Abstract

The eddy current loss in the rotor shaft can be ignored in the low-speed motor. However, it becomes more and more significant as motor speed increases, in particular use of solid rotor for high-speed motor. This can cause serious problems such as temperature rise and then leading to demagnetization of permanent magnets. This paper proposes a new method to reduce eddy current loss by creating slots on the solid rotor shaft surface. The effect of different slot numbers and slot depths will be investigated and verified by 3D electromagnetic simulation. This technique shows reduction of the rotor shaft loss by 60% at 110krpm for the optimised case, which can improve the motor efficiency by 0.21%.

Original languageEnglish
Title of host publication2022 IEEE Transportation Electrification Conference and Expo, Asia-Pacific, ITEC Asia-Pacific 2022
Place of PublicationU. S. A.
PublisherIEEE
ISBN (Electronic)9781665492065
DOIs
Publication statusPublished - 2022
Event2022 IEEE Transportation Electrification Conference and Expo, Asia-Pacific, ITEC Asia-Pacific 2022 - Haining, China
Duration: 28 Oct 202231 Oct 2022

Publication series

Name2022 IEEE Transportation Electrification Conference and Expo, Asia-Pacific, ITEC Asia-Pacific 2022

Conference

Conference2022 IEEE Transportation Electrification Conference and Expo, Asia-Pacific, ITEC Asia-Pacific 2022
Country/TerritoryChina
CityHaining
Period28/10/2231/10/22

Keywords

  • Eddy current loss
  • high-speed motor
  • PMSM
  • solid rotor
  • surface mounted

ASJC Scopus subject areas

  • Mechanical Engineering
  • Electrical and Electronic Engineering
  • Control and Optimization
  • Transportation

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