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(Nantong University) (Nantong University) (Nantong University) (Nantong University) (Nantong University) (Nantong University)
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한국자기학회 Journal of Magnetics Journal of Magnetics Vol.30 No.3
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    초록·키워드

    This paper proposes a novel rectangular modulated tooth arrangement suitable for Permanent-Magnet Vernier (PMV) motors. The proposed special arrangement of modulated teeth can significantly reduce the machine cogging torque while maintaining torque density without added complexity. Firstly, a theoretical model of cogging torque generation in unevenly spaced split-tooth (USST) PMV motors is derived, and a mathematical relationship between the modulated tooth structure and cogging torque is established. Then, a 20-slot, 62-pole PMV motor is optimized and compared to a traditional modulated tooth arrangement. Finally, a finite-element model is used to analyze the torque, cogging torque, and losses. The results demonstrate the effectiveness of the new arrangement in reducing cogging torque.

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