An evaluation of alternative stator lamination materials for a high-speed, 1.5 MW, permanent magnet generator

Author

Paulides, Johannes J H ; Jewell, Geraint W. ; Howe, David

Author_Institution

Dept. of Electron. & Electr. Eng., Univ. of Sheffield, UK

Volume

40

Issue

4

fYear

2004

fDate

7/1/2004 12:00:00 AM

Firstpage

2041

Lastpage

2043

Abstract

The influence of the choice of stator lamination material on the iron loss in a high speed, high power permanent magnet generator, which is interfaced to a DC link via a simple bridge rectifier, is investigated. The rating of the generator is representative of machines which would be employed in ´more-electric´ ships and for embedded power generation. It is shown that the iron loss can be reduced considerably by employing 6.5% SiFe laminations rather than 3% SiFe. It is also shown that, due to the high harmonic content in the phase current waveforms, the iron loss density can vary widely over the stator laminations.

Keywords

iron; laminations; losses; magnetic materials; permanent magnet generators; rectifiers; stators; 5 MW; DC link; SiFe; bridge rectifier; embedded power generation; iron loss density; lamination materials; permanent magnet generator; phase current waveforms; stator; Bridges; DC generators; Distributed power generation; Iron; Lamination; Magnetic materials; Permanent magnets; Power generation; Rectifiers; Stators; 6.5% SiFe; Generator; iron loss; permanent magnet;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2004.832172

Filename

1325399