On modelling iron core nonlinearities

1 May 1993

journal article
Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Power Systems

Vol. 8 (2) , 417-425
https://doi.org/10.1109/59.260845

Abstract

An algorithm is presented for the computation of the saturation characteristics of transformer iron cores based on supplied conventional V/sub rms/-I/sub rms/ curves and no-load losses at rated frequency. Laboratory measurements on a steel sample were carried out. It is shown that the iron core losses are a nonlinear function of the applied voltage. Taking these losses into account improves the nonlinear flux-current characteristics.

Keywords

This publication has 7 references indexed in Scilit:

Fundamental and harmonic flux behaviour in a 100 KVA distribution transformer core
IEEE Transactions on Magnetics, 1983
Harmonic Impedance Measurements on Transformers
IEEE Transactions on Power Apparatus and Systems, 1981
Ferromagnetodynamics
Published by Springer Nature ,1981
A direct piecewise linearized approach to convert rms saturation characteristic to instantaneous saturation curve
IEEE Transactions on Magnetics, 1980
Power Transformer Core Behavior Under Transient Conditions
IEEE Transactions on Power Apparatus and Systems, 1971
Lumped-circuit models for nonlinear inductors exhibiting hysteresis loops
IEEE Transactions on Circuit Theory, 1970
Analytical approximation of dynamic hysteresis loop and its application to a series ferroresonant circuit
Proceedings of the Institution of Electrical Engineers, 1970