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Synchronization and Hyperchaos in Switched Dynamical Systems Based on Parallel Buck Converters

Toshimichi SAITO, Daisuke KIMURA

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Summary :

This paper studies switched dynamical systems based on a simplified model of two-paralleled dc-dc buck converters in current mode control. In the system, we present novel four switching rules depending on both state variables and periodic clock. The system has piecewise constant vector field and piecewise linear solutions: they are well suited for precise analysis. We then clarify parameter conditions that guarantee generation of stable 2-phase synchronization and hyperchaos for each switching rule. Especially, it is clarified that stable synchronization is always possible by proper use of the switching rules and adjustment of clock period. Presenting a simple test circuit, typical phenomena are confirmed experimentally.

Publication
IEICE TRANSACTIONS on Fundamentals Vol.E92-A No.8 pp.2061-2066
Publication Date
2009/08/01
Publicized
Online ISSN
1745-1337
DOI
10.1587/transfun.E92.A.2061
Type of Manuscript
PAPER
Category
Nonlinear Problems

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