Electromagnetic performance analysis of a new hybrid excited stator-partitioned flux switching permanent magnet machine

By incorporating the design concept of multiple excitations and stator-partitioned structure into the FSPM motor, a new hybrid excited stator-partitioned flux switching permanent magnet motor (HESP-FSPM) is proposed in this paper. On the one hand, by using hybrid permanent magnet (PM), the volume of rare-earth PMs in the proposed machine is reduced effectively with relatively high torque capability. On the other hand, the machine possesses a magnetic flux controllable capability due to the adoption of DC field windings. Finally, by using the finite element analysis (FEA) method, the electromagnetic performances are investigated in details, indicating that the proposed machines exhibit high power/torque density with less rare-earth PM and excellent flux-regulation capability.