Integrated diagnosis techniques of high voltage induction machine with rotor winding faults

Hongzhong Ma, P. Ju, Dong-Heng Wang, Chunnin Wang, Zheng Li
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引用次数: 1

Abstract

This paper analyzes the novel techniques adopted to diagnose machine rotor winding fault. In order to accurately extract the fault characteristic in stator-steady current, frequency subdivision is used to enhance the frequency resolution of the signal and self-adapting filtering is used to enhance the magnitude resolution of the signal. Particular frequency component in the starting current is used for fault diagnosis, this greatly simplify the fault diagnosing technique based on starting current and make it applicable. Residual voltage after AC dump of the stator winding is used for fault diagnosis, this can effectively eliminate the effects caused by unsymmetrical source, load fluctuation, and iron saturation. The application of all these techniques can effectively diagnose the incipient faults of high voltage induction machine. Finally this paper introduces the basic structure and the main performance of the realized high voltage machine fault diagnosis system
高压感应电机转子绕组故障综合诊断技术
本文分析了用于电机转子绕组故障诊断的新技术。为了准确提取定子稳态电流下的故障特征,采用频率细分提高信号的频率分辨率,采用自适应滤波提高信号的幅值分辨率。利用起动电流中的特定频率分量进行故障诊断,大大简化了基于起动电流的故障诊断技术,使其具有适用性。采用定子绕组交流自卸后的残余电压进行故障诊断,可有效消除电源不对称、负载波动、铁饱和等因素的影响。这些技术的应用可以有效地诊断高压感应电机的早期故障。最后介绍了所实现的高压机械故障诊断系统的基本结构和主要性能
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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