Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/19670
Title: Study of bifurcations in current-programmed dc/dc boost converters : from quasi-periodicity to period-doubling
Authors: Chan, WCY
Tse, CK 
Keywords: Bifurcation chaos
Boost converter
Current-programmed control
Issue Date: 1997
Publisher: Institute of Electrical and Electronics Engineers
Source: IEEE transactions on circuits and systems. I, Fundamental theory and applications, 1997, v. 44, no. 12, p. 1129-1142 How to cite?
Journal: IEEE transactions on circuits and systems. I, Fundamental theory and applications 
Abstract: This paper studies the bifurcation paths exhibited by a simple second-order dc/dc boost converter under current-programmed control with and without voltage feedback. Previous work in this area has reported two distinct types of bifurcation paths, namely via regions of quasi-periodic orbits and perioddoubling. This paper demonstrates that the two different types of bifurcation paths can, in fact, be viewed as part of another bifurcation in which the quasi-periodic sequence transmutes into the period-doubling sequence, and that such a bifurcation is observed regardless of the presence of the outer voltage feedback loop as long as a suitable set of bifurcation parameters is chosen. The describing iterative map is derived in closed form and is used to develop the main results via a series of computer experiments. The characteristic multipliers are calculated and the first onset of flip-bifurcation is predicted. Computer simulation based on an exact piecewise switched model confirms the predicted bifurcations. The exhibition of quasi-periodic orbits is confirmed by computation of the Lyapunov exponent. Finally, a series of return maps are generated to provide an alternative viewpoint to the reported bifurcations in terms of a transmutation from a tent-like map to a logistic-like map.
URI: http://hdl.handle.net/10397/19670
ISSN: 1057-7122
DOI: 10.1109/81.645154
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