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Optimal Design for Starting -Torque of Line-Start Permanent Magnet Synchronous Motors  

Kim, Byong-Kuk (동아대학교 공대 대학원 전기공학과)
Moon, Ji-Woo (동아대 공대 일반대학원 전기공학과)
Kim, Mi-Jung (한국전기연구원 산업전기연구단)
Lee, Byung-Jun (한국전기연구원 전력설비진단연구그룹)
Cho, Yun-Hyun (동아대학교 공대 전기공학과)
Publication Information
The Transactions of The Korean Institute of Electrical Engineers / v.56, no.8, 2007 , pp. 1390-1396 More about this Journal
Abstract
The line-start permanent magnet synchronous motor has a high efficiency and an advantage in constant speed operation regardless of the effect of load variation. However, it is difficult to predict the performance of characteristics accurately, because of the unbalanced starting torque with the initial starting position of the rotor and the generation of a break torque. In this paper the dynamic characteristics of the line-start permanent magnet synchronous motor are described and compared with those of the squirrel-cage induction motor through the simulation to find the characteristics of the permanent magnets and the rotor bars in the line-start permanent magnet synchronous motor. Finally this paper gives the comparison between the simulation results and the experimental results.
Keywords
Optimal Design; Synchronous motor; Line-Start; High efficiency;
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  • Reference
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