| Project/Area Number |
25420240
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Power engineering/Power conversion/Electric machinery
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| Research Institution | Ibaraki University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
SODA Naoya 茨城大学, 工学部, 准教授 (80323210)
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| Research Collaborator |
KUBOTA Tomotsugu
NII Fumiya
NAGAYAMA Kazuki
FUKUDA Hirotaka
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| Project Period (FY) |
2013-04-01 – 2016-03-31
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| Project Status |
Completed (Fiscal Year 2015)
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| Budget Amount *help |
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2015: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2014: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Fiscal Year 2013: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
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| Keywords | 電気機器 / 省エネルギー機器 / 単相永久磁石モータ / プレミアム効率 / スーパープレミアム効率 / 自己始動 |
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| Outline of Final Research Achievements |
This study presents a small single-phase capacitor-run permanent-magnet motor with super premium efficiency. There is the trade-off relation between efficiency and starting torque in line-start permanent-magnet motors that have the braking torque by permanent magnets in starting. The small but high-efficiency single-phase capacitor-run permanent-magnet motor with fully starting capability has been designed, built and tested.
IE4 super-premium efficiency of the motor less than 0.12 kW is not presented. Standard IEC/EN 60034-30-1 on efficiency classes of line operated AC motors was published by IEC on March 6, 2014. The efficiency value of IE4 of 2-pole, 50 Hz, 0.12 kW motor is 66.5%. The rated output power 70 W of our motor is very low. Nevertheless, it has been found that the efficiency of our proposed motor with the excellent starting capability is 82.0%, and superior to 0.12 kW IE4 super-premium one.
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