Analysis of attractive force of pull-type single phase AC electromagnets

Author

Kawase, Y. ; Ito, S.

Author_Institution

Dept. of Electron. & Comput. Eng., Gifu Univ., Japan

Volume

26

Issue

2

fYear

1990

fDate

3/1/1990 12:00:00 AM

Firstpage

1046

Lastpage

1049

Abstract

The static pull force characteristics of an AC electromagnet are analyzed with a method which combines the equation of the motion of the armature and analysis of the magnetic field by the finite-element method. Using this method, it is possible to find out whether the AC electromagnet can pull up the armature or not. It is shown that a single-phase AC electromagnet can pull at least the same weight as the average magnetic force. The static pull force characteristics are affected by the restitution coefficient between armature core and stand. The validity of the proposed method for the design of optimal single-phase AC electromagnets is confirmed by experiment

Keywords

electromagnets; finite element analysis; magnetic fields; armature; attractive force; finite-element method; magnetic field; pull-type single phase AC electromagnets; restitution coefficient; static pull force characteristics; Design methodology; Electromagnetic analysis; Electromagnets; Equations; Finite element methods; Magnetic analysis; Magnetic cores; Magnetic fields; Magnetic forces; Motion analysis;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.106500

Filename

106500