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ESTIMATION DES PERTES FER DANS LES MACHINES ELECTRIQUES.
MODELE D'HYSTERESIS LOSS SURFACE ET APPLICATION AUX MACHINES SYNCHRONES A AIMANTS.

Abstract : Following European directives inciting electrical motors manufacturers to replace engines with
poor efficiency in the near future, a high efficiency motor design policy was committed. However,
the preliminary evaluation, in Finite Element Method (FEM) simulation, of the efficiency, and in
particular the iron losses in the machine remains a difficult problem nowadays. An iron losses a
posteriori calculation module, named « Loss Surface », for the finite element software Flux2D™
has been developed since several years. This work proposes several improvements of LS
dynamical model. A new magnetic characterization by perform inverter has permitted to increase
the frequency data for the dynamical surface LS. A new formulation of dynamic contribution
identification has also been achieved. Finally, the gains are consistent. Two different
synchronous permanent magnet motors have been tested to evaluate the LS improvements on
complex structures. The first machine is used to test the effect of induction level on iron losses
evolution and the second, the frequency impact. Two physical phenomenon are as well as
studied in order to know theirs contributions on magnetic losses : the eddy-current distribution in
the magnet bulk, and the influence of punching stress on magnetic material proprieties.
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https://tel.archives-ouvertes.fr/tel-00169903
Contributor : Sylvie Garcia <>
Submitted on : Wednesday, September 5, 2007 - 2:16:01 PM
Last modification on : Thursday, November 19, 2020 - 1:00:25 PM
Long-term archiving on: : Thursday, April 8, 2010 - 9:41:30 PM

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  • HAL Id : tel-00169903, version 1

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Citation

Thierry Gautreau. ESTIMATION DES PERTES FER DANS LES MACHINES ELECTRIQUES.
MODELE D'HYSTERESIS LOSS SURFACE ET APPLICATION AUX MACHINES SYNCHRONES A AIMANTS.. Energie électrique. Institut National Polytechnique de Grenoble - INPG, 2005. Français. ⟨tel-00169903⟩

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