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Extended Space Vector Method for Calculation of Induction Motor Parameters

机译：扩展空间矢量法计算异步电动机参数

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In this article, a novel method for the determination of spatial vectors of multi-phase windings is proposed. The proposed method is applied to squirrel-cage induction motors and it allows for the calculation of the rotor currents space vectors with any slot number (even and odd), that cannot be determined by classical expressions. On the basis of current space vectors and current flux linkages, the proposed method determines the flux linkage phasors. The current and flux linkage phasors of the stator and rotor make it possible to determine the leakage and magnetizing inductances of the rotor and stator for any operating point on the basis of finite-element analysis of the motor model without any further calculations. The new method, besides the motor parameters, allows determination of the motor torque components developed by higher harmonic components of current, which significantly affects the resultant motor torque. The validity of the proposed method is verified by comparison of motor parameters determined from finite-element analysis with the parameters determined by running no-load and locked rotor tests on an actual motor.
机译：本文提出了一种确定多相绕组空间矢量的新方法。所提出的方法被应用于鼠笼式感应电动机，并且它允许计算具有任何槽数（偶数和奇数）的转子电流空间矢量，而这是经典表达式无法确定的。该方法基于电流空间矢量和电流磁链，确定了磁链相量。定子和转子的电流和磁通矢量相量使得可以在不进行任何进一步计算的情况下，基于电动机模型的有限元分析，确定任何工作点的转子和定子的漏感和磁化电感。除电动机参数外，新方法还可以确定由电流的高次谐波分量产生的电动机转矩分量，这会严重影响合成电动机转矩。通过比较从有限元分析确定的电动机参数与通过在实际电动机上进行空载和转子堵转测试而确定的参数，验证了该方法的有效性。

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