西南交通大学学报2012，Vol.47Issue(3)：400-405,6.DOI:10.3969/j.issn.0258-2724.2012.03.008
谷值电流控制反激变换器的非线性现象
Nonlinear Analysis and Simulation of Valley Current Controlled Flyback Converter
摘要
Abstract
For parameter design of switching DC-DC converters, dynamic equations and a discrete mapping model of valley current controlled flyback converter were established, and its complex nonlinear dynamic behaviors were investigated using bifurcation diagram and Poincarfe map. In addition, the stability and bifurcation property for valley reference current and DC voltage were analyzed. The time-domain waveform and phase portrait were obtained through time domain models constructed under Matlab/Simulink. The results show that valley current controlled flyback converters have complex nonlinear dynamic behaviors. As circuit parameters vary, the converter changes from steady state to chaos by double period-double bifurcation and border-collision bifurcation.关键词
反激变换器/谷值电流控制/庞加莱映射/分岔图Key words
flyback converter/ valley current control/ Poincare map/ bifurcation diagram分类
信息技术与安全科学引用本文复制引用
何圣仲,许建平,吴松荣,周国华,王金平..谷值电流控制反激变换器的非线性现象[J].西南交通大学学报,2012,47(3):400-405,6.基金项目
国家自然科学基金资助项目(51177140) （51177140）
中央高校基本科研业务费专项资金资助项目(SWJTU11BR033,SWJTU11CX032) （SWJTU11BR033,SWJTU11CX032）
西南交通大学青年教师科研起步项目资助(2009Q011). （2009Q011）
