ID 112108
Author
Ito, Daisuke Gifu University
Asahara, Hiroyuki Okayama University of Science
Kousaka, Takuji Oita University|Chukyo University
Keywords
Controlling chaos
Buck converter
Pulse–frequency modulation
Content Type
Journal Article
Description
DC-DC switching converters which are frequently treated as hybrid dynamical systems exhibit complex behavior due to nonlinear and interrupt characteristics. For synchronous buck-converters, we propose a method to control chaotic behavior by pulse-frequency modulation. An input voltage, a duty ratio of PWMs, and so on, affect to the regulation characteristics of converters directly, but a frequency of PWMs is determined by the frequency characteristics of the converter and is set as a fixed value. The proposed chaos-control method suppresses chaotic responses by slightly perturbing the pulse frequency alone, therefore our method can stabilize unstable periodic orbits without influence on the voltage regulation scheme. To simplify the feedback controller, the condition of dimension reduction for the controlling gain vector is derived. The proposed controller acheves the stabilization without a current sensor. Numerical simulation and circuit implementation demonstrate the validity of this method.
Journal Title
Chaos, Solitons & Fractals
ISSN
09600779
NCID
AA10824244
AA11523345
Publisher
Elsevier
Volume
111
Start Page
138
End Page
145
Published Date
2018-04-19
Remark
本文は2020-04-19以降公開予定
Rights
© 2018. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
EDB ID
337513
DOI (Published Version)
URL ( Publisher's Version )
language
eng
TextVersion
その他
departments
Center for Administration of Information Technology