Performance Improvement Of Different Topologies Of Claw Pole Tfpm Based On A 3d Fea

The transverse flux permanent magnet machine (TFPM) is currently given an increasing attention, especially in electric and hybrid propulsion applications because of the highest output torque per unit volume ratio compared to the conventional electric machines. Although significant works have been carried out on the earlier topologies, much improvement of the TFPM performances is still required.Tow topologies of claw pole TFPM are considered. The first one is the surface mounted magnets claw pole. The second one is the buried mounted magnet claw pole topology with flux concentrated design. Let us consider the same motor sizing, pole pair number and the same used materials features, the present work deals with, in a first step, a structure and flux path comparison between the tow topologies, then in a second step, a 3D Finite Element Analysis (FEA) based investigation of the output torque and the cogging torque of the proposed claw pole TFPM topologies for Performance improvement by increasing the output torque, doing so the influence of the cogging torque is analyzed.