Reduction of cogging torque of Servo motor with Rare earth Permanent Magnets & Its application

희토류 영구자석 서보모터의 코깅토오크 저감방법 및 시제품에의 적용

In a recent as the compact and the precision motor is needed, the use of rare earth permanent magnet with high energy product is frequent. Accordingly it is important to reduce the cogging torque for improving the control precision of motor. In order to develop the motor with low cogging torque which is contented with the requirement of customer, the prototype is designed and complete based on analysis method to reduce the cogging torque. The experimental results verify the validity.