物理学报2012，Vol.61Issue(11)：148-157,10.
直流-直流开关变换器分段光滑系统带权Lempel-Ziv复杂度分析
Analysis of weight Lempel-Ziv complexity in piecewise smooth systems of DC-DC switching converters
摘要
Abstract
A novel concept of switching block is presented via detecting the switching behavior of each switching period in piecewise smooth system of DC-DC switching converter,and logical arithmetic method of computer is used to obtain decimal system from binary system, so complex degree of the system during one switching period is quantized as switching block and the symbolic time sequence of the piece smooth system is established.Weight Lempel-Ziv（L-Z） complexity is derived based on the L-Z complexity and the symbolic time sequence,and the qualitative analysis of nonlinear and complex degree in piecewise smooth system from symbolic time sequence with single variable is carried out.The motion rule and the dynamics structure of the whole system are revealed.Finally,The present current mode controlled buck converter is studied as an example to establish symbolic time sequence and to illustrate the applications of weight L-Z complexity.关键词
直流-直流开关变换器/开关模块/符号时间序列/带权Lempel-Ziv复杂度Key words
DC-DC switching converter/switching block/symbolic time sequence/weight Lempel-Ziv complexity分类
信息技术与安全科学引用本文复制引用
谢帆,杨汝,张波..直流-直流开关变换器分段光滑系统带权Lempel-Ziv复杂度分析[J].物理学报,2012,61(11):148-157,10.基金项目
国家自然科学基金重点项目 （）
国家自然科学基金（批准号：50777009）资助的课题 （）
