2023 Fiscal Year Final Research Report
Development of a novel high-speed motor in which the rotor rotates faster than the rotating magnetic field
| Project/Area Number |
21K04008
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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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| Review Section |
Basic Section 21010:Power engineering-related
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| Research Institution | Tokyo City University |
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Principal Investigator |
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| Project Period (FY) |
2021-04-01 – 2024-03-31
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| Keywords | 電動機 / リラクタンスモータ / バーニアモータ / 超高速 |
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| Outline of Final Research Achievements |
In this research project, we proposed a new high-speed motor, a speed-increasing type Vernier motor, in which the rotor rotates faster than the rotating magnetic field, and clarified its characteristics through analysis and experiments using a prototype motor.
Since the rotor and the rotating magnetic field rotate at different speeds in the proposed motor, the dq coordinate system used in conventional synchronous motors cannot be used. Therefore, we defined a new coordinate system that rotates synchronously with the hypothetical rotor, and proposed a method to calculate the characteristics using the inductance on the coordinate system. As a result, the characteristics of the proposed motor can be expressed in the same way as those of a conventional synchronous motor. The validity of the coordinate system that rotates synchronously with the virtual rotor was verified by experiments using a prototype motor, and the results were in good agreement with the analytical results.
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| Free Research Field |
パワーエレクトロニクス
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| Academic Significance and Societal Importance of the Research Achievements |
提案する増速形バーニアモータは，これまでの同期機では困難であった多極の巻線を用いて高速モータを構成することを可能にする。多極の巻線を用いることで，巻線のコイルエンドを小さくしたり，固定子鉄心のヨーク厚を薄くして巻線を巻くことができる部分を増やしたりすることができる。したがって，単位体積当たりの出力を向上できる可能性があり，モータを搭載する機器の小型化・軽量化に貢献できる。本研究課題では提案モータの基本的な構造と特性を明らかにするとともに，ベクトル制御が可能であることを試作機を用いた実験によって示すことができた。これらの研究成果は，今後，提案モータの実用化を検討する上で基礎となると考えられる。
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