Improved formulations for rotational core losses in rotating electrical machines

Author

Zhu, Jian Guo ; Ramsden, Victor Stuart

Author_Institution

Fac. of Eng., Univ. of Technol., Sydney, NSW, Australia

Volume

34

Issue

4

fYear

1998

fDate

7/1/1998 12:00:00 AM

Firstpage

2234

Lastpage

2242

Abstract

This paper presents the measurement and modeling of rotational core losses in electrical steel sheets and rotating electrical machines. Novel formulations of rotational hysteresis, eddy current, and excess losses in electrical sheet steels with circular and elliptical rotating flux density vectors are reported. These formulations are used together with the finite element method to calculate the core losses in rotating electrical machines according to the distribution of the rotating magnetic field. Theoretical results are compared with the experiments on both electrical steel sheets and electrical machines

Keywords

eddy current losses; finite element analysis; magnetic cores; magnetic hysteresis; permanent magnet motors; Fe-Si; eddy current; electrical steel sheet; finite element method; hysteresis; rotating electrical machine; rotational core loss; Core loss; Density measurement; Eddy currents; Electric variables measurement; Electromagnetic measurements; Loss measurement; Magnetic field measurement; Magnetic hysteresis; Rotation measurement; Steel;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.703861

Filename

703861