南方电网技术2025，Vol.19Issue(10)：133-140,8.DOI:10.13648/j.cnki.issn1674-0629.2025.10.013
针对金属丝铠装结构的海缆传输线模型优化
Optimization of Submarine Cable Transmission Line Model for Wire Armoring Structures
摘要
Abstract
Analytical calculation based on transmission line model is a classical method to study the circulation of submarine cables,but this method considers the submarine cable armour layer is a uniform whole layer structure,while the actual armour is made of metal wires(steel wires)stranded together,and it will lead to errors and reduce the accuracy of submarine cable circulation analysis.For this reason,an optimization method for the transmission line model of metal wire armoured submarine cable is proposed based on the improved whale optimization algorithm(IWOA).Firstly,a test platform based on the simplified substitution model of submarine cable is built,and the validity of the 2D finite element simulation model for calculating the circulation flow of submarine cable with metal wire armouring structure is verified based on the measured data,and then the IWOA algorithm is used to carry out the joint analysis of finite element-MATLAB,to obtain the electrical resistivity and magnetic permeability of the whole layer of the armouring after equivalence,and the analytical model of submarine cable transmission line reflecting the structure of the metal wire armouring is established based on the equivalence results.Taking the 220 kV submarine cable as an object for example analysis,referring to the finite element results,compared with the traditional analytical calculation method which directly reduces the wire armouring to the whole layer structure,the accuracy of induced voltage and ground loop current obtained by the method proposed is improved by 290%and 40%,respectively,and the absolute error is less than 4.9%and 1.3%,respectively,and the computational efficiency is significantly higher than that of the finite element model.关键词
海底电缆/电缆建模/传输线理论/有限元/鲸鱼算法Key words
submarine cable/cable model/transmission line theory/finite element/whale algorithm分类
信息技术与安全科学引用本文复制引用
李岩,宋浩源,齐磊杰,乔俊杰,甄冠成,梁雨薇,刘晓坤..针对金属丝铠装结构的海缆传输线模型优化[J].南方电网技术,2025,19(10):133-140,8.基金项目
中央高校基本科研业务费专项资金资助项目(20226932,2024MS109). Supported by the Fundamental Research Funds for the Central Universities(20226932,2024MS109). （20226932,2024MS109）
