Research on magnetostriction of grain-oriented electrical silicon-steel sheet

Abstract

Purpose

The magnetostriction of grain-oriented electrical silicon steel sheet is studied for the magnetic field direction along the rolling direction and deviating from it. The method of calculating the vibration of transformer is developed through COMSOL. The paper aims to discuss these issues.

Design/methodology/approach

Measurements of signals of magnetostriction and magnetic polarization, and calculation through software.

Findings

The angle between the magnetic field direction and the rolling direction does a great influence on magnetostriction strain.

Originality/value

The maximum λ _p-p of transversal magnetostriction is above 30 times more than the value when the angle is 0°. The transversal magnetostriction is a main reason of vibration increasing at the corner of transformer.

Citation

Bai, B. and Wang, J. (2014), "Research on magnetostriction of grain-oriented electrical silicon-steel sheet", COMPEL - The international journal for computation and mathematics in electrical and electronic engineering, Vol. 33 No. 1/2, pp. 28-37. https://doi.org/10.1108/COMPEL-11-2012-0343