A permanent magnet flux switching motor for low energy axial fans

In this paper, a permanent magnet flux switching motor (PMFSM) is presented as an alternative to the more familiar brushless DC motor (BDC) used in low energy consumption axial fans. The PMFSM has permanent magnets as a part of the stator structure which also contains an armature winding. The rotor is a simple steel, salient pole structure. Simulated and experimental results are shown that demonstrate the proposed PMFSM can have improved efficiency compared with a comparable BDC motor and drive.