Eddy current modeling of silicon steel for use on SPICE

Author

Fujiwara, Toru ; Tahara, Ryoichi

Author_Institution

Matsushita Electr. Ind. Co. Ltd., Kadoma, Japan

Volume

31

Issue

6

fYear

1995

fDate

11/1/1995 12:00:00 AM

Firstpage

4059

Lastpage

4061

Abstract

The relation between the equivalent eddy current field He and the instantaneous flux density rate dB/dt is experimentally obtained for current transformers made of silicon steel. The results show that He is proportional to (dB/dt)^0.6-0.7 in the operating frequency range (~100 Hz) of the current transformers. The ac B-H loop calculated by combining the proposed eddy current model with the Jiles-Atherton model agrees well with the measured data. In addition, this combined model allows magnetic component characteristics using SPICE to be simulated. The simulated secondary voltage waveforms of current transformers are in satisfactory agreement with the measured values

Keywords

SPICE; eddy currents; ferromagnetic materials; iron alloys; silicon alloys; transformer cores; 100 Hz; Fe-Si; Jiles-Atherton model; SPICE; current transformers; eddy current field; instantaneous flux density rate; magnetic component characteristics; operating frequency range; silicon steel; Current measurement; Current transformers; Eddy currents; Helium; Magnetic cores; Magnetic flux; SPICE; Saturation magnetization; Silicon; Steel;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.489861

Filename

489861