Novel Modular Rotor Single Phase Wound Field Flux Switching Machine

In recent years, numerous topologies of single phase and three phase Field Excited Flux-Switching Machine (FEFSM) have been developed for several application such as flux weakening capability and high speed because of robust structure of rotor. However, conventional 8S-4P sub-part rotor design has higher iron losses in stator and rotor core. Overlapped winding configuration between Field Excitation coil (FEC) and Armature coil of conventional design has a problem of high copper consumption. This paper presents novel topology of single phase modular rotor field excited FSM with 8s-6p configuration, which enable non-overlap arrangement between armature coil and FEC winding that facilitates devaluation in the copper losses. The proposed rotor design acquires reduced iron losses comparatively to conventional design. The electromagnetic performance of conventional sub-part rotor design and proposed novel-modular rotor design is analyzed by 3D-Finite Element Analysis (3D-FEA), includes flux linkage, flux strength, back-EMF, cogging torque, torque characteristics and iron losses.