Magnetic Field Analysis of a Brushless DC Motor Comparing Ferrite and NdFeB Magnets on Rotor

Author

Juliani, Aline D P ; Gonzaga, Diógenes P. ; Monteiro, José Roberto B A ; Aguiar, Manoel L. ; Oliveira, Azauri A., Jr.

Author_Institution

Univ. of Sao Paulo, Sao Carlos

fYear

2007

fDate

23-25 May 2007

Firstpage

260

Lastpage

264

Abstract

This paper presents comparisons between three-phase permanent-magnet motor with ferrite magnets on rotor and other with NdFeB (bonded). Related to this replacement, the advantages and disadvantages are quoted. The analysis of magnetic field is made through the finite element method. The used machine has nonsinusoidal flux. Its application main is in hermetic compressor household refrigeration systems. Also, the geometric and magnetic characteristics are presented.

Keywords

boron alloys; brushless DC motors; ferrites; finite element analysis; iron alloys; magnetic fields; magnetic flux; neodymium alloys; permanent magnet motors; rotors; NdFeB; NdFeB magnets; brushless DC motor; ferrite magnets; finite element method; geometric characteristics; hermetic compressor household refrigeration systems; magnetic characteristics; magnetic field analysis; nonsinusoidal flux; rotor; three-phase permanent-magnet motor; Bonding; Brushless DC motors; Ferrites; Finite element methods; Magnetic analysis; Magnetic fields; Magnetic flux; Permanent magnet motors; Refrigeration; Rotors; Electrical machines; brushless DC motor; finite element analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Industrial Electronics and Applications, 2007. ICIEA 2007. 2nd IEEE Conference on

Conference_Location

Harbin

Print_ISBN

978-1-4244-0737-8

Electronic_ISBN

978-1-4244-0737-8

Type

conf

DOI

10.1109/ICIEA.2007.4318411

Filename

4318411