| Project/Area Number |
16K06249
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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 | Hachinohe National College of Technology |
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Principal Investigator |
Nonaka Takashi 八戸工業高等専門学校, その他部局等, 教授 (00390386)
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| Project Period (FY) |
2016-04-01 – 2020-03-31
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| Project Status |
Completed (Fiscal Year 2019)
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| Budget Amount *help |
¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2019: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2018: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2017: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Fiscal Year 2016: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
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| Keywords | ワイヤレス給電 / 対数螺旋 / ワイヤレス電力伝送 / 電気機器工学 |
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| Outline of Final Research Achievements |
We proposed a logarithmic spiral power transmission coil for stable power supply over a wide range. In the coil that can be expressed by a function, the inductance and the coupling coefficient could be obtained by numerical calculation. Furthermore, as the resistance value of the coil, the DC resistance and the AC resistance due to the skin effect and the proximity effect were also calculated, and the Q value of the coil was calculated.
We examined the manufacturing method of the excitation circuit for practical use and the evaluation method of SAR by the electromagnetic field simulator considering the effect of electromagnetic field on the living body.
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| Academic Significance and Societal Importance of the Research Achievements |
本研究の対数螺旋のような形状を関数で記述できるコイルであれば、自己インダクタンス、相互インダクタンス、抵抗の計算が可能であり、電力伝送の送電電力や効率を予測することが可能となる。複雑なコイルでも形状を関数で記述できれば、計算でき、設計が可能となる。また、電磁界を発生する機器は、設計の段階で電磁界暴露の評価を行うことで、より安全、安心につながる製品を提供できることにつながる。
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