Eddy current losses in permanent magnets of permanent magnet synchronous machines — Analytical calculation methods and high order finite element analyses

Author

Schmidt, Erich ; Kaltenbacher, Manfred ; Wolfschluckner, Anton

Author_Institution

Inst. of Energy Syst. & Electr. Drives, Vienna Univ. of Technol., Vienna, Austria

fYear

2014

fDate

4-7 May 2014

Firstpage

1

Lastpage

5

Abstract

The paper presents analytical evaluation and high order finite element analyses of eddy current losses of permanent magnets used in permanent magnet excited synchronous machines. Both calculation methods are compared against their results for linear and rotational arrangements. The finite element analyses utilise different formulations with various orders of the shape functions by using an identical mesh discretisation. Therefore, the representation of skin depth and wave length can be discussed in detail.

Keywords

eddy current losses; finite element analysis; machine theory; permanent magnet machines; synchronous machines; analytical calculation methods; eddy current losses; high order finite element analyses; identical mesh discretisation; linear arrangements; permanent magnet excited synchronous machines; rotational arrangements; Air gaps; Eddy currents; Finite element analysis; Harmonic analysis; Permanent magnets; Shape;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical and Computer Engineering (CCECE), 2014 IEEE 27th Canadian Conference on

Conference_Location

Toronto, ON

ISSN

0840-7789

Print_ISBN

978-1-4799-3099-9

Type

conf

DOI

10.1109/CCECE.2014.6900937

Filename

6900937