Xavier Jannot, Jacques Saint-Michel, Leroy-Somer, Hiroyuki Sano, JSOL Corporation
The process of manufacturing magnetic material laminations dedicated to electromagnetic devices implies some degradation of the magnetic properties compared to unprocessed material. It is becoming more and more important to consider this effect to accurately design an electric motor, especially when efficiency or temperature rise are design constraints. This paper describes a complete workflow, from the material data analyses obtained on samples to the numerical simulation. It goes through a brief description of the model used to simulate the cutting effect and presents a method to identify the model parameters. The methodology is applied to the case of a permanent magnet assisted synchronous reluctance motor with two different stator configurations, to evaluate the impact of manufacturing the magnetic steel laminations on the motor performances.