Increasing the Power Density of High-Speed Fan Drive Motors

被引：0
作者：
Enomoto, Yuji [1 ]
Yamakawa, Hironobu [1 ]
Ashida, Kisho [1 ]
机构：
[1] Research & Development Group, Hitachi, Ltd., 7-1-1, Omika-cho, Ibaraki, Hitachi
来源：
IEEJ Transactions on Industry Applications | 2024年 / 144卷 / 08期
关键词：
amorphous metal; cooling; iron loss; motor efficiency; outer rotor type motor; permanent magnet synchronous motor;
D O I：
10.1541/ieejias.144.622
中图分类号：
学科分类号：
摘要：
The electrification of power sources for various types of mobility is progressing. In particular, high power density is required for air mobility applications require high power density. To increase the output density of high-speed fan-drive motors, reducing the temperature rise of the motor is crucial. We investigated various techniques to improve the output density of the high-speed fan-drive motor using amorphous metal, which reduces iron loss during the high-frequency drive, and using an air-cooling structure with a high-speed fan. Thus, a maximum torque of 200 mN · m was achieved at a current density of 40 Arms/mm2; moreover, a power density of 13 kW/kg was obtained. This report presents the findings of our investigation and the evaluation results of a prototype motor. © 2024 The Institute of Electrical Engineers of Japan.
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页码：622 / 628
页数：6
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