Title: Design low losses 6/8 switched reluctance motor

Authors: Eyhab El-Kharashi

Addresses: Electrical Power and Machines Department, Faculty of Engineering, Ain Shams University, 1 El-Sarayat Street, Abdou Basha Square, Abbasia, 11517, Cairo, Egypt

Abstract: The magnetic circuit of the conventional 6/8 switched reluctance motor (SRM) is re-designed to minimise the losses. The flux loops are shortened by making each two stator teeth incorporated in one magnetic circuit only. Subsequently, the flux does not flow in all parts of the stator yoke. The unused iron sections do not produce iron losses. Now, the stator consists of three separated sections which are fixed inside a non-magnetic cylinder. The copper losses also are decreased because less copper windings are used to produce the same amount of the output torque as the flux paths become short then the flux density increases. Analysis and comparison of the 6/8 SRM before and after the re-design process are presented. MATLAB/Simulink software is used to simulate the dynamic performance.

Keywords: finite element method; FEM; MATLAB; minimising losses; separated sections; near stator teeth; Simulink; switched reluctance motors; SRM; magnetic circuits; dynamic simulation.

DOI: 10.1504/IJPEC.2013.057034

International Journal of Power and Energy Conversion, 2013 Vol.4 No.4, pp.369 - 386

Accepted: 23 Oct 2012
Published online: 31 Mar 2014 *

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