Transient heating and cooling analysis in an electromagnetic device

Author

Pinto, José Amékrico Dias ; Antunes, Carlos F Lemos ; Coimbra, A. Paulo Breda

Author_Institution

Dept. of Electr. Eng., Coimbra Univ., Portugal

Volume

30

Issue

5

fYear

1994

fDate

9/1/1994 12:00:00 AM

Firstpage

3339

Lastpage

3342

Abstract

This paper is concerned with the finite element formulation of the transient heating and cooling problem in an electromagnetic device. The formulation presented is illustrated with the temperature distribution produced in a large 3-phase induction motor with a closed-air-circuit ventilation scheme under different load and coolant velocity conditions. The eddy currents and the hysteresis losses contributions due to the temperature-rise were taken into account, as well as the linear dependency of the electric resistivity with temperature. The numeric results obtained were compared with the experimental values available, showing a very close agreement

Keywords

cooling; eddy currents; electromagnetic devices; finite element analysis; heat conduction; induction motors; losses; machine theory; temperature distribution; thermal analysis; transients; FEM; closed-air-circuit ventilation scheme; eddy currents; electric resistivity; electromagnetic device; finite element formulation; hysteresis losses; large 3-phase induction motor; temperature distribution; transient cooling analysis; transient heating analysis; Cooling; Electromagnetic analysis; Electromagnetic devices; Electromagnetic heating; Electromagnetic transients; Finite element methods; Induction motors; Temperature distribution; Transient analysis; Ventilation;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.312653

Filename

312653