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A Study on the Cogging Torque Reduction in a Novel Axial Flux Permanent Magnet BLDC Motor  

Jo, Won-Young (동아대학교 전기공학과)
Lee, In-Jae (동아대학교 전기공학과)
Koo, Dae-Hyun (한국전기연구원 Mechatronics group)
Chun, Yon-Do (한국전기연구원 Mechatronics group)
Cho, Yun-Hyun (동아대학교 전기공학과)
Publication Information
The Transactions of the Korean Institute of Electrical Engineers B / v.55, no.9, 2006 , pp. 437-442 More about this Journal
Abstract
Cogging torque, the primary ripple component in the torque generated by permanent magnet (PM) motors, is due to the slotting on the stator or rotor. This article shows the reduction of cogging torque in a novel axial flux permanent magnet (AFPM) motor through the various design schemes. 3D finite element method is used for the exact magnetic field analysis. The effects of slot shapes and skewing of slot on the cogging torque and the average torque have been investigated in detail.
Keywords
Axial Flux PM BLDC Motor; Cogging Torque; Average Torque; Torque Ripple;
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  • Reference
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