中国物理B ›› 2012, Vol. 21 ›› Issue (2): 20505-020505.doi: 10.1088/1674-1056/21/2/020505

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王发强,张浩,马西奎   

  • 收稿日期:2011-07-18 修回日期:2011-09-15 出版日期:2012-01-30 发布日期:2012-01-30
  • 通讯作者: 王发强,faqwang@mail.xjtu.edu.cn E-mail:faqwang@mail.xjtu.edu.cn

Period-doubling bifurcation in two-stage power factor correction converters using the method of incremental harmonic balance and Floquet theory

Wang Fa-Qiang(王发强), Zhang Hao (张浩), and Ma Xi-Kui(马西奎)   

  1. State Key Laboratory of Electrical Insulation and Power Equipment, School of Electrical Engineering, Xi'an Jiaotong University, Xi'an 710049, China
  • Received:2011-07-18 Revised:2011-09-15 Online:2012-01-30 Published:2012-01-30
  • Contact: Wang Fa-Qiang,faqwang@mail.xjtu.edu.cn E-mail:faqwang@mail.xjtu.edu.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No. 51007068), the Specialized Research Fund for the Doctoral Program of Higher Education of China (Grant No. 20100201120028), the Fundamental Research Funds for the Central Universities of China, and the State Key Laboratory of Electrical Insulation and Power Equipment of China (Grant No. EIPE10303).

Abstract: In this paper, period-doubling bifurcation in a two-stage power factor correction converter is analyzed by using the method of incremental harmonic balance (IHB) and Floquet theory. A two-stage power factor correction converter typically employs a cascade configuration of a pre-regulator boost power factor correction converter with average current mode control to achieve a near unity power factor and a tightly regulated post-regulator DC-DC Buck converter with voltage feedback control to regulate the output voltage. Based on the assumption that the tightly regulated post-regulator DC-DC Buck converter is represented as a constant power sink and some other assumptions, the simplified model of the two-stage power factor correction converter is derived and its approximate periodic solution is calculated by the method of IHB. And then, the stability of the system is investigated by using Floquet theory and the stable boundaries are presented on the selected parameter spaces. Finally, some experimental results are given to confirm the effectiveness of the theoretical analysis.

Key words: two-stage power factor correction converter, incremental harmonic balance, Floquet theory, period-doubling bifurcation

中图分类号:  (Nonlinear dynamics and chaos)

  • 05.45.-a
84.30.Jc (Power electronics; power supply circuits) 45.10.Hj (Perturbation and fractional calculus methods)