Asymptotic harmonic generator design via modification of Van der Pol oscillator

Y. Orlov, L. T. Aguilar, L. Acho, A. Ortiz

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

A well-known Van der Pol oscillator is modified to be introduced into the synthesis as an asymptotic harmonic generator of the periodic motion. The proposed modification possesses a limit cycle, producing a single harmonic as opposed to multi-harmonics of a standard harmonic oscillator. The parameters of the asymptotic harmonic generator are shown to specify damping, amplitude, and frequency of the limit cycle production. A model orbit stabilization approach to swing up control of a two-link pendulum robot (Pendubot) is used as a case of study. The quasihomogeneous control synthesis is utilized to design a variable structure controller that drives the actuated link of the Pendubot to a periodic reference orbit in finite time. Performance issues of the controller constructed are illustrated in an experimental study.

Original languageEnglish
Title of host publication3rd IFAC Workshop "Periodic Control Systems", PSYCO'2007 - Final Program and Abstracts
PublisherIFAC Secretariat
Pages90-94
Number of pages5
EditionPART 1
ISBN (Print)9783902661302
DOIs
StatePublished - 2007
Externally publishedYes

Publication series

NameIFAC Proceedings Volumes (IFAC-PapersOnline)
NumberPART 1
Volume3
ISSN (Print)1474-6670

Keywords

  • Orbital stabilization
  • Van der Pol equation
  • Variable structure control

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