6槽/2极环形绕组高速永磁电动机最佳分流比的研究

F. Xu;T. R. He;Z. Q. Zhu;H. Bin;D. Wu;L. M. Gong;J. T. Chen
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引用次数: 0

摘要

分流比,即定子内径与外径之比,与永磁电机的电磁性能密切相关。本文将短端绕组轴向长度的环形绕组用于高速应用的6槽/2极(6s/2p)永磁电机。在考虑定子总损耗(定子铁损和铜损)的情况下,分流比与内槽面积与外槽面积之比(即槽比)一起进行优化。此外,还研究了定子最大磁通密度和齿尖对最佳分割比、槽比和平均转矩的影响。分析预测表明,当槽比为0.5时,可以获得最大扭矩,并且最佳分流比随着槽比的减小而增加,有限元分析证实了这一点。最后,通过对槽比为0.5的6s/2p样机的测试结果验证了部分预测结果。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Investigation of Optimal Split Ratio of 6-Slot/2-pole High Speed Permanent Magnet Motor with Toroidal Winding
Split ratio, i.e. the ratio of stator inner diameter to outer diameter, has a closed relationship with electromagnetic performance of permanent magnet (PM) motors. In this paper, the toroidal windings with short end-winding axial length are employed in the 6-slot/2-pole (6s/2p) PM motor for high speed applications. The split ratio is optimized together with the ratio of inner slot to outer slot area, i.e. slot ratio, considering stator total loss (stator iron loss and copper loss). In addition, the influence of maximum stator iron flux density and tooth-tip on the optimal split ratio, slot ratio, and average torque is investigated. The analytical predictions show that when the slot ratio is 0.5, the maximum torque can be achieved, and the optimal split ratio increases with the decrease of slot ratio, as confirmed by the finite element (FE) analyses. Finally, some of predicted results are verified by the measured results of 6s/2p prototype motor with 0.5 slot ratio.
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