This paper explores the leakage inductance of a single-tooth wound synchronous reluctance motor and its influence on motor performance. It is shown that the stator leakage inductance heavily influences the true saliency ratio in synchronous reluctance motors and a large stator leakage inductance has a serious detrimental impact on the operating power factor. It is also shown through analytical and finite element analysis analysis that synchronous reluctance motors with single-tooth windings suffer an inherent high stator leakage inductance that is dominated the air-gap harmonic leakage component, derived from the significant stator MMF harmonics experienced with this winding type. This explains for the first time the experimental results showing a low operating power factor compared to a distributed wound machine. Measurement of the stator leakage inductance is attempted on a prototyped machine and the standardized method is found to be lacking when single-tooth windings are employed.

中文翻译：

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单齿绕线同步磁阻电机定子漏感增加的影响

本文探讨了单齿绕线同步磁阻电机的漏感及其对电机性能的影响。结果表明，定子漏电感严重影响同步磁阻电机的真实凸极比，大定子漏电感对运行功率因数有严重的不利影响。通过解析和有限元分析还表明，具有单齿绕组的同步磁阻电机具有固有的高定子漏电感，该漏电感主要是气隙谐波漏电感，源自这种绕组类型所经历的显着定子 MMF 谐波. 这首次解释了实验结果显示与分布式绕线机相比工作功率因数低的原因。