Axial Flux Permanent Magnet-Hysteresis Motor with Single Disc Rotor: Torque Comparison of Different Structure

Yousefi Javid, Hashem; Yousefi Javid, Aydin

doi:10.30503/eecs.2024.458400.1052

Axial Flux Permanent Magnet-Hysteresis Motor with Single Disc Rotor: Torque Comparison of Different Structure

Document Type : Original Article

Authors

Hashem Yousefi Javid ¹

Aydin Yousefi Javid ²

¹ department of electrical engineering, iran university of science and technology

² department of electrical engneering, islamic azad university south tehran branch

10.30503/eecs.2024.458400.1052

Abstract

Axial flux hysteresis motor has the advantages of hysteresis motors such as self-starting, constant torque, smooth operation, no oscillation and noise, and also the advantages of axial flux structure such as high torque in the same dimension, adjustable air gap and multi-stack. However, due to the low energy level of the hysteresis material, this type of motor has a low torque level. In this paper, to improve torque, various proposed structures have been implemented on the disc of axial flux hysteresis motor and subsequently compared. According to the results, the motor with the highest torque in the same dimensions and simple structure is preferred. To model the hysteresis motor, the elliptical method has been used considering its speed and accuracy. Then, the analytical equations governing the proposed structures are presented. Finally, the torque calculations of different structures have been performed and analyzed using the finite element analysis method. The results show that in some of the proposed structures, the torque has improved significantly compared to the original hysteresis motor.

Keywords

Axial flux motor

Finite element analysis

Hysteresis motor

Permanent magnet motor

Torque calculation

Subjects