Abstract
Axial flux permanent magnet (AFPM) synchronous motors are attractive for low speed direct drive systems because of their high specific torque. The present paper proposes a novel axial flux machine topology, called MAGNUS, obtained by combining a yokeless central stator type NS arrangement with two external high polarity spoke-rotors, resulting in very high flux concentration. The stator, which includes main and auxiliary teeth for air-gap profiling has a small number of concentrated coils. Two stator configurations are discussed, the first, a yokeless construction with coils wound around the teeth, and the second with coils placed around the stator core in a Gramme ring arrangement. Feasible slot pole combinations are identified. High torque densities are achievable owing to torque magnification achieved by air-gap profiling as well as flux concentration. Initial analysis indicates that this machine presents higher torque than a YASA machine, which currently holds a record for torque density.
Original language | English |
---|---|
Title of host publication | 2017 IEEE Energy Conversion Congress and Exposition, ECCE 2017 |
Pages | 1234-1239 |
Number of pages | 6 |
ISBN (Electronic) | 9781509029983 |
DOIs | |
State | Published - Nov 3 2017 |
Event | 9th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2017 - Cincinnati, United States Duration: Oct 1 2017 → Oct 5 2017 |
Publication series
Name | 2017 IEEE Energy Conversion Congress and Exposition, ECCE 2017 |
---|---|
Volume | 2017-January |
Conference
Conference | 9th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2017 |
---|---|
Country/Territory | United States |
City | Cincinnati |
Period | 10/1/17 → 10/5/17 |
Bibliographical note
Publisher Copyright:© 2017 IEEE.
Keywords
- Axial flux machine
- High polarity
- Spoke rotor
- Vernier machine
- Yokeless motor
ASJC Scopus subject areas
- Energy Engineering and Power Technology
- Electrical and Electronic Engineering
- Renewable Energy, Sustainability and the Environment
- Control and Optimization