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To solve the problems of permanent magnet vernier motor（PMVM） with high torque density and high power density, the performance of PMVM was compared with that of traditional permanent magnet synchronous motor（PMSM）. The structure and working principle of 6-slot/32-pole split-tooth PMVM were introduced. The air-gap flux density of PM field and armature reaction magnetic field（ARMF）, the no-load EMF, the torque and the loss of 6-slot/32-pole split-tooth PMVM were analyzed by finite element simulation software of JMAG and quantitatively compared with those of two traditional PMSMs with the same diameter, stack length and number of stator teeth. The results show that compared with 6-slot/32-pole and 6-slot/4-pole PMSMs, the average torque of 6-slot/32-pole split-tooth PMVM is increased by about 45.0% and 76.2%, and the torque ripple is decreased about 90.5% and 95.0%, respectively. The results reveal that the split-tooth PMVM has merits of high torque density and low cogging torque. However, the air-gap flux density of the split-tooth PMVM contains large number of harmonics with different pole-pairs and rotation speeds, which leads to higher iron loss and PM eddy current loss. [ABSTRACT FROM AUTHOR]

Copyright of Electric Machines & Control / Dianji Yu Kongzhi Xuebao is the property of Electric Machines & Control and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Electric Machines & Control / Dianji Yu Kongzhi Xuebao is the property of Electric Machines & Control and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Electric Machines & Control / Dianji Yu Kongzhi Xuebao is the property of Electric Machines & Control and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)