Characterization and Modeling of a Current Transformer Working Under Thermal Stress

Author

Bui, A.T. ; Sixdenier, F. ; Morel, L. ; Burais, N.

Author_Institution

Lab. AMPERE, Univ. de Lyon, Villeurbanne, France

Volume

48

Issue

10

fYear

2012

Firstpage

2600

Lastpage

2604

Abstract

This paper focuses on the thermal stress on magnetic materials under Curie temperature. The influence of the temperature on static and dynamic major B(H) loops is studied. Then, the Jiles-Atherton (JA) model and “flux tube” model are used, in order to reproduce the static and dynamic hysteresis loops for a NiFe (80/20) alloy. For each temperature, the six model parameters are optimized from measurements. Finally, these parameters are used in order to reproduce the behavior of a current transformer. The simulation results are compared with measurements and discussed.

Keywords

Curie temperature; current transformers; electric current measurement; iron alloys; magnetic devices; magnetic hysteresis; nickel alloys; optimisation; thermal stresses; Curie temperature; Jiles-Atherton model; NiFe; NiFe alloy; current transformer behavior; current transformer characterization; current transformer modeling; dynamic hysteresis loop; flux tube model; magnetic materials; model parameters; optimization; static hysteresis loop; thermal stress; Current measurement; Current transformers; Magnetic hysteresis; Mathematical model; Resistance; Temperature; Temperature measurement; Current measurement; current transformers; hysteresis;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2012.2197017

Filename

6193213