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자기력을 고려한 매입형 영구자석 모터의 토크 리플 저감 자속 장벽 최적설계
박승균(Seunggyun Park),민승재(Seungjae Min),홍정표(Jungpyo Hong) 대한기계학회 2010 대한기계학회 춘추학술대회 Vol.2010 No.11
Interior Permanent Magnet(IPM) motor has relatively high torque ripple generated by reluctance torque. Because the torque pulsation has a bad effect on the noise and vibration of motor, efforts to reduce torque ripple have been studied by changing the motor configurations. In this paper, harmonic analysis of the tangential magnetic force waveform for the stator teeth is performed to identify harmonics that influence the torque ripple and the target force wave is generated by eliminating the identified harmonics. The optimization problem is formulated to fit the tangential magnetic force wave to the target force wave. Preliminary results show that low torque ripple of IPM motor is achieved using level set method.