Effect of magnet materials on optimal design of a high speed PMSM

In this paper, we investigate the effect of magnet materials on optimal design of a high speed synchronous machine for different rotor speeds. High speed electrical machine tends to lower the magnetic flux density in order to decrease the iron losses. Thus, ferrite magnets should lead to similar performances as rare earth magnets in the optimal design of surface mounted permanent magnet synchronous machines. With this regard, we suggest to analyze the effect of those both magnet materials on the optimal design of these PMSM for different rotor speeds.