TY - GEN
T1 - Analysis and Reduction of Cogging Torque in Dual PM Vernier Machine with Irregular Split Teeth
AU - Huang, Hailin
AU - Li, Dawei
AU - Ren, Xiang
AU - Qu, Ronghai
N1 - Publisher Copyright:
© 2021 IEEE.
PY - 2021/5/17
Y1 - 2021/5/17
N2 - This paper investigates the performances of dual PM split tooth vernier machines (DP-STVMs). It has been proved that by adjusting the distribution of stator auxiliary teeth, the flux modulation effect and no-load back EMF of DP-STVMs can be enhanced. However, this irregular structure also changes the periodicity and increases the amplitude of cogging torque. To investigate the source of cogging torque in DP-STVMs, an analytical method based on airgap fields and Maxwell stress tenser method is used, which can easily present the contribution of each airgap field component to the cogging torque. Based on the analysis, novel cogging torque reduction methods are proposed in this paper. Compared to regular rotor skewing method, the proposed methods can achieve better suppression effect on cogging torque and less reduction on noload back EMF.
AB - This paper investigates the performances of dual PM split tooth vernier machines (DP-STVMs). It has been proved that by adjusting the distribution of stator auxiliary teeth, the flux modulation effect and no-load back EMF of DP-STVMs can be enhanced. However, this irregular structure also changes the periodicity and increases the amplitude of cogging torque. To investigate the source of cogging torque in DP-STVMs, an analytical method based on airgap fields and Maxwell stress tenser method is used, which can easily present the contribution of each airgap field component to the cogging torque. Based on the analysis, novel cogging torque reduction methods are proposed in this paper. Compared to regular rotor skewing method, the proposed methods can achieve better suppression effect on cogging torque and less reduction on noload back EMF.
KW - Cogging torque
KW - dual PM vernier machine
KW - flux modulation effect
KW - magnet contour
UR - https://www.scopus.com/pages/publications/85112857182
U2 - 10.1109/IEMDC47953.2021.9449510
DO - 10.1109/IEMDC47953.2021.9449510
M3 - Conference contribution
AN - SCOPUS:85112857182
T3 - 2021 IEEE International Electric Machines and Drives Conference, IEMDC 2021
BT - 2021 IEEE International Electric Machines and Drives Conference, IEMDC 2021
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2021 IEEE International Electric Machines and Drives Conference, IEMDC 2021
Y2 - 17 May 2021 through 20 May 2021
ER -