闭槽转子潜水电机轴承故障数值模型

Q1 Engineering
Zhe Ke;Bokai Guan;Chong Di;Jingwen Yan;Xiaohua Bao
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引用次数: 0

摘要

采用有限元方法建立了闭槽转子电机轴承故障的数值模型。转子的径向运动在缺陷时间点可以看作是静态偏心,在其他时间点可以看成是健康的。根据电机轴的径向运动,分析了定子电流中与轴承故障相对应的谐波分量的频率。此外,建立了相对磁导率变化区,以实现轴承故障转子的径向运动。首先,在健康和静态偏心模型中建立了相对渗透率变化区域。然后,对缺陷时间点进行了估计,并利用瞬态场对静态偏心模型进行了分析。最后,将静态偏心模型中可变区域在缺陷时间点的相对渗透率导入健康模型的可变区域。仿真结果表明,轴承故障模型的气隙磁通密度不同于健康模型和静态偏心模型。此外,定子电流中还含有轴承故障的谐波分量。分析结果证明了该模型的适用性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Bearing Fault Numerical Model for the Closed-slot Rotor Submersible Motor
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来源期刊
Chinese Journal of Electrical Engineering
Chinese Journal of Electrical Engineering Energy-Energy Engineering and Power Technology
CiteScore
7.80
自引率
0.00%
发文量
621
审稿时长
12 weeks
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