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2020 Fiscal Year Final Research Report

Novel noise and vibration reduction by radial force vector regulation

Research Project

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Project/Area Number 20K20350
Project/Area Number (Other) 18H05332 (2018-2019)
Research Category

Grant-in-Aid for Challenging Research (Pioneering)

Allocation TypeMulti-year Fund (2020)
Single-year Grants (2018-2019)
Review Section Medium-sized Section 21:Electrical and electronic engineering and related fields
Research InstitutionTokyo Institute of Technology

Principal Investigator

Chiba Akira  東京工業大学, 工学院, 教授 (30207287)

Co-Investigator(Kenkyū-buntansha) 朝間 淳一  静岡大学, 工学部, 准教授 (70447522)
Project Period (FY) 2018-06-29 – 2021-03-31
Keywords振動騒音 / 騒音低減 / スイッチドリラクタンスモータ / IPMモータ
Outline of Final Research Achievements

The radial forces acting on the motor are regulated so that acoustic noise and vibration can be reduced. This research is very original idea and challenging project. The researchers believe that reluctance motors with variable excitation level will be one of key motor technologies rather than rare-earth permanent magnet motors, because iron loss can be reduced and efficiency can be enhanced at low torque load. However, switched reluctance motors have significant vibration and acoustic noise. It is verified that the concept of the flattening radial force sum, that is the original idea, is quite effective in reducing acoustic noise and vibration in switched reluctance motors, and a permanent magnet motor.

Free Research Field

電気機器

Academic Significance and Societal Importance of the Research Achievements

申請者らが世界に先駆けて発見したラジアル力の和をフラットにし、騒音振動を低減する方法が、スイッチドリラクタンスモータだけでなく、レアアース永久磁石モータにも適用可であるかどうか挑戦し、可能であることを明らかにした。ラジアル方向力の和をフラットにする方法が一つの学術的な突破口となり米国、独国でも研究が開始され、自動車、産業機器に波及効果は大きい。申請者はこの分野でトップの5名のパネリストとして、講演を依頼されるとともに、モータ関係の著名人が名前を連ねる2020年IEEEのニコラテスラ賞を受賞した。50才台で受賞が決まった日本人は初めてであり、我が国の研究力アップに大いに貢献できた。

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Published: 2022-01-27  

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