Abstract Bifurcation behaviours of the peak current controlled power-factor-correction (PFC) boost converter, including fast-scale instability and low-frequency bifurcation, are investigated in this paper. Conventionally, the PFC converter is analysed in continuous conduction mode (CCM). This prevents us from recognizing the overall dynamics of the converter. It has been pointed out that the discontinuous conduction mode (DCM) can occur in the PFC boost converter, especially in the light load condition. Therefore, the DCM model is employed to analyse the PFC converter to cover the possible DCM operation. By this way, the low-frequency bifurcation diagram is derived, which makes the route from period-double bifurcation to chaos clear. The bifurcation diagrams versus the load resistance and the output capacitance also indicate the stable operation boundary of the converter, which is useful for converter design.
Received: 24 December 2004
Revised: 24 April 2005
Accepted manuscript online:
Fund: Project supported by the Specialized Research Fund for the Doctoral Program of Higher Education (Grant No 20040700010), and the Natural Science Foundation of Shaanxi Province (GrantNo 2003F028).
Cite this article:
Ren Hai-Peng (任海鹏), Liu Ding (刘丁) Bifurcation behaviours of peak current controlled PFC boost converter 2005 Chinese Physics 14 1352
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