A study about optimum stator pole design of Axial-gap switched reluctance motor

Author

Murakami, Shinsuke ; Goto, Hiromi ; Ichinokura, Osamu

Author_Institution

Grad. Sch. of Eng., Tohoku Univ., Sendai, Japan

fYear

2014

fDate

2-5 Sept. 2014

Firstpage

975

Lastpage

980

Abstract

Switched Reluctance (SR) motor attracts attention as motor that use no rare earth materials. And it is a candidate technology for electric vehicle application. In addition, Axial-gap structure has possibility of effective utilization of In-Wheel flat motor space. However, it is not established how to decide optimum design of Axial-gap SR motor. This paper mainly discusses the optimum design to maximize the torque-volume density of Axial-gap SR motor focused on the stator pole length. First, optimum stator pole length for increase torque-volume density is examined using FEA. The magnetomotive force is increasing when stator pole length is increasing, but motor total volume is also increasing. So, the optimum stator pole length regarding to the diameter for maximum torque-volume density is found. After that, a new Axial-gap SR motor is designed. Finally, the designed Axial-gap SR motor has high torque density as 51N·m/l.

Keywords

electric vehicles; finite element analysis; reluctance motors; stators; wheels; FEA; axial-gap SR motor optimum design; axial-gap structure; axial-gap switched reluctance motor; electric vehicle; high torque density; in-wheel flat motor space; magnetomotive force; maximum torque-volume density; motor total volume; optimum stator pole design; optimum stator pole length; Load modeling; Permanent magnet motors; Reluctance motors; Stator windings; Torque; Windings; Switched reluctance motor; axial gap motor; electric vehicle; stator pole length; torque density;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Machines (ICEM), 2014 International Conference on

Conference_Location

Berlin

Type

conf

DOI

10.1109/ICELMACH.2014.6960299

Filename

6960299