关键词: 电励磁, 同极电机, 结构设计, 数学建模, 系统仿真, 实验验证

Abstract:

In terms of the shortcomings in rotating iron consumption and rotor strength of the traditional high-speed permanent magnet motors, a kind of electric excitation type homopolar motor has been researched.The structure design of the motor including the solid rotor and armature winding has been completed, with its mathematical model established in three-phase stator coordinate system as well.A sensorless control strategy based on zero crossing detection method was studied, while the simulation analysis and experimental verification have been carried out.The results show that the motor system has good static and dynamic characteristics,verifying the practicable of the motor and the validity of the control method.

Key words: electrical excitation, homopolar motor, structure design, mathematical modeling, system simulation, experimental verification