Title :
Excess Loss Localization on the Hysteresis Curve
Author :
Almeida, Adriano A. ; Perassa, Laura S. ; Rodrigues, Daniel L. ; Nishikawa, Thomas S. P. ; Landgraf, Fernando J. G. ; Paolinelli, Sebastiao C. ; Martins, Ramon V.
Author_Institution :
Dept. de Eng. Metalurgica e de Mater., Escola Politec., Sao Paulo, Brazil
Abstract :
Two alloys of nonoriented electrical steel, with 2.45 and 3.3%Si, respectively, had their magnetic properties characterized in an Epstein frame. Hysteresis curves for total, quasi-static, and parasitic losses were plotted and overlapped to identify the region where the anomalous loss happens. It was observed that most anomalous loss is from the domain wall movement´s region and a smaller contribution from nucleation and annihilation regions.
Keywords :
magnetic domain walls; magnetic hysteresis; magnetic leakage; nucleation; steel; Epstein frame; annihilation; anomalous loss; domain wall movement region; excess loss localization; hysteresis curve; magnetic properties; nonoriented electrical steel; nucleation; parasitic losses; quasistatic losses; total losses; Energy dissipation; Grain size; Loss measurement; Magnetic hysteresis; Permeability; Steel; Anomalous loss; hysteresis curves; magnetic properties; nonoriented (NO);
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2013.2291836
