交流电机旋转磁场的教学研究

“电机学”课程中的旋转磁场是交流电机理论的一个重要的知识点。但是由于磁场本身比较抽象，它成为教学中的一个难点。为此，笔者在本知识点的教学中设计了研究性训练环节，让学生应用电磁场有限元数值计算软件进行交流电机电磁场的数值计算，分析旋转磁场，脉振磁场和多极磁场的特点，归纳总结出旋转磁场的规律。这种研究性训练促进了学生对交流...

Teaching Research on Rotating Magnetic Field of the 3-Phase AC Machines

In the course of Electrical Machinery, the rotating magnetic field is an important concept in AC machines theory. Good comprehension of it is helpful for students in learning the succeeding knowledge. However, the magnetic field is abstract, thus making this concep difficult to understand. So the research training is designed in this part of teaching. By appling the finite element electromagnetic field calculation software, students calculate the field of AC windings and analyse the characteristics of rotating magnetic field, pulsate field and multi-pole field, then summarize the rule of the rotating magnetic field. This research training is helpful for students to understand the rotating magnetic field theory.