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Eddy-current loss analysis in PM of surface-mounted-PM SM for electric vehicles

机译:电动汽车用表面贴装式永磁同步电动机永磁电机的涡流损耗分析

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摘要

Recently the rare-earth magnet NdFeB has been applied to electric vehicles. The rise of temperature due to eddy current loss in the permanent magnet (PM) leads to serious deterioration of the PM, especially in high speed operation. This paper describes an original analysis of the eddy current loss in the PM of a surface-mounted-PM SM for electric vehicles. The finite element analysis makes clear the effect of eddy current loss in the PM of the PM synchronous motor (SM) in the high speed range of operation including field weakening.
机译:近来,稀土磁体NdFeB已被应用于电动车辆。由于永磁体(PM)中涡流损耗而引起的温度升高会导致PM严重劣化,尤其是在高速运行中。本文介绍了一种用于电动汽车的表面安装式PM SM的PM中涡流损耗的原始分析。有限元分析清楚地表明了在包括磁场削弱在内的高速运行范围内,永磁同步电动机(SM)的PM中涡流损耗的影响。

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