Research on Fault Diagnosis of Ship Propulsion System Based on Improved Residual Network

In ship propulsion, accurately diagnosing faults in permanent magnet synchronous motor is essential but challenging due to limitations in the intuitive characterization and feature extraction of fault signals. This study presents an innovative approach to motor fault detection by integrating phase-c...

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Main Authors: Wei Yuan, Julong Chen, Xingji Yu
Format: Article
Language:English
Published: MDPI AG 2025-01-01
Series:Journal of Marine Science and Engineering
Subjects:
Online Access:https://www.mdpi.com/2077-1312/13/1/70
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author Wei Yuan
Julong Chen
Xingji Yu
author_facet Wei Yuan
Julong Chen
Xingji Yu
author_sort Wei Yuan
collection DOAJ
description In ship propulsion, accurately diagnosing faults in permanent magnet synchronous motor is essential but challenging due to limitations in the intuitive characterization and feature extraction of fault signals. This study presents an innovative approach to motor fault detection by integrating phase-contrastive current dot patterns with an enhanced residual network, enhancing the diagnostic effect. Initially, the research involves creating a dataset that simulates stator currents. It is achieved through mathematical modeling of two common faults in permanent magnet synchronous motors: inter-turn short circuits and demagnetization. Subsequently, the parameters of the phase-contrastive current dot pattern are optimized using the Hunter-Prey Optimization technique to convert the three-phase stator currents of the motor into grayscale images. Lastly, a residual network, which includes a Squeeze-and-Excitation module, is engineered to boost the identification of crucial fault characteristics. The experimental results show that the proposed method achieves a high accuracy rate of 98.5% in the fault diagnosis task of motors, which can accurately identify the fault information and is significant in enhancing the reliability and safety of ship propulsion systems.
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institution Kabale University
issn 2077-1312
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series Journal of Marine Science and Engineering
spelling doaj-art-5c5a664c27144b77bd039146609a98282025-01-24T13:36:45ZengMDPI AGJournal of Marine Science and Engineering2077-13122025-01-011317010.3390/jmse13010070Research on Fault Diagnosis of Ship Propulsion System Based on Improved Residual NetworkWei Yuan0Julong Chen1Xingji Yu2College of Automation, Jiangsu University of Science and Technology, Zhenjiang 212100, ChinaCollege of Automation, Jiangsu University of Science and Technology, Zhenjiang 212100, ChinaDepartment of Architecture and Technology, Norwegian University of Science and Technology, Alfred Getz’vei 1, 7034 Trondheim, NorwayIn ship propulsion, accurately diagnosing faults in permanent magnet synchronous motor is essential but challenging due to limitations in the intuitive characterization and feature extraction of fault signals. This study presents an innovative approach to motor fault detection by integrating phase-contrastive current dot patterns with an enhanced residual network, enhancing the diagnostic effect. Initially, the research involves creating a dataset that simulates stator currents. It is achieved through mathematical modeling of two common faults in permanent magnet synchronous motors: inter-turn short circuits and demagnetization. Subsequently, the parameters of the phase-contrastive current dot pattern are optimized using the Hunter-Prey Optimization technique to convert the three-phase stator currents of the motor into grayscale images. Lastly, a residual network, which includes a Squeeze-and-Excitation module, is engineered to boost the identification of crucial fault characteristics. The experimental results show that the proposed method achieves a high accuracy rate of 98.5% in the fault diagnosis task of motors, which can accurately identify the fault information and is significant in enhancing the reliability and safety of ship propulsion systems.https://www.mdpi.com/2077-1312/13/1/70ship propulsion systempermanent magnet synchronous motorsfault diagnosisresidual networkphase-contrastive current dot pattern
spellingShingle Wei Yuan
Julong Chen
Xingji Yu
Research on Fault Diagnosis of Ship Propulsion System Based on Improved Residual Network
Journal of Marine Science and Engineering
ship propulsion system
permanent magnet synchronous motors
fault diagnosis
residual network
phase-contrastive current dot pattern
title Research on Fault Diagnosis of Ship Propulsion System Based on Improved Residual Network
title_full Research on Fault Diagnosis of Ship Propulsion System Based on Improved Residual Network
title_fullStr Research on Fault Diagnosis of Ship Propulsion System Based on Improved Residual Network
title_full_unstemmed Research on Fault Diagnosis of Ship Propulsion System Based on Improved Residual Network
title_short Research on Fault Diagnosis of Ship Propulsion System Based on Improved Residual Network
title_sort research on fault diagnosis of ship propulsion system based on improved residual network
topic ship propulsion system
permanent magnet synchronous motors
fault diagnosis
residual network
phase-contrastive current dot pattern
url https://www.mdpi.com/2077-1312/13/1/70
work_keys_str_mv AT weiyuan researchonfaultdiagnosisofshippropulsionsystembasedonimprovedresidualnetwork
AT julongchen researchonfaultdiagnosisofshippropulsionsystembasedonimprovedresidualnetwork
AT xingjiyu researchonfaultdiagnosisofshippropulsionsystembasedonimprovedresidualnetwork