Noise and vibration reduction of swithced reluctance motor for hybrid vehicles

2016 Fiscal Year Final Research Report

• Project/Area Number: 15K13920
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Power engineering/Power conversion/Electric machinery
• Research Institution: Tokyo Institute of Technology
• Principal Investigator: Chiba Akira 東京工業大学, 工学院, 教授 (30207287)
• Research Collaborator: KIYOTA Kyohei 東京工業大学, ポスドク
• Project Period (FY): 2015-04-01 – 2017-03-31
• Keywords: スイッチドリラクタンスモータ / 騒音低減 / 振動低減 / 力の和 / SRモータ

Outline of Final Research Achievements

The noise and vibration reduction of switched reluctance motor has been investigated for last several decades, however, the existing methods are limited. Three years ago, we have found a current waveform to reduce the acoustic noise effectively. The principle is simple, flattening the sum of three-phase radial forces. If stator yoke is rigid, then noise and vibration are reduced.
In this project, current waveform is generated considering up to 4th harmonic components and these phase shift to reduce the rms value of the current, so that efficiency is improved. A novel current waveform has been found to reduce the sum of radial forces.

Free Research Field

電気機器