Three-dimensional finite-element-model investigation of axial-flux PM BLDC machines with similar pole and slot combination for electric vehicles

Author

Shiadeh, SeyyedMahdi Jafari ; Ardebili, Mohammad ; Moamaei, Parvin

Author_Institution

Comput. & Electr. Eng. Dept., K.N. Toosi Univ. of Technol., Tehran, Iran

fYear

2015

fDate

20-21 Feb. 2015

Firstpage

1

Lastpage

4

Abstract

Axial-flux permanent-magnet brushless-dc (AFPM BLDC) machines with concentrated windings are very attractive choices for direct-drive applications due to their high torque-density, high efficiency, and extreme compact construction. Particularly they are suitable to be used in in-wheel electric vehicles. For this purpose two different AFPM BLDC machine topologies with similar pole and slot combination are designed, and cogging torque, winding inductance, output torque, and unbalanced torque exerted on bearing are obtained for the two 3.4 kW motors. High precision three-dimensional (3-D) finite-element analysis is used to achieve the performance of two motor topologies accurately.

Keywords

brushless DC motors; electric vehicles; finite element analysis; machine bearings; machine windings; permanent magnet machines; torque; axial-flux PM BLDC machines; axial-flux permanent-magnet brushless-DC machines; bearing; cogging torque; electric vehicles; output torque; power 3.4 kW; three-dimensional finite-element-model investigation; unbalanced torque; winding inductance; windings; Finite element analysis; Forging; Magnetic flux; Stators; Topology; Torque; Windings; 3-D finite element; axial flux permanent magnet; brushless dc; cogging torque; concentrated winding; unbalanced torque;

fLanguage

English

Publisher

ieee

Conference_Titel

Power and Energy Conference at Illinois (PECI), 2015 IEEE

Conference_Location

Champaign, IL

Type

conf

DOI

10.1109/PECI.2015.7064936

Filename

7064936