Title :
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
fDate :
7/1/2000 12:00:00 AM
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;
Journal_Title :
Magnetics, IEEE Transactions on
