Title :
Optimal core shape design for cogging torque reduction of brushless DC motor using genetic algorithm
Author :
Han, Ki-Jin ; Cho, Han-Sam ; Cho, Dong-Hyeok ; Jung, Hyun-Kyo
Author_Institution :
Sch. of Electr. Eng., Seoul Nat. Univ., South Korea
fDate :
7/1/2000 12:00:00 AM
Abstract :
The cogging torque in the small brushless DC (BLDC) motors used in the digital versatile disk (DVD) driving system or hard disk drive (HDD) system can cause some serious vibration problems. In this paper, some core shapes that reduce cogging torque are found by using the reluctance network method (RNM) for magnetic field analysis and genetic algorithms (GAs) for optimization. The outer rotor type BLDC motor for the DVD ROM driving system is optimized as a sample model
Keywords :
brushless DC motors; genetic algorithms; machine theory; magnetic cores; magnetic fields; rotors; torque; DVD driving system; brushless DC motor; cogging torque reduction; digital versatile disk; genetic algorithm; hard disk drive; magnetic field analysis; optimal core shape design; outer rotor type BLDC motor; reluctance network method; vibration problems; Brushless DC motors; Brushless motors; DC motors; DVD; Forging; Hard disks; Magnetic cores; Reluctance motors; Shape; Torque;
Journal_Title :
Magnetics, IEEE Transactions on
