Non-Smooth Bifurcation and Chaos in a DC-DC Buck Converter
Non-Smooth Bifurcation and Chaos in a DC-DC Buck Converter
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DOI：
10.1088/0256-307x/24/4/011
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发表时间：
2007-04
影响因子：
3.5
通讯作者：
Qin Zhi-ying;Lu Qishao
中科院分区：
文献类型：
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作者：
Qin Zhi-ying;Lu Qishao
用三种庞加莱映射研究了一种集成负载电流反馈的直流-直流（DC-DC）降压变换器。在该模型中，外部角碰撞分岔发生在每周期交叉次数变化时，内部角碰撞分岔发生在倍周期分岔和三倍周期分岔时。多波段混沌根源于外部角碰撞分岔，往往发展为1波段混沌。在此模型中还发现了一种新的混沌滑动轨道，它对于非光滑系统更为复杂。
A direct-current–direct-current (DC-DC) buck converter with integrated load current feedback is studied with three kinds of Poincare maps. The external corner-collision bifurcation occurs when the crossing number per period varies, and the internal corner-collision bifurcations occur along with period-doubling and period-tripling bifurcations in this model. The multi-band chaos roots in external corner-collision bifurcation and often grows into 1-band chaos. A new kind of chaotic sliding orbits, which is more complex for non-smooth systems, is also found in this model.