Analysis of Torque Production in Axial-flux Vernier PM Machines of the MAGNUS Type

Murat G. Kesgin, Peng Han, Damien Lawhorn, Dan M. Ionel

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

10 Scopus citations

Abstract

The paper presents a study of the torque production in a novel vernier-type axial-flux permanent magnet (PM) machine topology named MAGNUS. Two computational methods are employed, one based on the 3D FEA Maxwell stress calculations on individual stator and rotor components and one based on the analytical derivation of the air-gap flux density harmonics. Examples are provided for a design with a 40-pole spoke-type PM rotor and two stators, one active including a 3-phase winding with 6 concentrated coils wound around main teeth in a single layer arrangement and a second stator that has neither coils nor main slots and is profiled towards the airgap in the same way as the active stator. It is shown that auxiliary small teeth included in the stator main teeth yield a significant increase in the output torque and that the profiled stator has a lower contribution than the active stator to the total torque. A brief report on the ongoing development of a prototype motor is included.

Original languageEnglish
Title of host publication2021 IEEE International Electric Machines and Drives Conference, IEMDC 2021
ISBN (Electronic)9781665405102
DOIs
StatePublished - May 17 2021
Event2021 IEEE International Electric Machines and Drives Conference, IEMDC 2021 - Hartford, United States
Duration: May 17 2021May 20 2021

Publication series

Name2021 IEEE International Electric Machines and Drives Conference, IEMDC 2021

Conference

Conference2021 IEEE International Electric Machines and Drives Conference, IEMDC 2021
Country/TerritoryUnited States
CityHartford
Period5/17/215/20/21

Bibliographical note

Publisher Copyright:
© 2021 IEEE.

Funding

This material is based upon work supported by the National Science Foundation (NSF) under Grant No. 1809876. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of the NSF. The support of University of Kentucky, the L. Stanley Pigman Endowment, and of ANSYS, Inc. is also gratefully acknowledged.

FundersFunder number
National Science Foundation (NSF)
Directorate for Computer and Information Science and Engineering1809876

    Keywords

    • MAGNUS
    • Vernier-type
    • axial-flux permanent magnet machine
    • high-torque

    ASJC Scopus subject areas

    • Energy Engineering and Power Technology
    • Electrical and Electronic Engineering
    • Mechanical Engineering
    • Safety, Risk, Reliability and Quality

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