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 language | English |
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Title of host publication | 2021 IEEE International Electric Machines and Drives Conference, IEMDC 2021 |
ISBN (Electronic) | 9781665405102 |
DOIs | |
State | Published - May 17 2021 |
Event | 2021 IEEE International Electric Machines and Drives Conference, IEMDC 2021 - Hartford, United States Duration: May 17 2021 → May 20 2021 |
Publication series
Name | 2021 IEEE International Electric Machines and Drives Conference, IEMDC 2021 |
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Conference
Conference | 2021 IEEE International Electric Machines and Drives Conference, IEMDC 2021 |
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Country/Territory | United States |
City | Hartford |
Period | 5/17/21 → 5/20/21 |
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.
Funders | Funder number |
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National Science Foundation (NSF) | |
Directorate for Computer and Information Science and Engineering | 1809876 |
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