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首页> 外文期刊>Electric Power Components and Systems >Slot Numbering and Distributed Winding Effects Analysis on the Torque/Current Spectrum of Three-phase Wound-rotor Induction Machine Using Discrete Modeling Method
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Slot Numbering and Distributed Winding Effects Analysis on the Torque/Current Spectrum of Three-phase Wound-rotor Induction Machine Using Discrete Modeling Method

机译：离散绕线法对三相绕线转子感应电动机转矩/电流谱的槽号和分布绕组效应分析

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摘要

Smooth torque production by induction machines is an improbable phenomena that is taken into account only in classic and ideal studying methods. In this research, slot numbering and also non-sinusoidal winding function effects are studied for a three-phase wound-rotor induction machine, which is addressed for the first time, and a new formula is introduced for calculating the spectral components of machine torque and current. To reach this aim, mathematical modeling of the air-gap function is proposed, and a discrete time modeling of the machine is introduced to study the effects of space harmonics on the torque/current spectral. To study the mentioned phenomena, in the first part, the winding functions are considered as ideally sinusoidal and the behavior of simulated machines is investigated based on the winding function approach and numerical method analysis. Two certain formulas are introduced for the spectral components of torque ripple and stator currents according to the slot numbers, rotor speed, and number of machine poles. In the second part, slot opening effects are neglected and non-sinusoidal windings are considered for obtaining the same results. Finally, considering both effects, model validation is confirmed by a finite-element-based method, and the introduced method is proven.
机译：感应电机产生平稳的扭矩是不可能的现象，只有经典和理想的研究方法才考虑到这种现象。在这项研究中，研究了三相绕线转子感应电机的槽号和非正弦绕组功能效应，这是首次提出，并引入了一个新公式来计算电机转矩和转矩的频谱分量。当前。为了达到这个目的，提出了气隙函数的数学模型，并引入了机器的离散时间模型来研究空间谐波对转矩/电流谱的影响。为了研究上述现象，在第一部分中，绕组函数被认为是理想的正弦曲线，并基于绕组函数方法和数值方法分析研究了仿真机器的行为。根据槽数，转子速度和极数，针对转矩脉动和定子电流的频谱分量引入了两个特定公式。在第二部分中，忽略了开槽效应，并考虑了非正弦绕组以获得相同的结果。最后，综合考虑这两种影响，通过基于有限元的方法对模型进行了验证，并证明了所引入的方法。

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