Research and calculation of permanent magnetic synchronous machine´s core loss

This paper researches the calculation of coreloss of stator, and use an equivalent substitution method to represent the hysterisis loss. To figure out the hysterisis loss and eddy current loss, both differential equations are derivated. And with the equations, FEA method and numerical computation are adopted to calculate the coreloss, respectively. FEA method could generate the flux density of the machine, then numerical computation could figure out the coreloss with the flux density. The results of FEA method, numerical computation and experiment meet well.