2015 Fiscal Year Final Research Report
Optimal design of a single-phase capacitor-run premium-efficiency permanent-magnet motor without an inverter
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 |
Section | 一般 |
Research Field |
Power engineering/Power conversion/Electric machinery
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Research Institution | Ibaraki University |
Principal Investigator |
|
Co-Investigator(Kenkyū-buntansha) |
SODA Naoya 茨城大学, 工学部, 准教授 (80323210)
|
Research Collaborator |
KUBOTA Tomotsugu
NII Fumiya
NAGAYAMA Kazuki
FUKUDA Hirotaka
|
Project Period (FY) |
2013-04-01 – 2016-03-31
|
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 |
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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Free Research Field |
電気機器学
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