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Applications of Rare-Earth Permanent Magnet Structures to Electrical Machinery

Published online by Cambridge University Press:  21 February 2011

H.A. Leupold ,
A.S. Tilak ,
R.J. Marchand  and
D.A. Lagraffe
H.A. Leupold
Affiliation:
Army Research Laboratory Bartlett Hall, West Point, NY 10996, [email protected]
A.S. Tilak
Affiliation:
Army Research Laboratory Bartlett Hall, West Point, NY 10996, [email protected]
R.J. Marchand
Affiliation:
U.S. Military Academy Bartlett Hall, West Point, NY 10996, [email protected]
D.A. Lagraffe
Affiliation:
U.S. Military Academy Bartlett Hall, West Point, NY 10996, [email protected]
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Abstract

A variety of promising permanent magnet structures based upon the magic cylinder and magic mangle concepts are investigated with regard to their suitability for application to electrical generators and motors. Such structures feature high magnetic flux densities in large volumes relative to their masses and bulks as well as minimal stray fields and net magnetic moments. Magic mangles also afford small moments of inertia of their rotating elements thereby resulting in improved rotational responsiveness. One computer calculation showed that a small conventional electric generator can be replaced by a magic mangle with 70% more flux amplitude but with only one half the mass and bulk.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 577: Symposium H – Advanced Hard and Soft Magnetic Materials , 1999 , 265
Copyright
Copyright © Materials Research Society 1999

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References

REFERENCES

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