Measurement and Modelling of the Rotational Core Losses in an Induction Machine at Different Load Conditions

To study rotational core losses of induction machines, this paper presents a calculation method based on finite elements method (FEM). This method considers the effect of magnetic saturation and develops transient magnetic flux trajectories to calculate rotational core losses. Moreover, experimental core losses data of induction machine at different load conditions are also presented. The measurement and prediction have shown well agreement, which validates the proposed rotational core losses calculation method.