Title :
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
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;
Conference_Titel :
Electrical and Computer Engineering (CCECE), 2014 IEEE 27th Canadian Conference on
Conference_Location :
Toronto, ON
Print_ISBN :
978-1-4799-3099-9
DOI :
10.1109/CCECE.2014.6900937
