Magnetic field analysis by finite element method taking rotational hysteresis into account

Author

Enokizono, Masato ; Yuki, Kenji ; Kanao, Shinichi

Author_Institution

Dept. of Electr. Eng., Oita Univ., Japan

Volume

30

Issue

5

fYear

1994

fDate

9/1/1994 12:00:00 AM

Firstpage

3375

Lastpage

3378

Abstract

In the conventional magnetic field analyses that are applied to such things as rotating machines, the magnetic properties of the arbitrary direction have been modelled by using the magnetic properties of the easy axis and its perpendicular direction. Such kind of numerical modeling can not exactly show the phase difference between the magnetic flux density B and the magnetic field strength H in the case of a rotating magnetic flux excitation. In this paper, the B- and H-values are measured as vector quantities under the rotating magnetic flux excitation. The magnetic properties of the material are expressed by the magnetic reluctivity tensor based on the measured results. This new expression is applied to the rotating magnetic field problem. As a result, it is shown that our new method is applicable to the problem in the case of the rotating magnetic flux excitation

Keywords

finite element analysis; machine theory; magnetic fields; magnetic hysteresis; finite element method; magnetic field analysis; magnetic field strength; magnetic flux density; magnetic properties; magnetic reluctivity tensor; numerical modeling; phase difference; rotating machines; rotating magnetic flux excitation; rotational hysteresis; vectors; Finite element methods; Magnetic analysis; Magnetic field measurement; Magnetic fields; Magnetic flux; Magnetic flux density; Magnetic materials; Magnetic properties; Numerical models; Rotating machines;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.312662

Filename

312662