一种基于GAMF-CNN的航空发电机整流器故障诊断技术
收稿日期: 2024-03-18
修回日期: 2024-03-31
录用日期: 2024-04-22
网络出版日期: 2024-05-08
基金资助
国家自然科学基金(51977108)
A technique for aerospace generator rectifier fault diagnosis based on GAMF-CNN
Received date: 2024-03-18
Revised date: 2024-03-31
Accepted date: 2024-04-22
Online published: 2024-05-08
Supported by
National Natural Science Foundation of China(51977108)
崔江 , 周凡 , 陈永凡 , 于立 , 张卓然 . 一种基于GAMF-CNN的航空发电机整流器故障诊断技术[J]. 航空学报, 2024 , 45(24) : 330398 -330398 . DOI: 10.7527/S1000-6893.2024.30398
To address the problems such as less actual sample data of aerospace generator rectifier faults, a fault diagnosis technique based on Gramian Angular Multiply Field-Convolutional Neural Network (GAMF-CNN) is presented. First, original rectifier fault signals are collected and preprocessed, and the one-dimensional time series signals are transformed into GAMF images, so that the fault diagnosis problem can be transformed into an image recognition problem. Second, with the help of deep transfer learning concept, a convolutional neural network is used to transfer the fault feature knowledge obtained from the simulation to the real generator rectifier that lacks fault data. Finally, the aerospace generator rectifier fault diagnosis problem with small sample data is solved. Experimental verification and comparison with some existing methods find that the propsoed method can realize diagnosis and localization of faulty diodes with high accuracy.
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