Studies on Design Approach for Downsized and Weight-Reduced Permanent Magnet Motors utilizing Less Heavy Rare-Earth Elements
| Project/Area Number |
19560287
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
電力工学・電気機器工学
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| Research Institution | Nagoya Institute of Technology |
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Principal Investigator |
KOSAKA Takashi Nagoya Institute of Technology, 工学研究科, 准教授 (10324477)
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| Project Period (FY) |
2007 – 2008
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| Project Status |
Completed (Fiscal Year 2008)
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| Budget Amount *help |
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2008: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Fiscal Year 2007: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
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| Keywords | 希土類系永久磁石形同期モータ / 省重希土類構造設計 / 簡易熱伝導解析 / 磁場-熱連成解析 / 非線形簡易磁場解析 / 簡易熱伝道解析 |
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| Research Abstract |
The rare-earth magnet used in downsized and weight-reduced permanent magnet motors with high power density requires heavy rare-earth elements as additives providing with higher heat-resisting property to protect its demagnetization. For reducing the additives, a design approach for motor structure is important, in which a fast computation considering thermal distribution on permanent magnet is involved. We studied on and developed the thermal analysis approach for computing thermal distribution on permanent magnet, which was based on thermal circuit network and used losses obtained from finite element magnetic field analysis. Compared with heat conduction analysis by finite element method, the developed analysis approach made it possible to reduce its computation time by one-hundredth while keeping its computation accuracy same.
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Report
(3 results)
Research Products
(6 results)
