open access

https://hdl.handle.net/2115/47696

Examination of an Interior Permanent Magnet Type Axial Gap Motor for the Hybrid Electric Vehicle

英語

permanent magnet synchronous motor

2011-10

IEEE

IEEE Transactions on Magnetics

47(10)

3602-3605

Hybrid electric vehicles (HEVs) that emit less carbon dioxide have attracted much attention and rapidly become widespread, but further popularization of HEVs requires further technical advancement of mounted traction motors. Accordingly, our research group focuses on axial gap motors that can realize high torque density. In this paper, an axial gap motor with a novel interior permanent magnet (IPM) rotor structure is proposed and an examination of the proposed motor at the actual motor size of an HEV is presented. For comparison, we selected the newest radial gap-type 60kW IPM synchronous motor equipped in the third-generation Toyota Prius. Under the condition that the size of the proposed motor be the same as the comparison motor, we confirmed through three-dimensional finite-element analysis that the proposed motor could output twice the maximum torque of the comparison motor. In addition, a comparison was made with a previously reported conventional IPM-type axial gap motor, and the proposed motor was found to be more effective in generating reluctance torque. Moreover, the proposed motor exhibited sufficient durability to irreversible demagnetization of the permanent magnets, to stress caused by rotating the rotor, and to unbalanced electromagnetic forces caused by axial rotor eccentricity.

学術雑誌論文

Accepted Manuscript

© 2011 IEEE. Reprinted, with permission, from Arakawa, T., Takemoto, M., Ogasawara, S., Inoue, K., Ozaki, O., Hojo, H., Mitani, H., Examination of an Interior Permanent Magnet Type Axial Gap Motor for the Hybrid Electric Vehicle, IEEE Transactions on Magnetics, Oct. 2011. This material is posted here with permission of the IEEE. Such permission of the IEEE does not in any way imply IEEE endorsement of any of Hokkaido University products or services. Internal or personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution must be obtained from the IEEE by writing to pubs-permissions@ieee.org. By choosing to view this document, you agree to all provisions of the copyright laws protecting it.

0018-9464