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首页> 外文期刊>Electric Power Applications, IET >Modelling and experimental validation of internal short-circuit fault in salient-pole synchronous machines using numerical gap function including stator and rotor core saturation
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Modelling and experimental validation of internal short-circuit fault in salient-pole synchronous machines using numerical gap function including stator and rotor core saturation

机译:凸极同步电机内部短路故障的建模和实验验证,其数值间隙函数包括定子和转子铁心的饱和度

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摘要

In this study, the winding function method is modified and used to calculate the machine inductances in two different cases, namely, a healthy case and a short-circuited stator winding case. For the first time, a numerical air-gap function is used in addition to a model of the air gap of salient-pole machines which considers the stator slot effects. The modified winding function (MWF) method introduced here is more precise when compared with previous methods. This MWF enables one to compute the air-gap function more accurately. Also a mathematical model that allows taking stator and rotor core saturation into account in both healthy and faulty conditions is presented in this study. Stator and rotor winding currents in healthy and faulty condition, obtained from experimental results, are compared with simulation results to verify the accuracy of the proposed method.
机译:在这项研究中,修改了绕组函数方法,并用于计算两种情况下的电机电感,即正常情况和定子绕组短路情况。除考虑定子槽效应的凸极电机气隙模型外,首次使用数值气隙函数。与以前的方法相比,此处介绍的改进的绕线函数(MWF)方法更为精确。该MWF使人们能够更准确地计算气隙函数。这项研究还提出了一个数学模型,该模型允许在健康和故障情况下都考虑到定子和转子铁心的饱和度。将实验结果获得的定子和转子在健康和故障状态下的绕组电流与仿真结果进行比较,以验证该方法的准确性。

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