TY - GEN
T1 - Comparative Analysis and Torque Optimization of Three Types of Rotors in Permanent Magnet Synchronous Motors
AU - Hu, Jinming
AU - Cao, Jiwei
AU - Zhao, Fei
N1 - Publisher Copyright:
© 2026 IEEE.
PY - 2026
Y1 - 2026
N2 - This article investigates three different rotor structures of permanent magnet synchronous motors (PMSMs), spoke-type PM (STPM), surface-spoke-type PM (SSTPM) and interior-spoke-type PM (ISTPM) for high-torque-density applications. A comprehensive comparison and analysis are conducted on their electromagnetic performance under no-load, rated-load, and overload conditions. Furthermore, an improved SSTPM motor is proposed and optimized to reduce motor torque ripple and accommodate high-precision control applications. The results show that SSTPM-Ⅰ results in higher torque density and overload capacity, while SSTPM-Ⅱ can effectively suppress torque ripple.
AB - This article investigates three different rotor structures of permanent magnet synchronous motors (PMSMs), spoke-type PM (STPM), surface-spoke-type PM (SSTPM) and interior-spoke-type PM (ISTPM) for high-torque-density applications. A comprehensive comparison and analysis are conducted on their electromagnetic performance under no-load, rated-load, and overload conditions. Furthermore, an improved SSTPM motor is proposed and optimized to reduce motor torque ripple and accommodate high-precision control applications. The results show that SSTPM-Ⅰ results in higher torque density and overload capacity, while SSTPM-Ⅱ can effectively suppress torque ripple.
KW - Optimization
KW - permanent magnet synchronous motors
KW - torque density
KW - torque ripple
UR - https://www.scopus.com/pages/publications/105045629132
U2 - 10.1109/INTERMAGSHORTPAPERS68882.2026.11596054
DO - 10.1109/INTERMAGSHORTPAPERS68882.2026.11596054
M3 - 会议稿件
AN - SCOPUS:105045629132
T3 - 2026 IEEE International Magnetic Conference - Short Papers, INTERMAG Short Papers 2026 - Proceedings
BT - 2026 IEEE International Magnetic Conference - Short Papers, INTERMAG Short Papers 2026 - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2026 IEEE International Magnetic Conference - Short Papers, INTERMAG Short Papers 2026
Y2 - 13 April 2026 through 17 April 2026
ER -