The effect of strong parasitic synchronous and asynchronous torques in induction machine with rotor eccentricity

2000 10th Mediterranean Electrotechnical Conference. Information Technology and Electrotechnology for the Mediterranean Countries. Proceedings. MeleCon 2000 (Cat. No.00CH37099) Pub Date : 2000-05-29 DOI:10.1109/MELCON.2000.879697

L. Gołębiowski, D. Mazur

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引用次数: 5

Abstract

Parasitic torque harmonics and stator current harmonics to rotational speed of the asynchronous motor are presented in this paper. To calculate these relationships a 2.5D finite element model has been used. The rotor bar skew has been simulated with the division of the electric machine into so called elementary machines having straight, but shifted against each other, rotor bars. The obtained results on both 2D and 3D graphs are presented to the rotational speed of the electric motor. Parameters for each particular harmonics have been found with these graphs. These graphs help to identify the origins of these harmonics as the co-action of the MMF of the stator current and the magnetic induction from the rotor in the airgap. Particular attention has been payed to how iron saturation influences these harmonics. The harmonics under study (in quantity of 18) has been taken under consideration, because they exhibited their presence in the above mentioned graphs as the functions of speed. Their origin has been also indicated on the graphs made as an extension of the Kluszczynski analytic/graphic diagrams.

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转子偏心对异步电机同步和异步强寄生转矩的影响

给出了异步电动机的寄生转矩谐波和定子电流谐波与转速的关系。为了计算这些关系，使用了2.5维有限元模型。通过将电机划分为具有直转子杆但相互移位的所谓基本电机，模拟了转子杆的偏斜。在二维和三维图形上给出了电机转速的结果。在这些图中找到了每个特定谐波的参数。这些图表有助于确定这些谐波的起源，作为定子电流的MMF和转子在气隙中的磁感应的共同作用。特别注意的是铁饱和度如何影响这些谐波。所研究的谐波(数量为18个)已被考虑在内，因为它们在上述图形中显示为速度的函数。它们的起源也在作为Kluszczynski分析/图形图的扩展而制作的图上表明。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

2000 10th Mediterranean Electrotechnical Conference. Information Technology and Electrotechnology for the Mediterranean Countries. Proceedings. MeleCon 2000 (Cat. No.00CH37099)

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