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Insulation Degradation Mechanism and Diagnosis Methods of Offshore Wind Power Cables: An Overview

Author

Listed:
  • Baopeng Lu

    (School of New Energy and Power Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China)

  • Shuaibing Li

    (School of New Energy and Power Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China)

  • Yi Cui

    (School of Engineering, University of Southern Queensland, Brisbane 4702, Australia)

  • Xiaowei Zhao

    (Linxia Power Supply Company, State Grid Gansu Electrical Power Company, Linxia 731100, China)

  • Daqi Zhang

    (School of New Energy and Power Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China)

  • Yongqiang Kang

    (School of New Energy and Power Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China)

  • Haiying Dong

    (School of New Energy and Power Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China)

Abstract

The marine environment in which offshore wind turbines are located is very complex and subjected to a variety of random loads that vary with time and space. As an important component of offshore wind power, the cable also bears the impact of the environment in which most of the turbines are located. Under the long-term action of mechanical stresses such as tension, torsion, and vibration, the cable insulation will crack due to stress fatigue leading to partial discharge, which seriously affects its electrical performance. The study of the mechanism of the change of electrical properties of cable insulation due to mechanical behavior is of great theoretical guidance to improve the reliable operation of cables. This paper first introduces the basic characteristics and operating conditions of torsion-resistant cables and submarine cables. Then the mechanical behavior of the cables is summarized, and the deterioration mechanism and deterioration effect of wind power cable insulation under the influence of multiple factors such as heat, oxygen, and mechanical stress are sorted out. Then, the basic principles of wind power cable operation condition monitoring methods and their characteristics are described. Finally, the relevant methods for the detection of hidden defects inside the insulation are summarized.

Suggested Citation

  • Baopeng Lu & Shuaibing Li & Yi Cui & Xiaowei Zhao & Daqi Zhang & Yongqiang Kang & Haiying Dong, 2022. "Insulation Degradation Mechanism and Diagnosis Methods of Offshore Wind Power Cables: An Overview," Energies, MDPI, vol. 16(1), pages 1-26, December.
    • Handle: RePEc:gam:jeners:v:16:y:2022:i:1:p:322-:d:1017463
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    References listed on IDEAS

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    1. Taormina, Bastien & Bald, Juan & Want, Andrew & Thouzeau, Gérard & Lejart, Morgane & Desroy, Nicolas & Carlier, Antoine, 2018. "A review of potential impacts of submarine power cables on the marine environment: Knowledge gaps, recommendations and future directions," Renewable and Sustainable Energy Reviews, Elsevier, vol. 96(C), pages 380-391.
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    Cited by:

    1. Asfarina Abu Bakar & Chai Chang Yii & Chin Kui Fern & Yoong Hou Pin & Herwansyah Lago & Mohamad Nur Khairul Hafizi Rohani, 2023. "A Comparison of Double-End Partial Discharge Localization Algorithms in Power Cables," Energies, MDPI, vol. 16(4), pages 1-19, February.

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