NDLI: Comparison of Nonoriented and Grain-Oriented Material in an Axial Flux Permanent-Magnet Machine

Content Provider	IEEE Xplore Digital Library
Author	Kowal, D. Sergeant, P. Dupre, L. Van den Bossche, A.
Copyright Year	1965
Abstract	The performance and iron losses of an axial flux permanent-magnet synchronous machine (AFPMSM) using nonoriented (NO) steel are compared with the performance and iron losses of an AFPMSM using grain-oriented (GO) material. The machine is modeled by several 2-D finite element models in circumferential direction, at different radii. The material model for the GO material is an anhysteretic anisotropic model based on the magnetic energy. The magnetic energy is computed by using several measured quasi-static BH-loops on an Epstein frame in seven directions starting from the rolling direction to the transverse direction. The losses are calculated a posteriori, based on the principles of loss separation and dynamic loop measurements. A loss model was made for each of the seven directions, assuming unidirectional fields. In comparison with the more usual NO material, both the saturation induction and the torque are higher with GO material. The magnetic field in the GO material is lower than for NO material in the major part of the iron, but higher in the tooth tips where the field is not in the rolling direction. The stator iron losses are about 7 times lower for the considered GO compared to the NO material.
Sponsorship	IEEE Magnetics Society
Starting Page	279
Ending Page	285
Page Count	7
File Size	968419
File Format	PDF
ISSN	00189464
Volume Number	46
Issue Number	2
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-02-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Magnetic materials Iron Performance loss Magnetic anisotropy Perpendicular magnetic anisotropy Magnetic separation Magnetic flux Saturation magnetization Magnetic field measurement Synchronous machines permanent magnet machines Finite element methods losses
Content Type	Text
Resource Type	Article
Subject	Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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