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

Baopeng Lu, Shuaibing Li, Yi Cui, Xiaowei Zhao, Daqi Zhang, Yongqiang Kang and Haiying Dong
Additional contact information
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

Energies, 2022, vol. 16, issue 1, 1-26

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: offshore wind power; mechanical stress; torsion-resistant cable; submarine cable; deterioration mechanism (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

Downloads: (external link)
https://www.mdpi.com/1996-1073/16/1/322/pdf (application/pdf)
https://www.mdpi.com/1996-1073/16/1/322/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jeners:v:16:y:2022:i:1:p:322-:d:1017463

Access Statistics for this article

Energies is currently edited by Ms. Agatha Cao

More articles in Energies from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().