TUTORIAL 3: Magnetic Materials Modeling and Characterization for Electric Vehicles

  • Date: Tuesday, September 12
  • Time: 8:30-10.30
  • Location: Room 4


    The energy crisis and the environmental problems make the electric vehicles (EVs) the future trend of the transportation systems. Market penetration of the EVs has been increasing drastically in the recent years and so the interest about this technology is becoming very diffuse.
    Many research and industrial activities are focused on the efficiency and reliability improvement of these vehicles. One of them is about the energy conversion systems that involve static power converters and electrical motors. This tutorial is focused on the modeling and characterization of the magnetic materials used in the latter in order to stimulate research activities and dedicated studies about the optimized design of electrical motors.
    The electrical motors involved in the electrical vehicles are usually inverted-fed. The magnetic cores are usually laminated, in consideration of the frequency range of the current and voltage. The presence of wave-modulation devices, such as power static converters, makes critical the distribution of the amplitude spectrum vs frequency, and, in addition, the more modern static power switching devices operates at increasing work frequency and at high values of magnetic induction and specific power, in order to maximize the magnetic material usage. For the reasons above the magnetic losses in the magnetic core represent a considerable part of the total energy consumption. It is very important, therefore, to compute with high accuracy the magnetic losses in order to correctly design and optimize the electrical components with the high efficiency degree required, also in consideration of the expected increasing of the system endurance [1-5].
    The tutorial will be presented in three parts, an introduction about electrical machines and power converters used in the modern electric vehicles and hybrid vehicles, an overview about the magnetic materials involved in these applications and finally some case study about the evaluation of the power losses in the iron cores under different excitation waveforms.


    Antonio Faba, University of Perugia (Italy).


    Antonio Faba, is currently Assistant Professor of Electrical Engineering in the Department of Engineering of the University of Perugia where he is head of the Laboratory of Electromagnetic Characterization (http://laboratoriocem.tr.unipg.it/index_eng.htm). He is secretary of the Italian Chapter of the IEEE Magnetic Society and he was invited speaker and chair for several sessions in international conferences. He received degree in Electrical Engineering in 1998, Assistant Professor of Electrical Engineering in 2001, PHD in Industrial Engineering in 2006 and Associate Professor habilitation in Electrical Engineering in 2013. His research activities are focused on the modeling and experimental characterization of magnetic materials, non-destructive diagnostic systems and electromagnetic compatibility. Antonio Faba is author of 55 papers published on international journals with impact factor and two patents. He was scientific coordinator of 7 research projects in collaboration with public and private institutions.