Design and magnetic noise reduction of the surface permanent magnet synchronous machine

Nowadays, the development of the electric motorization for the land vehicles is essential since the energetic challenge is become very critical. Electrical machines dedicated to this operating segment have some specifics of torque characteristics (high saturation level, important flux weakening) over the speed range. This paper presents the development of a tool used for the optimal acoustic and electromechanical modeling which stands out from standard analytical and Finite Element modeling respectively because of a high accuracy of calculations and a quickness of the resolution. Some results of comparison between acoustic measurement and simulation for different speed will be presented.