中文摘要：

混沌是一种典型的非线性现象,广泛存在于电力电子变换器系统中。在电力电子技术的实验中引入PSIM软件,建立了电流反馈控制型Buck变换器的系统级模型,在改变反馈电路的参考电流情况下实现了对变换器混沌现象的仿真。通过对混沌系统的仿真实验,有助于学生了解电力电子的前沿技术,认知电力电子变换器的非线性本质,激发学习兴趣,提高创新能力。

英文摘要：

Chaos is a typical nonlinear phenomenon which widely exists in the power electronic converter system. By introducing the PSIM software into the power electronic technology experiments,we establish the systematical model of the current feedback controlled Buck converter. After that,the chaos phenomena were obtained by changing the reference current of the feedback circuit. Based on the chaotic system simulations,students could have a better grasp of the advanced power electronics technology and cognitive power electronic converter nonlinear nature as well as stimulate interest in learning and improves the ability of innovation.