Breadcrumb

 
 

Lamination core losses in motors with nonsinusoidal excitation with particular reference to PWM and SRM excitation waveforms

Title:

Lamination core losses in motors with nonsinusoidal excitation with particular reference to PWM and SRM excitation waveforms

Mthombeni, T.L. and Pillay, Pragasen (2005) Lamination core losses in motors with nonsinusoidal excitation with particular reference to PWM and SRM excitation waveforms. IEEE Transactions on Energy Conversion, 20 (4). pp. 836-843. ISSN 0885-8969

[img]
Preview
PDF - Accepted Version
525Kb

Official URL: http://dx.doi.org/10.1109/TEC.2005.847947

Abstract

The effects of varying the modulation index and the switching frequency on steel lamination core losses when excited with pulse width modulated waveforms are first investigated. A switched reluctance motor flux model is also developed and flux waveforms for different parts of the machine are synthesized. Using these flux waveforms, the paper presents the loss trend inside a switched reluctance machine, showing the core loss variation of the machine. The rotor was found to incur higher losses than any other part inside the switched reluctance motor. The paper further identifies the flux density harmonics that contribute to higher core losses in the rotor. Using the Fourier series, an attempt to predict core losses under switched reluctance motor flux density waveforms is done and the predicted results are compared with measurements. An Epstein frame was used for direct core loss measurements on 0.0140 in. [0.36 mm] commercial electrical steel; the methods and test bench used, along with test results are detailed in the paper.

Divisions:Concordia University > Faculty of Engineering and Computer Science > Electrical and Computer Engineering
Item Type:Article
Refereed:Yes
Authors:Mthombeni, T.L. and Pillay, Pragasen
Journal or Publication:IEEE Transactions on Energy Conversion
Date:November 2005
ID Code:6552
Deposited By:YOUCEF BERROUCHE
Deposited On:12 Apr 2010 15:18
Last Modified:08 Dec 2010 18:36
All items in Spectrum are protected by copyright, with all rights reserved. The use of items is governed by Spectrum's terms of access.

Repository Staff Only: item control page

Document Downloads

More statistics for this item...

Concordia University - Footer