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http://dx.doi.org/10.5207/JIEIE.2012.26.3.080

Design of Magnetic Slot Wedge Shape for Reducing Cogging Torque in Permanent Magnet Synchronous Generator of Direct Drive Type  

Moon, Jae-Won (한국기계전기전자시험연구원)
Kim, Seung-Joo (한국기계전기전자시험연구원)
Choi, Han-Suk (한국기계전기전자시험연구원)
Park, Su-Kang (한국기계전기전자시험연구원)
Kim, Bong-Ju (한국델파이)
Kwon, Byung-Il (한양대학교 전자시스템공학과)
Publication Information
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers / v.26, no.3, 2012 , pp. 80-87 More about this Journal
Abstract
This paper suggests the slot wedge shape for reducing the cogging torque of a direct-drive permanent magnet synchronous generator for a bike. To consider easy coil winding, we applied a structure of open slot for the permanent magnet synchronous generator (PMSG). Because the cogging torque of PWSG with the open slot is very large, we are designed the appropriate specifications of the PMSG by selected the appropriate material of slot wedge and various slot wedge shapes. The prototype model is selected by design theory for reducing cogging torque and maximizing efficiency of PMSG. And the detailed structure design of the model was designed by the loading distribution method. The PMSG models were analyzed by finite element method. Finally, we have suggested appropriate material of slot wedges and its shape which has benefit to further reducing cogging torque and preventing decreasing of the generating power.
Keywords
Cogging Torque; Permanent Magnet Synchronous Generator; Slot Wedge; Design of Generator;
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  • Reference
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