作　　者： ; ; ;

机构地区： 华南理工大学电力学院

出　　处： 《物理学报》 2008年第5期2728-2736,共9页

摘　　要： 根据一般迭代映射的倍周期分岔定理,从数学上论证了电压型不连续导电模式(DCM)Boost和Buck变换器中倍周期分岔现象产生条件,由此揭示了DC-DC变换器中倍周期分岔现象发生的机理,完善了该类变换器倍周期分岔分析的理论和方法. The period-doubling bifurcation in DC-DC converters has been investigated widely. However, the studies main focus on the models of bifurcations and the identification of strange attractors, the essential mechanism causing period-doubling bifurcation was not analyzed. This paper deduces mathematically the conditions of producing the period-doubling bifurcation in discontinuous current mode （DCM） Boost and Buck converters based on voltage feedback control. It exposes the mechanism of the perioddoubling bifurcation in DC-DC converters and perfects the theoretical analysis method, puting forward an analytic method for studying the period-doubling bifurcation.

关 键 词： 倍周期分岔 迭代映射 指数 施瓦茨导数

领　　域： [电子电信] [电子电信]