríos

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

Robust output tracking control of Van der Pol oscillator is an important practical problem from an application point ofview. Output feedback-based robust tracking control strategies are proposed in this work for that purpose. First, a high-ordersliding-mode observer is used to estimate the oscillator states from the measurable output and to identify some types ofdisturbances. Then, five different continuous sliding-modes controllers (Continuous-SMCs) are provided to robustly track adesired time-varying trajectory, exponentially or in a finite time, for the Van der Pol oscillator despite the presence of externaldisturbances. The closed-loop stability for each Continuous-SMC is given based on input-to-state stability properties. Finally,experimental validations are also provided to show the feasibility of the proposed controllers in real time.

Original languageEnglish
Pages (from-to)2088-2097
Number of pages10
JournalIET Control Theory and Applications
Volume12
Issue number15
DOIs
StatePublished - 16 Oct 2018

Bibliographical note

Publisher Copyright:
© 2018 The Institution of Engineering and Technology.

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