The two-winding transformer: an experimental method to obtain a wide frequency range equivalent circuit

Author

Cogitore, Bruno ; Keradec, Jean Pierre ; Barbaroux, Jean

Author_Institution

Lab. d´´Electrotech. de Grenoble, CNRS, St. Martin d´´Heres, France

Volume

43

Issue

2

fYear

1994

fDate

4/1/1994 12:00:00 AM

Firstpage

364

Lastpage

371

Abstract

A lumped-component equivalent circuit has been developed by our team to model the electric behavior of any two-winding transformer. This circuit is general: its topology is independent of shape, sizes, and technology chosen. Changing the sample results only in a change of numerical values. Moreover, this circuit is suitable in a wide frequency range: from dc up to, at least, one decade beyond the maximum working frequency of the transformer. The aim of this paper is to present an experimental method which allows all the component values of this equivalent circuit to be determined, using only external impedance measurements. The method is illustrated by one example and, to conclude, Bode plots related to the circuit are compared to the experimental ones

Keywords

Bode diagrams; coupled circuits; equivalent circuits; lumped parameter networks; power transformers; transfer functions; transformer magnetic circuits; Bode plots; component values; external impedance measurements; lumped-component equivalent circuit; magnetic coupling; two-winding transformer; Buildings; Circuit simulation; Circuit topology; Electric variables measurement; Electronic circuits; Equivalent circuits; Frequency; Impedance measurement; Shape; Software prototyping;

fLanguage

English

Journal_Title

Instrumentation and Measurement, IEEE Transactions on

Publisher

ieee

ISSN

0018-9456

Type

jour

DOI

10.1109/19.293449

Filename

293449