Effects of chopping on core losses and inductance profiles of SRM drives

Author

Arkadan, A.A. ; Shehadeh, H.H. ; Brown, R.H. ; Demerdash, N.A.O.

Author_Institution

Dept. of Electr. & Comput. Eng., Marquette Univ., Milwaukee, WI, USA

Volume

33

Issue

2

fYear

1997

fDate

3/1/1997 12:00:00 AM

Firstpage

2105

Lastpage

2108

Abstract

A coupled finite element-state space (CFE-SS) model of switched reluctance motor (SRM) drive systems is used to evaluate the impact of chopping on the machine performance characteristics. The model is used to predict the impact of chopping on the machine inductance profiles, armature currents, and core losses. The modeling environment utilizes an iterative approach which includes the full impact of nonlinearities on the machine magnetic circuit, that results in the nonsinusoidal flux density waveforms in the different parts of the machine, modeling approach is applied to a four phase SRM. Furthermore, the predicted results are verified by comparison to experimental data

Keywords

choppers (circuits); inductance; iterative methods; losses; machine theory; reluctance motor drives; SRM drives; armature currents; chopping effects; core losses; coupled finite element-state space model; four-phase SRM; inductance profiles; iterative modelling approach; machine magnetic circuit nonlinearities; nonsinusoidal flux density waveforms; performance characteristics; switched reluctance motor; Core loss; Finite element methods; Hysteresis motors; Inductance; Magnetic circuits; Magnetic flux; Magnetic separation; Reluctance machines; Reluctance motors; State-space methods;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.582738

Filename

582738