电压反馈型Boost变换器DCM的精确离散映射及其分岔和混沌现象  

The Precise Discrete Mapping of Voltage-Fed DCM Boost Converter and Its Bifurcation and Chaos

作　　者：张波[1] 曲颖[1] 

机构地区：[1]华南理工大学电力学院,510640

出　　处：《电工技术学报》2002年第3期43-47,共5页Transactions of China Electrotechnical Society

基　　金：国家自然科学基金 (5 0 1770 0 9);广东省自然科学基金 (0 1165 2 )资助项目

摘　　要：建立了电压反馈型Boost变换器不连续运行模式 (DCM )下的精确离散映射 ,在此基础上分析了电压反馈系数K与Boost变换器分岔稳定性关系 ,精确地界定了K的稳定工作范围 ,进而仿真和实验研究了Boost变换器的分岔和混沌运动 ,为一般DC/DC变换器分岔。The precise discrete mapping of the voltage fed boost converter which is operated under the discontinuous mode(DCM)is proposed.Based on the mapping,the relationship between the voltage fed coefficient K and the bifurcation occurred in the converter was analyzed. Therefore,the range of the voltage fed coefficient K for the stability operation of the boost converter is given exactly.Bifurcation and chaos in the voltage fed boost converter is studied by simulation and experiment further.It will provide a reference method for modeling and analyzing bifurcation and chaos of general dc/dc converter.

关 键 词：DC/DC功率变换器 离散映射 分岔 混沌 

分 类 号：TM463[电气工程—电器]