Fast Analytical Determination of Aligned and Unaligned Flux Linkage in Switched Reluctance Motors Based on a Magnetic Circuit Model

Author

Mao, Shang-Hsun ; Dorrell, David ; Tsai, Mi-Ching

Author_Institution

Electr. Motor Technol. Res. Center, Nat. Cheng Kung Univ., Tainan

Volume

45

Issue

7

fYear

2009

fDate

7/1/2009 12:00:00 AM

Firstpage

2935

Lastpage

2942

Abstract

Because a switched reluctance motor has inherently nonlinear magnetic characteristics and a doubly salient pole structure, a finite-element analysis approach (FEA) is often adopted to obtain accurate magnetic representation. However, the solution time can be large for a FEA simulation if the mesh is detailed and/or many simulations are required. We propose a rapid analytical solution for determining the aligned and unaligned flux linkage using a magnetic circuit model. We present a simple method for obtaining the air-gap permeance for unaligned linkage. The results of our method agree well with FEA solutions.

Keywords

air gaps; finite element analysis; magnetic circuits; reluctance motors; FEA; air-gap permeance; aligned flux linkage; doubly salient pole structure; finite-element analysis approach; magnetic circuit model; nonlinear magnetic characteristics; switched reluctance motors; unaligned flux linkage; Flux linkage; magnetic circuit model; switched reluctance motor;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2009.2016087

Filename

5089913