Title :
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
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;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2012.2197017
