The Effect of Magnets Magnetization Direction on Brushless DC Motors by Finite Element Method

Author

Cunshan, Zhang

Author_Institution

Sch. of Electr. & Electron. Eng., Shandong Univ. of Technol., Zibo, China

fYear

2010

fDate

25-27 June 2010

Firstpage

5719

Lastpage

5721

Abstract

The magnetic fields of permanent magnet brushless DC motors surface-mounted with parallel magnetization magnets and radial magnetization magnets were computed with finite element method. The finite element computation results show that the air-gap flux density of brushless DC motor with radial magnetization magnets is increased by 25% than that of brushless DC motor with parallel magnetization magnets. For surface-mounted permanent magnet brushless DC motors mounted with radial magnetization magnets, the torque will be increased, the material costs will be decreased and torque ripple will be improved.

Keywords

brushless DC motors; finite element analysis; torque; air-gap flux density; finite element computation; finite element method; magnetic fields; magnets magnetization direction effect; parallel magnetization magnets; permanent magnet brushless DC motors; radial magnetization magnets; torque ripple; Air gaps; Brushless DC motors; Finite element methods; Magnetic flux; Magnetization; Permanent magnet motors; Permanent magnets; Magnets Magnetization Direction; air-gap flux density; brushless DC motor;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical and Control Engineering (ICECE), 2010 International Conference on

Conference_Location

Wuhan

Print_ISBN

978-1-4244-6880-5

Type

conf

DOI

10.1109/iCECE.2010.1389

Filename

5631863