Open AccessAnalysis of Hopf bifurcation in voltage-controlled boost converter under different switching frequencies
Author(s) -
Faqiang Wang,
Xikui Ma,
Yonghong Yan
Publication year - 2011
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.60.060510
Subject(s) - hopf bifurcation , voltage , boost converter , control theory (sociology) , bifurcation , buck–boost converter , physics , computer science , nonlinear system , control (management) , quantum mechanics , artificial intelligence
Due to the absence of the switching frequency in the conventional average model of the voltage-controlled boost converter, this model cannot be used to analyze the influence of the switching frequency on the Hopf bifurcation in the voltage-controlled boost converter. In this paper, the influence of the switching frequency on the Hopf bifurcation in the voltage-controlled boost converter is analyzed by establishing the improved averaged model, which contains the switching frequency. The circuit is designed, and some typical experimental results are given. It is found that it is effective to use the improved average model to analyze the influence of the switching frequency on the Hopf bifurcation in the voltage-controlled boost converter and the Hopf bifurcation is easy to occur when the switching frequency of the voltage-controlled boost converter decreases.