Conducting screen utilisation in switched reluctance motors

Author

Dessouky, Y.G. ; Williams, B.W. ; Fletcher, J.E.

Author_Institution

Dept. of Control & Electr. Eng., Arab Acad. for Sci. & Technol., Alexandria, Egypt

Volume

14

Issue

4

fYear

1999

fDate

12/1/1999 12:00:00 AM

Firstpage

946

Lastpage

951

Abstract

In this paper, the effect of incorporating nonmagnetic electrical conducting screens in the motor topology of a switched reluctance motor is investigated. It is shown that screens on the rotor increase the motor torque by reducing the effective unaligned AC inductance due to the eddy currents induced in the screens. Screens added to the end laminations on both the rotor and stator stacks are shown to minimise the end flux leakage. Details of experimental and analytical methods used to evaluate the effects of conducting screens are provided and test results on a 500 W motor are included

Keywords

eddy currents; inductance; laminations; magnetic flux; magnetic leakage; reluctance motors; rotors; shielding; stators; torque; 500 W; conducting screen; eddy currents; end flux leakage minimisation; end laminations; motor torque increase; nonmagnetic electrical conducting screens; rotor screens; stator stacks; switched reluctance motors; unaligned AC inductance reduction; AC motors; Eddy currents; Inductance; Induction motors; Lamination; Reluctance motors; Rotors; Stators; Topology; Torque;

fLanguage

English

Journal_Title

Energy Conversion, IEEE Transactions on

Publisher

ieee

ISSN

0885-8969

Type

jour

DOI

10.1109/60.815012

Filename

815012