Experimental Study of Robust Output-Based Continuous Sliding-Modes Controllers for Van der Pol Oscillator

Hafiz Ahmed, Héctor Ríos

Research output: Contribution to journalArticle

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Abstract

Robust output tracking control of Van der Pol oscillator is an important practical problem from an application point of view. Output feedback based robust tracking control strategies are proposed in this work for that purpose. First, a High-Order Sliding-Mode Observer (HOSM-O) is used to estimate the oscillator states from the measurable output and to identify some type of disturbances. Then, five different Continuous Sliding-Modes Controllers (Continuous-SMCs) are provided to robustly track a desired time-varying trajectory, exponentially or in a finite time, for the Van der Pol oscillator despite the presence of external disturbances. The closed-loop stability for each Continuous-SMC is given based on input-to-state stability (ISS) 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 Applications
Volume12
Issue number15
Early online date31 May 2018
DOIs
Publication statusPublished - 24 Sep 2018

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Van Der Pol Oscillator
Tracking Control
Sliding Mode
Experimental Study
Disturbance
Controller
Sliding Mode Observer
Controllers
Output
Experimental Validation
Output Feedback
Robust Control
Closed-loop
Control Strategy
Time-varying
Trajectories
Trajectory
Higher Order
Feedback
Real-time

Bibliographical note

This paper is a postprint of a paper submitted to and accepted for publication in IET Control Theory Applications and is subject to Institution of Engineering and Technology Copyright. The copy of record is available at the IET Digital Library

Cite this

Experimental Study of Robust Output-Based Continuous Sliding-Modes Controllers for Van der Pol Oscillator. / Ahmed, Hafiz; Ríos, Héctor .

In: IET Control Theory Applications, Vol. 12, No. 15, 24.09.2018, p. 2088 - 2097.

Research output: Contribution to journalArticle

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