| Symmetrical dynamics of peak current-mode and valley current-mode controlled switching dc-dc converters with ramp compensation |
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| 作者姓名： | 周国华 许建平 包伯成 金艳艳 |
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| 作者单位： | (1)School of Electrical and Information Engineering, Jiangsu Teachers University of Technology, Changzhou 213001, China; (2)School of Electrical Engineering, Southwest Jiaotong University, Chengdu
610031, China |
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| 基金项目： | Project supported by the National
Natural Science Foundation of China (Grant No.~50677056), the
Natural Science Foundation of Jiangsu Province, China (Grant
No.~BK2009105), the Cultivation Project of Excellent Doctorate
Dissertation of Southwest Jiaotong |
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| 摘 要： | The discrete iterative map models of peak current-mode
(PCM) and valley current-mode (VCM) controlled buck converters, boost
converters, and buck--boost converters with ramp compensation are
established and their dynamical behaviours are investigated by using
the operation region, parameter space map, bifurcation diagram, and
Lyapunov exponent spectrum. The research results indicate that ramp
compensation extends the stable operation range of the PCM controlled
switching dc--dc converter to D>0.5 and that of the VCM controlled switching
dc--dc converter to D<0.5. Compared with PCM controlled switching
dc--dc converters with ramp compensation, VCM controlled
switching dc--dc converters with ramp compensation exhibit
interesting symmetrical dynamics. Experimental results are given to
verify the analysis results in this paper.
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| 关 键 词： | discrete iterative map model dynamics switching converters ramp compensation |
| 收稿时间： | 2009-11-06 |
Symmetrical dynamics of peak current-mode and valley current-mode controlled switching dc－dc converters with ramp compensation |
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| Zhou Guo-Hu,Xu Jian-Ping,Bao Bo-Cheng and Jin Yan-Yan.Symmetrical dynamics of peak current-mode and valley current-mode controlled switching dc-dc converters with ramp compensation[J].Chinese Physics B,2010,19(6):60508-060508. |
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| Authors: | Zhou Guo-Hu Xu Jian-Ping Bao Bo-Cheng and Jin Yan-Yan |
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| Institution: | School of Electrical Engineering, Southwest Jiaotong University, Chengdu 610031, China; School of Electrical and Information Engineering, Jiangsu Teachers University of Technology, Changzhou 213001, China |
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| Abstract: | The discrete iterative map models of peak current-mode
(PCM) and valley current-mode (VCM) controlled buck converters, boost
converters, and buck--boost converters with ramp compensation are
established and their dynamical behaviours are investigated by using
the operation region, parameter space map, bifurcation diagram, and
Lyapunov exponent spectrum. The research results indicate that ramp
compensation extends the stable operation range of the PCM controlled
switching dc--dc converter to $D>0.5$ and that of the VCM controlled switching
dc--dc converter to $D<0.5$. Compared with PCM controlled switching
dc--dc converters with ramp compensation, VCM controlled
switching dc--dc converters with ramp compensation exhibit
interesting symmetrical dynamics. Experimental results are given to
verify the analysis results in this paper. |
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| Keywords: | discrete iterative map model dynamics switching
converters ramp compensation |
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