A study on iron loss analysis method considering the harmonics of the flux density waveform using iron loss curves tested on Epstein samples

Author

Nam, Hyuk ; Ha, Kyung-Ho ; Lee, Jeong-Jong ; Hong, Jung-Pyo ; Kang, Gyu-Hong

Author_Institution

Dept. of Electr. Eng., Changwon Nat. Univ., Gyeongnam, South Korea

Volume

39

Issue

3

fYear

2003

fDate

5/1/2003 12:00:00 AM

Firstpage

1472

Lastpage

1475

Abstract

This paper deals with a study on an iron loss analysis method in the single-phase line-start permanent magnet synchronous motor. The iron loss is affected by the time rate of the change of magnetic flux density at the motor cores. The distribution and changes in magnetic flux densities of the motor are computed by using a two-dimensional finite element method. Discrete Fourier Transform (DFT) is used to analyze the magnetic flux density waveforms in each element of the analysis model. Iron losses in each element are evaluated using iron loss curves tested by an Epstein test apparatus. The total iron loss can be obtained by the summation of the iron losses in all the elements.

Keywords

discrete Fourier transforms; eddy current losses; finite element analysis; magnetic flux; magnetic leakage; permanent magnet motors; synchronous motors; 2D FEM; 2D finite element method; DFT; Epstein samples; Epstein test apparatus; PM synchronous motor; flux density waveform harmonics; iron loss analysis method; iron loss curves; magnetic flux density; permanent magnet synchronous motor; single-phase line-start motor; two-dimensional FEM; Discrete Fourier transforms; Distributed computing; Harmonic analysis; Iron; Magnetic analysis; Magnetic cores; Magnetic flux density; Permanent magnet motors; Synchronous motors; Testing;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2003.810198

Filename

1198502