An economic solution for 3D coupled electromagnetic and thermal eddy current problems

Author

Sturgess, J.P. ; Preston, T.W.

Author_Institution

GEC Alsthom Eng. Res. Centre, Stafford, UK

Volume

28

Issue

2

fYear

1992

fDate

3/1/1992 12:00:00 AM

Firstpage

1267

Lastpage

1270

Abstract

A technique for the analysis of 3-D coupled electromagnetic and thermal problems is presented that makes use of the surface impedance technique for modeling solid, eddy-current-carrying conductors to substantially reduce the problem size. In particular cases, the electromagnetic and thermal problems can then be posed in separate domains, linked by their common surface. The application of this method to the calculation of the rotor surface temperature of a solid pole synchronous generator under negative-sequence fault conditions showed satisfactory agreement with test measurements

Keywords

eddy currents; electric impedance; electromagnetic fields; finite element analysis; synchronous generators; temperature distribution; 3D coupled problems; EM problems; FEM; eddy-current-carrying conductors; negative-sequence fault conditions; rotor surface temperature; solid pole synchronous generator; surface impedance technique; thermal eddy current problems; Conductors; Coupled mode analysis; Electromagnetic analysis; Electromagnetic coupling; Electromagnetic modeling; Rotors; Solid modeling; Surface impedance; Temperature; Thermal conductivity;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.123920

Filename

123920