Title :
Time domain model for the ferromagnetic core, including the effects of hysteresis and eddy currents
Author_Institution :
Dept. of Electr. Eng., Univ. Federal da Paraiba, Brazil
fDate :
1/1/1991 12:00:00 AM
Abstract :
A time domain model for the ferromagnetic core is presented. The model includes the effects of hysteresis and eddy currents. Simulation of the nonlinear B-H trajectories is based on Preisach´s theory, and it requires only the limiting hysteresis loop as input data. The model has been checked against measurements of the inrush currents obtained for a small transformer. There is satisfactory agreement between the calculated and measured current transients.
Keywords :
eddy currents; ferromagnetism; magnetic hysteresis; transformer cores; transients; current transients; eddy currents; effects of hysteresis; ferromagnetic core; inrush currents; nonlinear B-H trajectories; time domain model; transformer;
Journal_Title :
Science, Measurement and Technology, IEE Proceedings A
