张初文,董知非,倪玮,房俊龙.基于随机扩频的Buck-Boost变换器分岔与混沌现象的仿真分析[J].电测与仪表,2017,54(11):. Zhang Chuwen,Dong Zhifei,Ni Wei,Fang Junlong.The Simulation analysis of Bifurcation and Chaotic Phenomena in Buck-Boost Converter Based on Random Spread-Spectrum[J].Electrical Measurement & Instrumentation,2017,54(11):.
基于随机扩频的Buck-Boost变换器分岔与混沌现象的仿真分析
The Simulation analysis of Bifurcation and Chaotic Phenomena in Buck-Boost Converter Based on Random Spread-Spectrum
The random spread-spectrum technology is widely used in the Buck-Boost converter to reduce electromagnetic interference and the output voltage and current ripple,but it ignores the abundantly nonlinear phenomena. This paper analyzes the random spread-spectrum technology and the Buck-Boost converter accurate discrete iterative model,and explores the nonlinear phenomena of the Buck-Boost converter with random spread-spectrum technology. The bifurcation diagrams of the inductance current as the circuit parameter changes are drawn through the MATLAB programming,which proves that it has the plentiful nonlinear phenomena. It analyzes that spread-spectrum technology influence on nonlinear phenomena of Buck-Boost converter. In the context of the same circuit parameters,it discusses Buck-Boost converter bifurcation and chaotic phenomena in frequency with different range of random spread-spectrum technology. It provides theoretical foundation to circuit design.
