Suppressing magneto-mechanical vibrations and noise in magnetostriction variation for three-phase power transformers

Chang Hung Hsu, Jui Jung Liu, Chao Ming Fu, Yi Mei Huang, Chia Wen Chang, Shan Jen Cheng

Research output: Contribution to journalArticlepeer-review

8 Scopus citations

Abstract

This study investigated the effect of magnetostriction-induced core magnetomechanical vibrations and noise on the magnetic properties of power transformers. The magnetostriction of grain-oriented Si steels was found to be extremely sensitive to compressive stress applied along the rolling direction and to tensile stress applied along the transverse direction. The compressive stress increased the variation in the magnitude of magnetostriction, which is correlated with core vibration and noise. A 2D model of the power transformer was used to simulate the noise and vibration variables through a finite element analysis.

Original languageEnglish
Article number17D524
JournalJournal of Applied Physics
Volume117
Issue number17
DOIs
StatePublished - 7 May 2015

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