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Modelling of the steady state thermal behaviour of a permanent magnet direct current motor with commutator. 3D finite elements study

Published online by Cambridge University Press:  15 August 1999

R. Bernard ,
R. Glises ,
D. Chamagne ,
D. Cuchet  and
J. M. Kauffmann
R. Bernard
Affiliation:
ECIA Laboratoire Électricité-Électronique, B.P. 79, 25402 Audincourt Cedex, France
R. Glises*
Affiliation:
Université de Franche-Comté, Institut de Génie Énergétique, Parc technologique, 2 avenue Jean Moulin, 90000 Belfort, France
D. Chamagne
Affiliation:
Université de Franche-Comté, Institut de Génie Énergétique, Parc technologique, 2 avenue Jean Moulin, 90000 Belfort, France
D. Cuchet
Affiliation:
ECIA Laboratoire Électricité-Électronique, B.P. 79, 25402 Audincourt Cedex, France
J. M. Kauffmann
Affiliation:
Université de Franche-Comté, Institut de Génie Énergétique, Parc technologique, 2 avenue Jean Moulin, 90000 Belfort, France
*
[email protected]
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Abstract

The aim of this work concerns the development and the validation of a thermal steady state model applied to a permanent magnet direct current motor with commutator. The rated power of the machine is 120 W. Design has been realized thanks to the thermal modulus of the computation software with the finite element method Flux3D. It is shown in this work how it is possible to use only the heat equation to simulate the thermal behaviour of the motor. It implies calculating of new fluid conductivities (considering also all thermal modes) by comparison of calculated and experimental temperatures. To realize these 3D modelizations, it is necessary to know and to locate all the losses of the motor which are considered as thermal sources. The experimental temperatures are given by 40 chromel-alumel thermocouples of 100 μm diameter located in the rotor and the stator of the machine. Numerical computations use Dirichlet boundary layer conditions given by an IR camera.

Keywords

Type
Research Article
Information
The European Physical Journal - Applied Physics , Volume 7 , Issue 2 , August 1999 , pp. 127 - 136
Copyright
© EDP Sciences, 1999

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References

Glises, R., Hostache, G., Kauffmann, J.M., J. Phys. III France 4, 1723 (1994). CrossRef
R. Bernard, Ph.D. thesis, University of Franche-Comté, 1998.
J.B. Saulnier, Ph.D. thesis, University of Poitiers, 1980.
D. Roye, Ph.D. thesis, Institut National Polytechnique de Grenoble, 1983.
R. Glises, Machines électriques tournantes. Simulation du comportement thermique, D 3 760-1; D 3 760-7, Les Techniques de l'ingénieur, 11-1998.
Glises, R., Bernard, R., Chamagne, D., Kauffmann, J.M., J. Phys. III France 6, 1389 (1996). CrossRef