基于SPICE设计的电流控制型Boost变换器分叉与混沌研究  

Study of Bifurcation and Chaos of a SPICE-Based Current-Mode Controlled Boost Converter

作　　者：闵国旗 王丽丹[1] 段书凯[1] 夏思为 

机构地区：[1]西南大学电子信息工程学院,重庆400715

出　　处：《西南大学学报（自然科学版）》2015年第9期157-164,共8页Journal of Southwest University(Natural Science Edition)

基　　金：新世纪优秀人才支持计划(教技函[2013]47号);国家自然科学基金(61372139;61571372;60972155);留学人员科技活动项目择优资助经费(国家级;优秀类;渝人社办〔2012〕186号);重庆市高等学校优秀人才支持计划(渝教人〔2011〕65号);重庆市高等学校青年骨干教师资助计划(渝教人〔2011〕65号);中央高校基本科研业务费专项资金(XDJK2014A009;XDJK2013B011)

摘　　要：以电流控制型Boost变换器的离散映射模型为基础,得出变换器的电感电流随参考电流变化的分叉图,并采用Simulink建立的状态空间模型对分叉图进行描述.以此为基础,研究一种基于SPICE设计的电流控制型Boost变换器,分析了以参考电流为变化参数的分叉和混沌现象,解释了系统分叉与混沌行为的成因.一系列的仿真结果验证了理论分析的正确性,为实际工程设计中避免Boost变换器的分叉、混沌行为提供理论依据.Based on the discrete mapping model of current controlled Boost Converter,a bifurcation diagram of inductor current of converter changing with the reference current is drawn in this paper.We describe the bifurcation diagram with the state space model established by Simulink.On this basis,we research a kind of current controlled Boost converter based on the SPICE design,and then analyze the phenomenon of bifurcation and chaos which takes the reference current changing as a parameter as well as explain the causes of the bifurcation and chaotic behavior of the system.A series of simulation results verify the theoretical analysis,and provide a theoretical basis for avoiding the bifurcation and chaotic behavior of Boost Converter in the practical engineering designing.

关 键 词：电流控制型Boost变换器 分叉 混沌 SPICE设计 

分 类 号：TN710.1[电子电信—电路与系统]