코깅 토크와 리플 저감을 위한 800W급 소형 SPM 전동기 다중목적 최적설계

Abstract

SPM(Surface-mounted permanent magnet) motor is widely used for variety of fields, but it is necessary for reducing torque ripple and cogging torque which result in noise and vibration. Since the configuration of the motor has great impact on these responses, study related shape optimization is proceeding actively. However, these responses cannot design easily for general optimization technique because of trade off relation. So, this paper presents multi-objective optimization of stator and rotor in a SPM motor. Also kriging metamodel and global optimization technique is applied, because multi-objective function is nonlinearity and has multiple local optimums.