Exploration of Bifurcation and Chaos in Buck Converter Supplied From a Rectifier

The bifurcation phenomena in a current-mode controlled buck converter has been explored when the input of the converter is a rectifier having ripple in the output voltage instead of a regulated ideal dc power supply. A comparison between the two different input conditions shows a wide variation in m...

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Bibliographic Details
Published in:IEEE transactions on power electronics 2010-06, Vol.25 (6), p.1556-1564
Main Authors: Basak, Biswarup, Parui, Sukanya
Format: Article
Language:English
Subjects:
Applied sciences
Bifurcation
Buck converters
Chaos
Circuit properties
continuous conduction mode (CCM)
Convertors
dc-dc converter
Delay effects
Diodes
discontinuous conduction mode (DCM)
Electric currents
Electric, optical and optoelectronic circuits
Electrical engineering. Electrical power engineering
Electrical equipment
Electrical machines
Electronic circuits
Electronic equipment and fabrication. Passive components, printed wiring boards, connectics
Electronics
Exact sciences and technology
Mathematical model
Mathematical models
Power electronics, power supplies
Power supplies
Power supply
Rectifiers
Signal convertors
Switching
Switching converters
Switching frequency
Voltage control
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Description
Summary:The bifurcation phenomena in a current-mode controlled buck converter has been explored when the input of the converter is a rectifier having ripple in the output voltage instead of a regulated ideal dc power supply. A comparison between the two different input conditions shows a wide variation in most of the cases and it is difficult to predict the converter dynamics observing bifurcation diagram only. The mathematical model is developed in continuous conduction mode as well as in discontinuous conduction mode. The switching delay has been considered as its effect has great influence on bifurcation phenomena specially at higher switching frequency of the converter. The observed bifurcation phenomena have been verified experimentally.
ISSN:0885-8993
1941-0107
DOI:10.1109/TPEL.2009.2035500