Computer modeling of rotating magnetic fields for teaching purpose

This paper proposes a teaching model and corresponding teaching strategy for rotating magnetic fields in AC machines, which describes the principles and characteristics of the rotating magnetic fields considering the cognitive features of students. For building the teaching model of rotating magnetic fields, the animation, visualization and man-machine interaction are comprehensively used to represent the space structure of magnetic path and windings of AC machines, variation of currents and magnetic fields with time and their space distribution and, especially, the principles and features of rotating magnetomotive force (MMF) in AC machines. It has been shown that students can more easily understand the complex and abstract concepts using the new teaching model.