A novel axial field SRM with segmental rotor: Concept, design and analysis

A novel axial field switched reluctance motor (AFSRM) with single teeth stator and segmental rotor is introduced in this paper. The stator and rotor of the proposed motor are disk type: the stator poles are composed of excitation poles and auxiliary poles, the rotor is made up of a series of discrete segments. Because of the axial field structure and novel excitation source, the proposed motor can provide much higher output torque within reducing the copper volume. The basic operation concepts and design rules are introduced and in order to calculate the characteristics of the proposed structure detailed, the finite element model is established base on the software of Maxwell 12-3D, which is aimed at flux linkage, inductance, output torque, radial force and axial force. Compared with the conventional 12/8 SRM in the same parameters, the proposed motor can provide higher output torque and more efficient, which is much suitable for the low speed and high torque applications.