Insulation Degradation Mechanism and Diagnosis Methods of Offshore Wind Power Cables: An Overview
Article
Article Title | Insulation Degradation Mechanism and Diagnosis Methods of Offshore Wind Power Cables: An Overview |
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ERA Journal ID | 123161 |
Article Category | Article |
Authors | Lu, Baopeng, Li, Shuaibing, Cui, Yi, Zhao, Xiaowei, Zhang, Daqi, Kang, Yongqiang and Dong, Haiying |
Journal Title | Energies |
Journal Citation | 16 (1) |
Article Number | 322 |
Number of Pages | 26 |
Year | 2023 |
Publisher | MDPI AG |
Place of Publication | Switzerland |
ISSN | 1996-1073 |
Digital Object Identifier (DOI) | https://doi.org/10.3390/en16010322 |
Web Address (URL) | https://www.mdpi.com/1996-1073/16/1/322 |
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. |
Keywords | deterioration mechanism; offshore wind power; mechanical stress; torsion-resistant cable; submarine cable |
ANZSRC Field of Research 2020 | 400803. Electrical energy generation (incl. renewables, excl. photovoltaics) |
Byline Affiliations | Lanzhou Jiaotong University, China |
School of Engineering | |
State Grid Gansu Electric Power Company, China |
https://research.usq.edu.au/item/yzw83/insulation-degradation-mechanism-and-diagnosis-methods-of-offshore-wind-power-cables-an-overview
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