中南大学学报（自然科学版）2012，Vol.43Issue(3)：972-979,8.
电流模式控制Buck-Boost变换器建模及非线性现象仿真
Modeling and nonlinear phenomena simulation of current-mode controlled Buck-Boost converter
摘要
Abstract
According to the working characteristics of current-mode controlled Buck-Boost converter, the uniform mathematic model of converter was set up, two simulation models of converter worked in continuous conduction mode (CCM) and discontinuous conduction mode (DCM) was built by employing Matlab/Simulink soft. The simulation results were gained by using the two kinds of models. In the CCM model, the phenomenon of bifurcation and chaos were obtained with resistance L and reference current Iref varying; in DCM model, the phase diagrams were obtained by changing input voltage E, which proved the existence of chaotic phenomena. A PID controller was applied to eliminate the chaos phenomena in two models. All simulation results demonstrate that the chaos phenomena can be restrained by choosing appropriate parameters of PID controller.关键词
Buck-Boost变换器/建模/电流连续模式/电流断续模式/PID控制器/混沌Key words
Buck-Boost converter/ model/ continuous conduction mode (CCM)/ discontinuous conduction mode (DCM)/ PID controller/ chaos分类
信息技术与安全科学引用本文复制引用
袁雷,沈建清,肖飞..电流模式控制Buck-Boost变换器建模及非线性现象仿真[J].中南大学学报（自然科学版）,2012,43(3):972-979,8.基金项目
国家自然科学基金创新研究群体基金资助项目(50721063) （50721063）
国家自然科学基金资助项目(51077131,50737004) （51077131,50737004）
