Comparative study of the parallel hybrid excited flux-switching machine topology for aerospace generator system

Parallel hybrid excited flux-switching machine combines the advantages of permanent magnet flux-switching machine and electrical excitation flux-switching machine with the controllability of magnetic flux by auxiliary field windings and high torque density. However, influenced by the armature winding inductance of electrical excitation part, output characteristic of the parallel hybrid excited machine is greatly reduced. Hence, another winding form is adopted for electrical excitation flux-switching machine in this paper. It can greatly reduce the armature winding inductance with the magnetic regulation ability unchanged and the comparison is given in details. Moreover, this paper comparatively studies on the electromagnetic performance of four topologies of parallel hybrid excited flux-switching machine and provides reference for the selection of parallel hybrid excited flux-switching topologies.