TY - GEN
T1 - Design and Analysis of Single-Stator Dual-Rotor Coreless Permanent Magnet Motor Based on Halbach Array
AU - Xu, Zhenyao
AU - Hua, Xianhang
AU - Zhang, Fengge
AU - Lee, Dong Hee
AU - Su, Chang
AU - Wang, Shuo
N1 - Publisher Copyright:
© 2025 Korean Institute of Electrical Engineers Electrical Machinery and Energy Conversion Systems Society.
PY - 2025
Y1 - 2025
N2 - There are strict requirements for the torque pulsation and efficiency of the motor in the field of mechanical processing. To further reduce the torque pulsation and improve efficiency, this paper proposes a single stator double rotor hollow cup permanent magnet synchronous motor (SSDRCPMSM). With different magnetization angles (45°, 60°, 90°) based on Halbach array is designed and compared with traditional coreless motor. In order to verify its effectiveness, the three-dimensional finite element method (FEM) is used to analyze the air gap flux density and torque. By comparing and analyzing the Halbach array motors with different magnetization angles, it is found that the motor with 45° magnetization angle has the best performance in output torque level and torque ripple suppression effect. It is confirmed that the 45° motor is taken as the research direction, and the thickness ratio of the rotor back iron and the permanent magnet is optimized. Finally, the optimal design scheme of the motor is obtained, And compared with the traditional coreless motor performance.
AB - There are strict requirements for the torque pulsation and efficiency of the motor in the field of mechanical processing. To further reduce the torque pulsation and improve efficiency, this paper proposes a single stator double rotor hollow cup permanent magnet synchronous motor (SSDRCPMSM). With different magnetization angles (45°, 60°, 90°) based on Halbach array is designed and compared with traditional coreless motor. In order to verify its effectiveness, the three-dimensional finite element method (FEM) is used to analyze the air gap flux density and torque. By comparing and analyzing the Halbach array motors with different magnetization angles, it is found that the motor with 45° magnetization angle has the best performance in output torque level and torque ripple suppression effect. It is confirmed that the 45° motor is taken as the research direction, and the thickness ratio of the rotor back iron and the permanent magnet is optimized. Finally, the optimal design scheme of the motor is obtained, And compared with the traditional coreless motor performance.
KW - air gap flux density
KW - coreloss motor
KW - Halbach
KW - permanent magnet synchronous motor
UR - https://www.scopus.com/pages/publications/105032898215
U2 - 10.23919/ICEMS66262.2025.11317577
DO - 10.23919/ICEMS66262.2025.11317577
M3 - Conference contribution
AN - SCOPUS:105032898215
T3 - ICEMS 2025 - 28th International Conference on Electrical Machines and Systems
SP - 625
EP - 630
BT - ICEMS 2025 - 28th International Conference on Electrical Machines and Systems
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 28th International Conference on Electrical Machines and Systems, ICEMS 2025
Y2 - 16 November 2025 through 19 November 2025
ER -