摘要
基于Matlab软件平台,为电压模式控制Buck开关功率变换器建立了Simulink仿真模型,给出了几种混沌研究数值方法的实现算法,并通过编程计算绘出了变换器的时域波形、相轨、庞加莱截面、分岔图、最大Lyapunov指数谱、功率谱等,从而有效地显示了该系统丰富的动力学行为。其研究结果可以对开关功率变换器可靠性设计提供理论指导,其研究方法还可以运用于其他非线性系统的混沌分析。
Based on Matlab software, the Simulink model of voltage-mode controlled Buck converter was constructed, the algorithms of some numerical methods in Chaos research were given, and the time-domain waveforms, phase-space trajectory, poincar6 sections, bifurcation diagram, the largest Lyapunov exponents spectrum and power spectrums were drawn by Matlab programming, which can indicate the complex dynamic behaviors of the Buck converter. The results of this study can offer guidance to the reliable design of switching power converters, and the methods can also be extended to the study of Chaos in other nonlinear systems.
出处
《机电工程》
CAS
2007年第6期26-29,共4页
Journal of Mechanical & Electrical Engineering
基金
国家自然科学基金资助项目(60672023)
