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An Effective Induction Motor Fault Diagnosis Approach Using Graph-Based Semi-Supervised Learning

机译:基于图的半监督学习的一种有效的感应电机故障诊断方法

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摘要

Machine learning has paved its way into induction motors fault diagnosis area, where supervised learning and deep learning have been employed. However, both learning methods require a large amount of labeled data to train the model, which pose significant challenges in real life applications. To overcome this issue, in this paper, the graph-based semi-supervised learning (GSSL) is adopted to develop a fault diagnosis method for direct online induction motors due to GSSL’s superior feature that only a small amount of labeled data is needed in training datasets. To evaluate its suitability, the greedy-gradient max cut (GGMC) algorithm in the GSSL family is chosen in this study, and an effective fault diagnosis approach is developed using experimental stator currents recorded in the lab for two induction motors. The developed approach can conduct binary and multiclass classifications for faults on direct online induction motors. As a critical step, curve fitting equations are developed to calculate features for untested motor loadings by using experimental data for tested motor loadings, which enables the proposed approach to remain effective under all potential motor loading conditions.
机译:机器学习已经进入感应电机故障诊断区域,受到监督学习和深度学习。然而,两种学习方法都需要大量标记的数据来训练模型,这在现实生活中构成了重大挑战。为了克服这个问题,本文采用基于图形的半监督学习(GSSL)来开发由于GSSL的优越特征为直接在线感应电机的故障诊断方法,只需在训练中需要少量标记的数据数据集。为了评估其适用性,在本研究中选择了GSSL系列中的贪婪梯度最大切割(GGMC)算法,并使用在实验室中的实验室电流进行两个感应电动机的实验定子电流开发了有效的故障诊断方法。开发的方法可以对直接在线感应电机的故障进行二进制和多批分分类。作为关键步骤,开发了曲线拟合方程以通过使用测试电动机负载的实验数据计算未测试的电动机负载的特征,这使得所提出的方法能够在所有潜在的电动机负载条件下保持有效。

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