| Non-Smooth Bifurcation and Chaos in a DC-DC Buck Converter |
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| 作者姓名： | 秦志英 陆启韶 |
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| 作者单位： | [1]School of Science, Beijing University of Aeronautics and Astronautics, Beijing 100083 [2]School of MEE, Hebei University of Science and Technology, Shijiazhuang 050054 |
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| 基金项目： | Supported by the National Natural Science Foundation of China under Grant No 10572011. |
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| 摘 要： | A direct-current-direct-current （DC-DC） buck converter with integrated load current feedback is studied with three kinds of Poincaré 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.
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| 关 键 词： | 转换器 直流电 混沌学 不平滑分叉系统 |
| 收稿时间： | 2006-7-7 |
| 修稿时间： | 2006-07-07 |
Non-Smooth Bifurcation and Chaos in a DC-DC Buck Converter |
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| QIN Zhi-Ying,LU Qi-Shao.Non-Smooth Bifurcation and Chaos in a DC-DC Buck Converter[J].Chinese Physics Letters,2007,24(4):886-889. |
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| Authors: | QIN Zhi-Ying LU Qi-Shao |
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| Institution: | 1.School of Science, Beijing University of Aeronautics and Astronautics, Beijing 100083; 2School of MEE, Hebei University of Science and Technology, Shijiazhuang 050054 |
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| Abstract: | 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. |
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| Keywords: | 05 45 -a 84 32 Dd |
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