Title :
The Effect of Magnets Magnetization Direction on Brushless DC Motors by Finite Element Method
Author_Institution :
Sch. of Electr. & Electron. Eng., Shandong Univ. of Technol., Zibo, China
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;
Conference_Titel :
Electrical and Control Engineering (ICECE), 2010 International Conference on
Conference_Location :
Wuhan
Print_ISBN :
978-1-4244-6880-5
DOI :
10.1109/iCECE.2010.1389
