Recent Advances in Analysis and Design of Axial Flux Permanent Magnet Electric Machines

Conference · Thu Oct 14 00:00:00 EDT 2021

OSTI ID:1825650

Nishanth, FNU ^[1]; Van Verdeghem, Joachim; Severson, Eric ^[2]

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1. University of Wisconsin-Madison; University of Minnesota
2. University of Wisconsin-Madison

Axial flux permanent magnet machines (AFPM) are popular for applications that benefit from high torque density and an axially compact form factor, such as in-wheel traction drives. Although the radial flux permanent magnet machine (RFPM) and the AFPM work based on the same underlying principle, the differences in their geometry introduce complexities in analysis of the AFPM. In this paper, the different AFPM design variants, their sizing approaches, computationally efficient design optimization techniques, and manufacturing techniques reported in literature are reviewed. In addition to classical AFPM machines, emerging variants and research opportunities with potential to push the boundaries of electric machine technology are reviewed. These include bearingless AFPMs, magnetically geared AFPMs, and combined radial-axial flux machines.

• Research Organization: University of Wisconsin-Madison
• Sponsoring Organization: USDOE Office of Energy Efficiency and Renewable Energy (EERE), Transportation Office. Vehicle Technologies Office
• DOE Contract Number: EE0008384
• OSTI ID: 1825650
• Country of Publication: United States
• Language: English