| DC-DC功率变换器中非线性现象的仿真研究 |
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| 引用本文： | 雷涛,林辉,张晓斌,赵敬辉.DC-DC功率变换器中非线性现象的仿真研究[J].计算机仿真,2008,25(4):308-312. |
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| 作者姓名： | 雷涛 林辉 张晓斌 赵敬辉 |
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| 作者单位： | 西北工业大学自动化学院,陕西,西安,710072 |
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| 摘 要： | DC-DC开关变换器中蕴涵着丰富的非线性现象,混沌与分岔在变换器中存在着一定的产生机理和表现形式.对两种基本拓扑结构DC-DC变换器Boost、Buck的非线性现象进行了仿真研究,建立了两种变换器的离散迭代映射模型和精确开关模型,经过数字仿真,验证了存在于DC-DC变换器中的分岔和混沌现象.对闭环控制Boost变换器,深入分析了采用离散迭代模型和精确开关模型后仿真结果的差异及原因.所采用的数值仿真方法为DC-DC变换器的电路参数优化提供了理论工具.
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| 关 键 词： | 开关变换器 分岔 混沌 离散迭代映射 数字仿真 |
| 文章编号： | 1006-9348(2008)04-0308-05 |
| 修稿时间： | 2007年3月16日 |
Simulation of Non-linear Phenomena in DC-DC Converters |
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| LEI Tao,LIN Hui,ZHANG Xiao-bin,ZHAO Jing-hui.Simulation of Non-linear Phenomena in DC-DC Converters[J].Computer Simulation,2008,25(4):308-312. |
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| Authors: | LEI Tao LIN Hui ZHANG Xiao-bin ZHAO Jing-hui |
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| Affiliation: | LEI Tao,LIN Hui,ZHANG Xiao-bin,ZHAO Jing-hui (College of Automatic Control,Northwestern Polytechnical University,Xi'an Shanxi 710072,China) |
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| Abstract: | The DC-DC switching converters contain plenty of nonlinear phenomena.All of these nonlinear phenomena such as bifurcations and chaos have their existing mechanism and expressional form in these converters.The nonlinear phenomena of two basic dc-dc converter: buck and boost converter are studied based on Matlab/Simulink software.The discrete time model that accurately describes the dynamics of system is derived and the exact digital simulation is carried out to study the stability of the systems.The phenomen... |
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| Keywords: | Switching converter Bifurcation Chaos Discrete-time-map Digital simulation |
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