南方电网技术2024，Vol.18Issue(3)：56-64,9.DOI:10.13648/j.cnki.issn1674-0629.2024.03.006
海上风电单芯海缆接地环流影响因素分析
Analysis of Influence Factors on Grounding Circulating Current of Single-Core Submarine Cable of Offshore Wind Power
摘要
Abstract
Single-core submarine cables have more advantages in production and construction compared to three-core submarine cables,but the submarine cable faults caused by abnormal grounding circulating current in single-core submarine cables occur frequently.The operation mechanism and detection strategy of grounding circulating current of single-core submarine cable need to be further studied.A mathematical model for single-core submarine cables is established based on the impedance matrix,and the influences of factors such as armor resistivity,armor magnetic permeability,grounding resistance,and short-circuit resistance on the parameters within the impedance matrix and grounding circulating current are revealed.Combined with the practical engineering cases,the mechanism of uneven distribution of grounding circulating currents in submarine cables is analyzed,which provides refer-ence bases for the evaluation of the operational status and maintenance of submarine cables.关键词
单芯海缆/接地环流/阻抗矩阵/PSCAD仿真Key words
single-core submarine cable/grounding circulating current/impedance matrix/PSCAD simulation分类
动力与电气工程引用本文复制引用
杨玉新,王劲松,朱永利,李岩..海上风电单芯海缆接地环流影响因素分析[J].南方电网技术,2024,18(3):56-64,9.基金项目
中央高校基本科研业务费专项资金项目(2022MS068,20226932) （2022MS068,20226932）
中国大唐集团有限公司2020年重大科技项目(DTST[2020]-GC-002). Supported by the Special Fund Project for Fundamental Business Expenses of Central Universities(2022MS068,20226932) （DTST[2020]-GC-002）
the Major Science and Technology Projects of China Datang Corporation Co.,Ltd.in 2020(DTST[2020]-GC-002). （DTST[2020]-GC-002）
