Challenges in High and Low Field AC Magnetic Measurements for Material Modelling and Electrical Machine Performance Prediction

This paper is limited to discussion of only a few of these aspects. It focuses on measurements on electrical steels and modelling or predicting their performance but the same issues arise in measurements on other materials for power applications such as cobalt iron alloys and soft magnetic composite cores (SMCs). For brevity, only two magnetic properties are considered, namely power loss and permeability in their basic form, not going into the analysis of losses into frequency dependent and independent components or considering the various permeability parameters