This study built a full frequency instant core-loss model from the induction physical equation of magnetic materials,where the iron loss,eddy loss,and hysteresis loss in the new core loss equation no longer have an integral term.This new model provides high simulation accuracy and performs dynamic core loss analysis on non-sinusoidal or pulse magnetic fields.The simulation examples use two types of high-grade electromagnetic sheet steels,25CS300 and 35CS300 by Epstein experimental data,the magnetic field covers 0.1 to 1.8 T,the frequency covers 50 to 5000 Hz,and the average error of the simulated core loss is less than 5.6%.Since the two electromagnetic steels have the same material composition,the physical relevance of the model equations can be compared with the coefficient results.
NETL
NSTL
万方数据
