Power Losses in Ferromagnetic Steel Sheets for Avionic Environment

Abstract

The estimation of the magnetic losses for laminations of Fe-Si steel at the typical excitation conditions expected in avionic environment is made. The traditional Steinmetz approach has been successfully identified from a set of experimental measurements of scalar magnetization processes at relatively low operating frequencies. The model is, successively, tested to reproduce the power losses at higher frequencies and for different levels of the magnetic induction. Comparative analysis with measured data is made. Conclusive remarks concerning the power losses prediction in case of non-sinusoidal magnetic induction waveforms are discussed.