电力电子教学中电力电子器件的教学方法研究

Teaching Method Research of Power Electronic Devices in Power Electronics

电力电子器件又称为功率半导体器件。在教学过程中,发现大部分学生仅仅能够记住电力电子器件的基本工作特性,而对于电力电子器件的工作原理,很多学生都表示难以理解和掌握。该文作者通过课堂教学实践和对教材的总结,发现对于没有半导体物理知识背景的工科学生来说,半导体PN结的知识在教授电力电子器件的工作原理中起着非常重要作用。基于此,该文探讨怎样将PN结的知识合理的运用到每种电力电子器件的教学当中。教学实践证明,将半导体PN结的知识作为电力电子器件的教学基础,并且从PN结的角度来分析和教授电力电子器件,不但可以扩展学生的知识面,最重要的是可以使学生有能力清晰地理解电力电子器件的工作原理。

Power electronic devices are semiconductor devices. During the teaching, it＇s found that most of students can remember performance characteristics of power electronics, but hardly undcrstand the operating principle. Based on the teaching practice and teaching material, the author found that knowledge of semiconductor PN junction plays an important role in teaching and learning of power electronic dcvices, especially for the studcnts of engineering who do not have the background of semiconductor physics. In this case, this paper investigates how to apply thc knowicdge of PN junction into teaching of power clcctronic devices. The teaching results prove that taking the knowledge of PN junction as the fundamental knowledge of power electric devices and analyzing the power electronic devices from the view of PN junction, can not only expand students＇ knowledge scope, but also can help student to clearly understand the operating principle of power electronic devices. Good teaching results have been obtained.