DocumentCode
2852705
Title
Core shape optimization for cogging torque reduction of BLDC motor
Author
Han, Ki-Jin ; Cho, Han-Sam ; Cho, Dong-Hyeok ; Cho, Hyun-Rae ; Lee, Hae-Seok ; Jung, Hyun-Kyo
Author_Institution
Sch. of Electr. Eng., Seoul Nat. Univ., South Korea
fYear
1999
fDate
36281
Firstpage
416
Lastpage
418
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 a reluctance network method (RNM) for magnetic field analysis and a genetic algorithm (GA) for optimization. The outer rotor type BLDC motor for the DVD ROM driving system has been optimized as an sample model
Keywords
brushless DC motors; disc drives; genetic algorithms; machine theory; magnetic cores; magnetic fields; small electric machines; torque; cogging torque reduction; core shape optimization; core shapes; digital versatile disk; genetic algorithm; hard disk drive; magnetic field analysis; optimization; reluctance network method; small brushless DC motor; vibration problems; Brushless DC motors; Brushless motors; DC motors; DVD; Forging; Hard disks; Magnetic cores; Reluctance motors; Shape; Torque;
fLanguage
English
Publisher
ieee
Conference_Titel
Electric Machines and Drives, 1999. International Conference IEMD '99
Conference_Location
Seattle, WA
Print_ISBN
0-7803-5293-9
Type
conf
DOI
10.1109/IEMDC.1999.769132
Filename
769132
Link To Document