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Analysis of Fault Characteristics of Damaged Armor Layer of Submarine Cables Based on Weak Magnetic Detection
ID：22 View Protection：ATTENDEE Updated Time：2025-11-10 10:55:46 Hits：142 Oral Presentation

Start Time：Pending（Asia/Shanghai）

Duration：Pending

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Abstract
With the advancement of the "dual carbon" goals and the rapid development of new energy technologies, the construction of offshore wind farms has grown rapidly, and submarine cables, as key infrastructure, have been widely applied. Correct operation and maintenance of submarine cables are crucial for ensuring energy supply and promoting economic development. This paper uses weak magnetic detection technology to conduct an in-depth analysis of the damage faults in the armor layer of submarine cables. For a 35kV XLPE submarine cable, three detection areas were set up: a normal section, a section with minor anchor damage to the armor layer, and a section with severe anchor damage to the armor layer. An alternating current was injected to generate a magnetic field, and then a three-category feature extraction method composed of statistical morphology, frequency domain structure, and wavelet perturbation was constructed. Finally, the results of feature extraction were analyzed. The research results show that using magnetism to detect damage to the armor layer of submarine cables can identify minor damage in the early stage of faults, allowing for timely repair measures to be taken, thereby extending the service life of submarine cables and improving their reliability.
Keywords
Undersea cables,Fault analysis,Weak magnetic detection,Armor layer damage,magnetic anomaly
Speaker
Qian Su
doctoral candidate Xi'an Jiaotong University

Submission Author
Qian Su Xi'an Jiaotong University
Yu Zhang Jiangsu Clean Energy Branch； Huaneng Power International Inc.
Jianjian Zhao Jiangsu Clean Energy Branch; Huaneng Power International Inc.;
Jinyuan Zhu Xi'An Jiaotong University
WenXuan Zhang Xi'an Jiaotong University;
Chao Kong Huaneng Jiangsu Clean Energy Branch
shouwang zhao Xi'An Jiaotong University;
Tuanjie Wang Xi’an Thermal Power Research Institute Co. Ltd.
Yong Zhao Xi’an Thermal Power Research Institute Co. Ltd
Yongjun Xu Zhongtian Technology Submarine Cable
Bo Tong Xi’an Thermal Power Research Institute Co. Ltd
Yu Chen Xi'an Jiaotong University
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Important Date

  • Conference Date

    Nov 21

    2025

    to

    Nov 23

    2025

  • Oct 20 2025

    Draft paper submission deadline

  • Dec 08 2025

    Registration deadline

Sponsored By
IEEE Instrumentation and Measurement Society
South China University of Technology
Organized By
South China University of Technology
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