Applying resonant parametric perturbation to control chaos in the buck dc/dc converter with phase shift and frequency mismatch considerations

Yufei Zhou, Chi Kong Tse, Shui Sheng Qiu, Chung Ming Lau

Research output: Journal article publicationJournal articleAcademic researchpeer-review

76 Citations (Scopus)


The buck converter has been known to exhibit chaotic behavior in a wide parameter range. In this paper, the resonant parametric perturbation method is applied to control chaos in a voltage-mode controlled buck converter. In particular, the effects of phase shift and frequency mismatch in the perturbing signal are studied. It is shown that the control power can be significantly reduced if the perturbation is applied with an appropriate phase shift. Moreover, when frequency mismatch is inevitable, intermittent chaos occurs, but effective control can still be accomplished at the expense of raising the control power. Analysis, simulations and experimental measurements are presented to provide theoretical and practical evidences for the proposed control method.
Original languageEnglish
Pages (from-to)3459-3471
Number of pages13
JournalInternational Journal of Bifurcation and Chaos in Applied Sciences and Engineering
Issue number11
Publication statusPublished - 1 Jan 2003


  • Chaos control
  • dc/dc converter
  • Frequency mismatch
  • Phase shift
  • Resonant parametric perturbation

ASJC Scopus subject areas

  • Modelling and Simulation
  • Applied Mathematics

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