Title :
On modelling iron core nonlinearities
Author :
Neves, Washington L A ; Dommel, Hermann W.
Author_Institution :
Dept. of Electr. Eng., British Colombia Univ., Vancouver, BC, Canada
fDate :
5/1/1993 12:00:00 AM
Abstract :
An algorithm is presented for the computation of the saturation characteristics of transformer iron cores based on supplied conventional Vrms-Irms 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 :
iron alloys; losses; magnetic flux; silicon alloys; transformer cores; transformer testing; I-V characteristics; SiFe; algorithm; measurements; modelling; no-load losses; nonlinear flux-current characteristics; saturation characteristics; transformer iron cores; transformer steel; transformer testing; Circuit faults; Core loss; Hysteresis; Inductance; Iron; Laboratories; Power system simulation; Power transformer insulation; Testing; Transformer cores;
Journal_Title :
Power Systems, IEEE Transactions on
