Improvement and validation of an iron loss model for synchronous machine

This paper presents the improvement of an iron loss model. This model meets the requirements of iron loss modeling in electrical machine by rebuilding the hysteresis cycle. Various magnetic flux density waveforms have been measured on Epstein frame to validate the model. The model shows good accuracy with measurements. It is then applied to an electrical machine after finite element method (FEM) calculation on various working points. The result shows the influent factors over the iron losses.