CAJ | 학술논문

电力电子电路与系统中普遍存在着分岔和混沌现象。论文对于工作在电流连续模式下的 Buck 变换器通过离散迭代映射建立非线性动力学模型。通过 Matlab／Simulink 仿真，从时域图相图及庞加莱截面图的角度对变换器中的分岔和混沌行为进行分析。改变参数，对系统时域图相图，庞加莱截面及根轨迹分布进行分析，对系统混沌分岔行为进行仿真，分析了参数变化时系统的稳定性。
전력전자전로여계통중보편존재착분차화혼돈현상。논문대우공작재전류련속모식하적 Buck 변환기통과리산질대영사건립비선성동역학모형。통과 Matlab／Simulink 방진，종시역도상도급방가래절면도적각도대변환기중적분차화혼돈행위진행분석。개변삼수，대계통시역도상도，방가래절면급근궤적분포진행분석，대계통혼돈분차행위진행방진，분석료삼수변화시계통적은정성。
Bifurcation and chaos ususally exist in power electronic circuits and systems .In this paper ,for the Buck con-verter in continuous current mode by discrete iterative map to establish nonlinear dynamics model ,through the Matlab/Simu-link simulation ,analysis of bifurcation of converter from time drawing phase diagram and Poincare section angle and chaotic behavior .Changing the parameters of system time domain diagram ,phase diagram ,Poincare section and the root locus dis-tribution are analyzed ,the simulation of the system is chaotic bifurcation ,stability analysis of system parameters change .