Prediction of iron loss in magnetic laminations under PWM voltage supply
ISSN: 0332-1649
Article publication date: 13 November 2009
Abstract
Purpose
The purpose of this paper is to discuss a new method of iron loss estimation under pulse width modulation (PWM) converter supply. The proposed method concerns the longitudinal magnetisation.
Design/methodology/approach
A novel method of iron loss estimation applies values of iron losses that come from a single higher harmonic coexisting with a DC‐bias field. This method considers non‐linearity of ferromagnetic. Results of estimation are validated using experimental results.
Findings
The paper formulates that the dependence of iron losses come from harmonics, on DC‐bias field. Moreover, it formulates possibilities of their utilization to iron loss estimation in case of deformed flux. On the other hand, it discusses the influence of DC‐bias field on static hysteresis and classical eddy current losses.
Research limitations/implications
Experimental verification will still be needed as to the accuracy of the proposed model and applicability to various magnetic materials.
Practical implications
The paper provides an easy mathematical method of iron loss estimation, under PWM voltage supply.
Originality/value
The paper explains how to use an analytical method and results of iron losses come from single harmonics, obtained under coexistence with DC‐bias field, to iron loss estimation in case of longitudinal magnetisation where deformed magnetic flux occurs.
Keywords
Citation
Gmyrek, Z. (2009), "Prediction of iron loss in magnetic laminations under PWM voltage supply", COMPEL - The international journal for computation and mathematics in electrical and electronic engineering, Vol. 28 No. 6, pp. 1672-1687. https://doi.org/10.1108/03321640910999941
Publisher
:Emerald Group Publishing Limited
Copyright © 2009, Emerald Group Publishing Limited