| Project/Area Number |
22760212
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Power engineering/Power conversion/Electric machinery
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| Research Institution | Tohoku University (2011)
Okayama University (2010) |
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Principal Investigator |
MIYAGI Daisuke 東北大学, 大学院・工学研究科, 助教 (10346413)
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| Project Period (FY) |
2010 – 2011
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| Project Status |
Completed (Fiscal Year 2011)
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| Budget Amount *help |
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2011: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2010: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
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| Keywords | 電磁鋼鈑 / 鉄損推定 / 圧縮応力 / 直流偏磁 / 歪み波鉄損 / マイナーループ / ヒステリシス損 |
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| Research Abstract |
The measurement system was developed used for the measurement of the semi-static hysteresis loop (excitation frequency : 5mHz)of an electrical steel sheet under both dc-biased magnetization and compressive stress. The effect of the compressive stress on the hysteresis loss of minor loop which generated on the initial magnetization curve is examined. Irrespective of the largeness of compressive stress, the hysteresis loss of a minor loop of the non-oriented electrical steel sheet reaches the maximum when the DC biased magnetization of 1. 5T is applied. When the compressive stress of 5MPa is impressed, the increasing rate of the hysteresis loss of a minor loop decreases. Under the dc-biased magnetization above 1. 5T, when the compressive stress increases, the hysteresis loss of a minor loop hardly increases.
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