Microstructure Role in Permanent Magnet Eddy Current Losses
Applied Physics
2020-06-02 v1 Analysis of PDEs
Abstract
The impact of granular microstructure in permanent magnets on eddy current losses are investigated. A numerical homogenization procedure for electrical conductivity is defined. Then, an approximated simple analytical model for the homogenized conductivity able to capture the main features of the geometrical and material dependences is derived. Finally eddy current losses analytical calculations are given, and the two asymptotic expressions for losses in the stationary conduction limit and advanced skin effect limit are derived and discussed.
Cite
@article{arxiv.2006.01092,
title = {Microstructure Role in Permanent Magnet Eddy Current Losses},
author = {Salvatore Perna and Thomas Schrefl and Claudio Serpico and Johann Fischbacher and Andrea Del Pizzo},
journal= {arXiv preprint arXiv:2006.01092},
year = {2020}
}
Comments
5 pages, 7 figures