극 슬롯 조합에 따른 버니어 영구자석 전동기 손실 특성 분석

초록

Vernier Permanent-Magnet Synchronous Motor(VPMSM) is a motor that improves the back EMF and torque of the motor by using the spatial harmonic component of the air-gap magnetic flux density. In addition to the fundamental component, harmonics also contribute to the VPMSM performance, so they have high torque performance, and for this reason, many studies on VPMSM are being conducted. However, since it is affected by spatial harmonics, the motor must be designed so that the spatial harmonics increase, so VPMSM has different loss characteristics from conventional motors. In this paper, the loss characteristics of VPMSM were analyzed and compared with the loss characteristics of conventional motors. In addition, the loss characteristics change according to the combination of the number of poles and slots of VPMSM were explained. To this end, the loss characteristics of several VPMSMs and conventional motor designed under the same conditions were analyzed through the finite element method(FEM), and the design guidelines of the VPMSM were presented through the results.

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