Study on Axial Gap Switched Reluctance Motor for Electric Vehicle Application

2015 Fiscal Year Final Research Report

• Project/Area Number: 25289067
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Partial Multi-year Fund
• Section: 一般
• Research Field: Power engineering/Power conversion/Electric machinery
• Research Institution: Tohoku University
• Principal Investigator: Ichinokura Osamu 東北大学, 工学(系)研究科(研究院), 教授 (20134017)
• Co-Investigator(Kenkyū-buntansha): NAKAMURA Kenji 東北大学, 大学院工学研究科, 准教授 (70323061) ; GOTO Hiroki 東北大学, 大学院工学研究科, 講師 (90374959)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Keywords: SRモータ / インホイールモータ / アキシャルギャップモータ / 電気自動車

Outline of Final Research Achievements

Rare earth materials such as neodymium and dysprosium are used in the motors for electric vehicles, that reduction is required for resource reasons. Switched reluctance(SR) motor is expected as rare earth material free motor. But it has less efficiency and output compared with conventional motor. Then, we focused on axial gap structure which magnetic flux flows to axial direction, and we applied the axial gap structure to SR motor. As a result, better performance of the proposed axial gap SR motor than that of is achieved than that of traditional rare earth motor. In addition, driving tests using small electric cars with two axial gap SR motors was done successfully.

Free Research Field

電気機器