Precise analytical modelling magnetic characteristics of switched reluctance motor drives using two-dimensional least squares

Author

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

Author_Institution

Dept. of Electr. Eng., Hong Kong Polytech. Univ., Kowloon, China

Volume

1

fYear

2003

fDate

15-19 June 2003

Firstpage

416

Abstract

The precise analytical modeling magnetic characteristics in the switched reluctance motors is presented in this study, based on the two-dimensional least squares. The proposed precise modeling is the analytical expression with respect to both the rotor position and the current. The coefficients in the expression are determined by the two dimensional least squares method. The derivations of the modelling are described in detail. Furthermore, the effect of the degree number of the fitting polynomials on the fitting errors is discussed. The fitting curves from the proposed modelling are fully in agreement with ones from the experiment. It validates the proposed modelling. This study is very helpful for accurate prediction of performance, simulation, torque control, as well as sensorless control of the switched reluctance motor drives.

Keywords

curve fitting; least squares approximations; machine control; machine theory; polynomials; reluctance motor drives; rotors; torque control; current; fitting curves; fitting errors; fitting polynomials; magnetic characteristics; rotor position; sensorless control; switched reluctance motor drives; torque control; two-dimensional least squares; Analytical models; Curve fitting; Least squares methods; Magnetic analysis; Magnetic switching; Polynomials; Predictive models; Reluctance motors; Rotors; Torque control;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Specialist Conference, 2003. PESC '03. 2003 IEEE 34th Annual

ISSN

0275-9306

Print_ISBN

0-7803-7754-0

Type

conf

DOI

10.1109/PESC.2003.1218328

Filename

1218328