Cogging torque; IPM type BLDC motor; taguchi method
Issue Date
2009-09
Publisher
ISEM 2009
Citation
International Journal of Applied Electromagnetics & Mechanics, v. 33, no. 1-2, page. 649-654
Abstract
This paper introduces a rotor core in an interior permanent magnet type brushless DC motor. The rotor core consists of a rotor surface having a non-uniform air gap and a novel magnetic flux barrier. We show that, in the rotor core, the rotor surface having the non-uniform air gap effectively reduces the cogging torque while the optimized magnetic flux barrier reduces the cogging torque, and increases the average torque and the efficiency.