Trigonometry-Based Numerical Method to Compute Nonlinear Magnetic Characteristics in Switched Reluctance Motors

Author

Xue, X.D. ; Cheng, K.W.E. ; Ho, S.L. ; Kwok, K.F.

Author_Institution

Hong Kong Polytech. Univ.

Volume

43

Issue

4

fYear

2007

fDate

4/1/2007 12:00:00 AM

Firstpage

1845

Lastpage

1848

Abstract

Based on two-dimensional (2-D) trigonometry, a new numerical method is presented to compute the nonlinear magnetic and electromagnetic torque characteristics in switched reluctance motors (SRMs). In the proposed method, the mathematical model is composed of the 2-D truncated Fourier series. The coefficients can be determined from a small amount of given magnetic or torque data acquired by experiment or finite-element (FE) analysis. The computed and experimental results demonstrate that the proposed method can be used to precisely compute the nonlinear magnetic and torque characteristics in SRMs. Hence, this paper provides a valuable approach for performance prediction, design, simulation, and control of SRMs

Keywords

Fourier series; design engineering; finite element analysis; machine control; reluctance motors; torque; 2D trigonometry-based numerical method; 2D truncated Fourier series; electromagnetic torque characteristics; finite element analysis; magnetic-torque characteristics; mathematical model; nonlinear magnetic characteristics; switched reluctance motors; Finite element methods; Fourier series; Iron; Magnetic switching; Mathematical model; Nonlinear magnetics; Reluctance machines; Reluctance motors; Torque; Two dimensional displays; Model; nonlinear magnetics; switched reluctance motors; torque;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2007.892619

Filename

4137831