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首页> 外文期刊>Industrial Electronics, IEEE Transactions on >Analytical Calculation of the Slot Leakage Inductance in Fractional-Slot Concentrated-Winding Machines
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Analytical Calculation of the Slot Leakage Inductance in Fractional-Slot Concentrated-Winding Machines

机译：分数槽集中绕线机的槽漏电感的解析计算

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摘要

This paper obtains analytical expressions for the calculation of the slot leakage inductance for fractional-slot concentrated-winding (FCSW) machines with one-, two-, or four-layer windings. The formulas are derived from solving the 2-D Poisson problem associated with the slot region, making them more accurate than classically used expressions that assume a leakage flux path parallel to the placement of the conductors in the slot. Explicit formulas are given in the case of one- and two-layer FSCWs with a number of phases ranging from 3 to 7. The obtained analytical expressions are validated by a finite-element analysis, showing excellent agreement between both calculation methods, even for large slot-opening-to-slot-pitch ratios. A brief comment with regard to the fault-tolerant capability of permanent-magnet FSCW machines with respect to the number of layers is also given.
机译：本文获得解析表达式，用于计算具有一层，两层或四层绕组的分数槽集中绕组（FCSW）电机的槽漏电感。该公式是通过求解与缝隙区域相关的二维泊松问题而得出的，与传统使用的假定漏磁通路径平行于缝隙中导体位置的表达式相比，这些公式更加精确。对于一相和两相FSCW，其相数范围从3到7，给出了明确的公式。通过有限元分析验证了所获得的解析表达式，即使对于大体积的FSCW，这两种计算方法也具有极好的一致性。开槽与节距的比率。还简要介绍了永磁FSCW机器的容错能力（相对于层数）。

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