Influence of Magnetic Materials on Claw Pole Machines Behavior

This paper presents a study on magnetic materials for claw pole machines which are widely used nowadays in the automobile industry for their simple manufacturing and cost reasons. The finite element analysis with the loss surface model is used to evaluate the iron losses for three categories of material: M800-50A, M330-35A, and AFK502. Comparisons are made in terms of output current, efficiency, as well as iron loss as main characteristics of the machine. On the other hand, the experimental method of loss separation provides a clear idea of the loss distribution in the machines, from which the iron loss can be deduced. A qualitative comparison is made between the two methods, which proves to be coherent.