A 3D finite-element computation of eddy currents and losses in the stator end laminations of large synchronous machines

Author

Silva, Viviane Cristine ; Meunier, Gérard ; Foggia, Albert

Author_Institution

Dept. de Engenharia de Energia e Automacao Eletricas, Sao Paulo Univ., Brazil

Volume

32

Issue

3

fYear

1996

fDate

5/1/1996 12:00:00 AM

Firstpage

1569

Lastpage

1572

Abstract

Eddy current losses due to axial fluxes are computed in the stator end laminations of a salient-pole synchronous machine under open-circuit operating conditions. The calculation is carried out with the aid of a 3D finite-element package which uses a linear T-φ formulation. The domain spans a full pole pitch of the machine. The flux densities computed in the end region at points outside the stator core are compared with experimental measurements. The results and the limitations of the model are discussed

Keywords

eddy current losses; electric machine analysis computing; finite element analysis; laminations; machine theory; magnetic flux; stators; synchronous machines; 3D finite-element package; eddy current losses; flux densities; linear T-φ formulation; open-circuit operating conditions; salient-pole synchronous machine; stator core; stator end laminations; Density measurement; Eddy currents; Finite element methods; Lamination; Magnetic domains; Packaging; Packaging machines; Permeability; Saturation magnetization; Stator cores; Synchronous generators; Synchronous machines;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.497551

Filename

497551