Modelling and prediction of iron loss with complex flux waveforms

Author

Charton, J.T. ; Corda, J. ; Hughes, A. ; Stephenson, J.M. ; McClelland, M.L.

Author_Institution

Sch. of Electron. & Electr. Eng., Univ. of Leeds, UK

Volume

152

Issue

4

fYear

2005

fDate

7/8/2005 12:00:00 AM

Firstpage

862

Lastpage

870

Abstract

The paper describes the first phase of a project to improve the prediction and modelling of iron loss for use in the design of switched-reluctance (SR) machines. Earlier models are reviewed and the development of a comprehensive model is described. Its parameters are obtained from commonly available manufacturers´ data and this allows the prediction of not only average loss but also instantaneous power flow for a given flux waveform. Its validation against experimental measurements for sinusoidal and triangular fluxes up to 2 kHz, including superimposed DC bias, is demonstrated. The measurement work using toroidal specimens reveals some unexpected behaviour and a challenge to the measurement technique.

Keywords

eddy current losses; iron; machine theory; magnetic flux; magnetic hysteresis; magnetic leakage; reluctance machines; complex flux waveforms; eddy current; excess-loss components; instantaneous power flow; iron loss modelling; iron loss prediction; laminated steel; sinusoidal fluxes; static hysteresis; superimposed DC bias; switched-reluctance machines; toroidal specimens; triangular fluxes;

fLanguage

English

Journal_Title

Electric Power Applications, IEE Proceedings -

Publisher

iet

ISSN

1350-2352

Type

jour

DOI

10.1049/ip-epa:20045129

Filename

1468703