Analytical study of pulsating torque and harmonic components in rotor current of six-phase induction motor under healthy and faulty conditions

2013 9th IEEE International Symposium on Diagnostics for Electric Machines, Power Electronics and Drives (SDEMPED) Pub Date : 2013-10-24 DOI:10.1109/DEMPED.2013.6645731

Y. Maouche, Abdelfettah Boussaid, M. Boucherma, A. Khezzar

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引用次数: 9

Abstract

In literature, open phase faults in multi-phase induction motor have been investigated. However rotor faults and their impact on the performance of multi-phase induction motor aren't widely discussed. An analytical study of the pulsating torque and harmonic components in rotor current of six-phase induction machine as a function of displacement between sub-windings in healthy and faulty cases (the rotor broken bar) is developed. The novel formula of pulsation torques of six-phase induction motor presented in this paper can be used as a fault indicator for broken rotor bars. The used model is based on multiple coupled circuits and takes into account the geometry and winding layout, including the calculation of pulsating torques. The simulation results show the disappearance of some higher rotor slot harmonics in torque spectrums as well as a significant improvement in the rotor current harmonics for a specific displacement between sub-windings.

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正常和故障状态下六相异步电动机转子电流脉动转矩及谐波分量的分析研究

已有文献对多相异步电动机的断相故障进行了研究。然而，转子故障及其对多相感应电动机性能的影响并没有得到广泛的讨论。分析研究了六相感应电机在正常和故障情况下(转子断条)，转子电流中的脉动转矩和谐波分量随子绕组间位移的变化规律。本文提出的新型六相异步电动机脉动转矩公式可作为转子断条的故障指示器。所使用的模型基于多个耦合电路，考虑了几何形状和绕组布局，包括脉动力矩的计算。仿真结果表明，转矩谱中一些较高的转子槽次谐波消失，子绕组之间特定位移的转子电流谐波有明显改善。

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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2013 9th IEEE International Symposium on Diagnostics for Electric Machines, Power Electronics and Drives (SDEMPED)

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