An improved method for predicting iron losses in brushless permanent magnet DC drives

Author

Atallah, K. ; Zhu, Z.Q. ; Howe, D.

Author_Institution

Dept. of Electron. & Electr. Eng., Sheffield Univ., UK

Volume

28

Issue

5

fYear

1992

fDate

9/1/1992 12:00:00 AM

Firstpage

2997

Lastpage

2999

Abstract

A procedure has been developed to predict the stator iron loss of a brushless DC motor with due account of the operating condition of the drive system. Finite-element analysis is used to obtain a series of instantaneous magnetostatic field distributions within a motor, for which the instantaneous currents are derived from a dynamic simulation of the drive system. Analysis of the temporal and spatial variation of the flux density distribution then enables localized iron loss densities to be determined. It is shown that the iron loss changes markedly with the operating condition

Keywords

DC motors; electric drives; finite element analysis; magnetic leakage; permanent magnet motors; FEA; brushless DC motor; brushless permanent magnet DC drives; dynamic simulation; flux density distribution; iron losses; magnetostatic field distributions; spatial variation; temporal variation; Analytical models; Brushless DC motors; DC motors; Drives; Finite element methods; Iron; Magnetic analysis; Magnetic flux; Magnetostatics; Stators;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.179696

Filename

179696