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Analysis of Hopf bifurcation in voltage-controlled boost converter under different switching frequencies

Wang Fa-Qiang Ma Xi-Kui Yan Ye

Analysis of Hopf bifurcation in voltage-controlled boost converter under different switching frequencies

Wang Fa-Qiang, Ma Xi-Kui, Yan Ye
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  • Abstract views:  3412
  • PDF Downloads:  883
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Publishing process
  • Received Date:  14 October 2010
  • Accepted Date:  11 February 2011
  • Published Online:  05 March 2011

Analysis of Hopf bifurcation in voltage-controlled boost converter under different switching frequencies

  • 1. State Key Laboratory of Electrical Insulation and Power Equipment, School of Electrical Engineering, Xian Jiaotong University, Xian 710049, China

Abstract: 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.

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