Influence on brushless DC motor performance due to unsymmetric magnetization distribution in permanent magnet

Author

Park, Seung-Chan ; Yoon, Tae-Ho ; Kwon, Byung-Il ; Yoon, Hee-Soo ; Won, Sung-Hong

Author_Institution

Res. Inst. of Eng. & Technol., Hanyang Univ., Ansan, South Korea

Volume

36

Issue

4

fYear

2000

fDate

7/1/2000 12:00:00 AM

Firstpage

1898

Lastpage

1901

Abstract

The real brushless DC motor has different permanent magnet pole magnetization levels due to the influence of the magnetizer geometry. Therefore, this paper discusses the influence of change in the magnetic parameter on brushless DC motor performances. As a result, the unbalanced magnetic force acting on the rotor, cogging torque and torque ripple are examined for spindle motor with unsymmetric magnetization distribution

Keywords

brushless DC motors; finite element analysis; machine theory; magnetic forces; magnetisation; permanent magnets; rotors; torque; brushless DC motor performance; brushless DC motor performances; cogging torque; magnetizer geometry; permanent magnet; permanent magnet pole magnetization; rotor; spindle motor; torque ripple; unbalanced magnetic force; unsymmetric magnetization distribution; Brushless DC motors; DC motors; Finite element methods; Geometry; Magnetic analysis; Magnetic forces; Magnetization; Permanent magnet motors; Rotors; Torque;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.877817

Filename

877817