Evaluation of eddy current losses in axial flux permanent magnet (AFPM) machine with an ironless stator

Author

Wang, R. ; Kamper, M.J.

Author_Institution

Dept. of Electr. & Electron. Eng., Stellenbosch Univ., South Africa

Volume

2

fYear

2002

fDate

13-18 Oct. 2002

Firstpage

1289

Abstract

This paper presents a hybrid method for the calculation of eddy current losses in axial flux permanent magnet (AFPM) machines with an ironless stator. The method combines two-dimensional (2-D) finite element (FE) field solutions with the closed-form formula for eddy current loss calculation. The computational limitations of using 2-D FE modeling are discussed and a multi-slice and multi-layer FE model is developed to account for three-dimensional (3-D) effects. Relevant tests at high frequencies are carried out to validate the method. It is shown that the proposed method can predict the eddy current losses of ironless stator AFPM machines with reasonable accuracy.

Keywords

eddy current losses; finite element analysis; machine theory; magnetic flux; permanent magnet machines; stators; 2-D finite element field solutions; 3-D effects; 300 kW; axial flux PM machine; eddy current losses; finite element method; high frequency tests; ironless stator; multi-layer FE model; multi-slice FE model; permanent magnet machines; three-dimensional effects; two-dimensional finite element field solutions; Coils; Conductors; Eddy currents; Finite element methods; Frequency; Iron; Permanent magnets; Stators; Testing; Wires;

fLanguage

English

Publisher

ieee

Conference_Titel

Industry Applications Conference, 2002. 37th IAS Annual Meeting. Conference Record of the

Conference_Location

Pittsburgh, PA, USA

ISSN

0197-2618

Print_ISBN

0-7803-7420-7

Type

conf

DOI

10.1109/IAS.2002.1042724

Filename

1042724