Eddy current analysis in the stator end structures of large capacity turbine generators

In the stator core end region of the large capacity turbine generators, the leakage magnetic flux induces eddy current loss in the metal structures. In this paper, the results of three-dimensional electromagnetic field analyses of the stator end structures are described. It is demonstrated that the...

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Bibliographic Details
Published in2009 International Conference on Electrical Machines and Systems : 15-18 November 2009 pp. 1 - 6
Main Authors Fujita, M., Ueda, T., Tokumasu, T., Nagakura, K., Kakiuchi, M., Otaka, T.
Format Conference Proceeding
LanguageEnglish
Japanese
Published IEEE 01.11.2009
Subjects
Coils
eddy current
Eddy currents
end region
Flanges
Magnetic analysis
Magnetic cores
Magnetic flux
Performance analysis
stator core
Stator cores
Steel
turbine generator
Turbines
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Summary:In the stator core end region of the large capacity turbine generators, the leakage magnetic flux induces eddy current loss in the metal structures. In this paper, the results of three-dimensional electromagnetic field analyses of the stator end structures are described. It is demonstrated that the eddy current loss dependency on the power factor can be explained with the phasor diagrams on the magnetic flux. Then the relationship between the end structure and the current source is discussed.
ISBN:9781424451777
1424451779
DOI:10.1109/ICEMS.2009.5382938