On modelling weakly coupled electromagnetic-thermal problems with prescribed nonlinear surface heat transfer

Author

Vong, P.K. ; Rodger, D. ; Coles, P.C. ; Lai, H.C.

Author_Institution

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

fYear

2002

fDate

4-7 June 2002

Firstpage

260

Lastpage

264

Abstract

Finite element modelling of coupled electromagnetic-thermal problems is described. The thermal sources can be eddy currents in conductors and winding I²R losses. Since the thermal time constants are relatively very long the coupled electromagnetic-thermal problem is solved as a weakly coupled system, using time-harmonic and time-transient thermal methods. Nonlinear surface convection and radiation terms are included in the thermal model. Results are compared with experimental measurements.

Keywords

asynchronous machines; conductors (electric); convection; eddy current losses; heat radiation; machine windings; nonlinear systems; thermal analysis; transient analysis; conductors; coupled electromagnetic-thermal problems; eddy currents; finite element modelling; induction machines; nonlinear surface convection; nonlinear surface radiation; thermal sources; thermal time constants; time-harmonic thermal methods; time-transient thermal methods; weakly coupled system; winding I²R losses;

fLanguage

English

Publisher

iet

Conference_Titel

Power Electronics, Machines and Drives, 2002. International Conference on (Conf. Publ. No. 487)

ISSN

0537-9989

Print_ISBN

0-85296-747-0

Type

conf

DOI

10.1049/cp:20020125

Filename

1031701