An improved magnetic equivalent circuit method for predicting the characteristics of highly saturated electromagnetic devices

Author

Moallem, M. ; Dawson, G.E.

Author_Institution

Dept. of Electr. Eng., Isfahan Univ. of Technol., Iran

Volume

34

Issue

5

fYear

1998

fDate

9/1/1998 12:00:00 AM

Firstpage

3632

Lastpage

3635

Abstract

The magnetic equivalent circuit (MEC) method has been used to model the nonlinear magnetic field in electromagnetic devices for steady-state and dynamic conditions. However, for highly saturated electromagnetic devices, the conventional MEC method is inaccurate in predicting device characteristics. With experience gained from the finite element (FE) method, the MEC method can be modified to provide significant accuracy improvement in the field solution results. The main modification is done in the modeling of the highly saturated regions. The improved magnetic equivalent circuit (IMEC) is used to predict the characteristics of a switched reluctance motor (SRM). The results from IMEC are compared with those obtained by conventional MEC, FE methods and measurements

Keywords

equivalent circuits; machine theory; magnetic circuits; magnetic fields; reluctance motors; SRM characteristics prediction; accuracy improvement; dynamic conditions; highly-saturated electromagnetic devices; improved magnetic equivalent circuit method; nonlinear magnetic field; steady-state conditions; switched reluctance motor; Electromagnetic devices; Electromagnetic modeling; Equivalent circuits; Finite element methods; Magnetic devices; Nonlinear magnetics; Reluctance motors; Saturation magnetization; Steady-state; Switching circuits;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.717858

Filename

717858