Comparison of Rotor Structures of PMASynRMs with Tooth-coil Winding

In response to the rising price of permanent magnets and the shortage of rare earth resources, this paper designs a permanent magnet assisted synchronous reluctance motor. In consideration of the copper consumption and material utilization of the armature winding, a fractional slot concentrated winding is selected as the armature winding. After the same constraints on stator structure, armature current, permanent magnet quantities, and rotor silicon lamination stress, six different rotor topologies are compared using the finite element method. The results show that the V1-type rotor structure has outstanding performance.