Predetermination of the electromagnetic losses in high speed electrical machines: application to switch reluctance motor

Several methods for predicting electromagnetic losses have been proposed and tested by different teams. This predetermination is particularly important for the machines with a high rotating speed because under certain conditions the electromagnetic losses can be relatively important and thus constitute a non-negligible design factor. In this paper a method for predicting electromagnetic losses, is proposed which associates simulation results with experimental loss measurements on the sample of iron sheets under various flux density waveforms. First of all, the authors present a synthesis of the state of the art based on different methods for predicting these losses