Magnetostriction and the Influence of Harmonics in Flux Density in Electrical Steel

Author

Wenjie Gong ; Zhigao Zhang ; Ruifen Hou ; Hui Wang ; Zhiyi Xu ; Anli Lin ; Jian He ; Wen Fan ; Jingping Wang

Author_Institution

Nat. Inst. of Metrol., Beijing, China

Volume

51

Issue

11

fYear

2015

Firstpage

1

Lastpage

4

Abstract

Measurement of magnetostriction harmonics under stress is beneficial to clarify the relationship between magnetostriction and transformer noise. In this paper, a magntetostriction measuring system with small uncertainty is developed to measure the magnetostriction under a stress of ±20 MPa. The magnetostriction under sinusoidal and non-sinusoidal flux densities can be measured by digital waveform control. The components of magnetostriction harmonics and specific power loss at different percentages of the third harmonic in flux density and phase delay of the third harmonic with respect to the fundamental harmonic are investigated.

Keywords

magnetic flux; magnetic variables measurement; magnetostriction; measurement uncertainty; steel; digital waveform control; electrical steel; harmonics; magnetostriction; non-sinusoidal flux densities; sinusoidal flux densities; small uncertainty; specific power loss; stress; Delays; Harmonic analysis; Magnetostriction; Steel; Stress; Stress measurement; Electrical steel; harmonic; magnetostriction; specific total loss; stress;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2015.2440320

Filename

7116595