|Table of Contents|

 Amorphous alloys J-A model amendment(PDF)

[ISSN:1007-449X/CN:23-1 408/TM]

Issue:
2014年07
Page:
86-93
Research Field:
Publishing date:

Info

Title:
 Amorphous alloys J-A model amendment
Author(s):
LI Chao
XU Qi-feng
 College of Electrical Engineering and Automation,Fuzhou University,Fuzhou 350108,China
Keywords:
 hysteresis loopmodelingamorphous alloysJiles-Atherton theorytemperature characteris-ticsair gap
PACS:
TM 452
DOI:
-
Abstract:
 Abstract:Amorphous alloys have been widely employed in electrical engineering but there was no enough research on its temperature characteristics and the hysteresis of air gapped core model. The amorphous alloys hysteresis model including thermal effects was proposed by incorporating the temperature into the original J-A model. The influence of thermal expansion effect and magnetostrictive effect on magnetic core with air gap was analyzed. The formulae of magnetostriction coefficient and thermal expand coefficient were pro-
posed to correct the length of air gap. Finally,the amorphous alloys hysteresis model including thermal effects and air gap factors was proposed. A new design of air gapped amorphous core with stable temperature characteristics was proposed based on the new model. The experiments on a Fe一Ni-based amorphous core were conducted. The results show food agreement between the simulation and the experiment.

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Last Update: 2015-07-18