Mitigation of magnetic flux saturation in dual-excitation flux switching motor

Development of dual-excitation flux switching machines (DEFSMs) in which the combination of permanent magnet (PM) and DC field-excitation coil (FEC) as their main flux sources has been carried out over many years. This is due to their definite advantage of variable flux capabilities with high potential to gain much higher torque and power densities, as well as higher efficiency over conventional PM machines. In this paper magnetic flux saturation of 12S-10P DEFSM is analyzed and mitigation technique using deterministic optimization approach is proposed to increase the torque production.