Hidden attractors localization in Chua circuit via the describing function method

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13 Scopus citations

Abstract

In this paper the Chua circuit with five linear elements and saturation non-linearity is studied. Numerical localization of self-excited attractor in the Chua circuit model can be done by computation of trajectory with initial data in a vicinity of an unstable equilibrium. For a hidden attractor its basin of attraction does not overlap with a small vicinity of equilibria, so it is difficult to find the corresponding initial data for localization. This survey is devoted to the application of describing function method for localization of hidden periodic and chaotic attractors in the Chua model. We use a rigorous justification of the describing function method, based on the method of small parameter, to get the initial data for the visualization of the hidden attractors. A new configuration of hidden Chua attractors is presented.

Original languageEnglish
Pages (from-to)2651-2656
Number of pages6
JournalIFAC-PapersOnLine
Volume50
Issue number1
DOIs
StatePublished - 1 Jul 2017

Scopus subject areas

  • Control and Systems Engineering

Keywords

  • Chua circuit
  • describing function method
  • hidden attractor
  • self-excited attractor

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