Simulation of capacitor discharge magnetisation

Author

Jewell, G.W. ; Howe, D. ; Birch, T.S.

Author_Institution

Sheffield Univ., UK

Volume

26

Issue

5

fYear

1990

fDate

9/1/1990 12:00:00 AM

Firstpage

1638

Lastpage

1640

Abstract

A technique for simulating the impulse magnetization of permanent magnets is presented. The method involves the simultaneous solution of the differential equation governing the capacitor-discharge/magnetizing fixture circuit and the nonlinear diffusion equation governing the transient electromagnetic field. It enables the distribution of magnetization throughout the magnet to be estimated, a prerequisite for predicting the subsequent magnetic field. The technique is applied to the study of factors which influence the magnetization of multipole fields on sintered NdFeB magnets

Keywords

boron alloys; differential equations; ferromagnetic properties of substances; iron alloys; magnetisation; neodymium alloys; permanent magnets; simulation; capacitor discharge magnetisation; capacitor-discharge/magnetizing fixture circuit; differential equation; impulse magnetization; multipole fields; nonlinear diffusion equation; permanent magnets; sintered NdFeB magnets; transient electromagnetic field; Capacitors; Circuit simulation; Differential equations; Electromagnetic fields; Electromagnetic transients; Fixtures; Magnetic circuits; Magnetization; Nonlinear equations; Permanent magnets;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.104473

Filename

104473