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Analytical Model for Calculation of Current Density Distributions over Cross-Section of a Multi-Conductor Cable

机译：用于计算多芯电缆横截面电流密度分布的分析模型

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摘要

This work presents an analytical model based on Maxwell's equations for current density and electromagnetic field structure calculations in multi-conductor cables. One example of such cables is a composite fiber-optic overhead ground wire (OPGW). A circular multilayer waveguide model is used to represent approximately this cable. The waveguide consists of four layers: dielectric (silica) in the core, aluminum in the intermediate layer, steel in the outer layer and air. We analyze analytically TM~z_(0n) modes of the waveguide which have axial symmetry. The numerical results presented here are the dispersion characteristics, the distribution of the electromagnetic fields and the variation of the current density in the cross-section of the waveguide as a function of frequency. This model allows one in particular to investigate the skin effect and the electromagnetic fields inside and outside of the cable.

机译：这项工作提出了一个基于麦克斯韦方程的分析模型，用于多导体电缆中的电流密度和电磁场结构计算。这种电缆的一个例子是复合光纤架空地线（OPGW）。圆形多层波导模型用于近似表示该电缆。波导由四层组成：芯层中的电介质（二氧化硅），中间层中的铝，外层中的钢和空气。我们分析了具有轴向对称性的波导的TM〜z_（0n）模。此处给出的数值结果是色散特性，电磁场的分布以及波导横截面中电流密度随频率的变化。该模型特别允许研究电缆内部和外部的集肤效应和电磁场。

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来源
《55th IWCS/Focus~TM Conference》|2006年|307-314|共8页
会议地点 ProvidenceRI(US)
作者
Karlo Q. da Costa; Victor Dmitriev; Joao T. Pinho; Sergio Colle; Luciana Gonzalez; Marcelo A. Andrade; Joao C. V. da Silva; Mauro Bedia;
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作者单位

Department of Electric Engineering / Federal University of Para, Belem - Para - Brazil;

Department of Mechanical Engineering / Federal University of Santa Catarina, Florianopolis - Santa Catarina - Brazil;

Prysmian Telecomunicacoes Cabos e Sistemas do Bra;

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会议组织
原文格式 PDF
正文语种 eng
中图分类金属导电材料;通信电缆;
关键词
OPGW; waveguide model; current density; dispersion characteristics; electromagnetic fields; skin effect;

机译：OPGW；波导模型当前密度;分散特性；电磁场皮肤效果;

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1. Model inverse calculation of current distributions in the cross-section of a superconducting cable [J] . Usak P, Sastry PVPSS, Schwartz J Physica, C. Superconductivity and its applications . 2006,第1期

机译：超导电缆横截面中电流分布的模型逆计算
2. An analytical benchmark for the calculation of current distribution in superconducting cables [J] . L. Bottura, M. Breschi, M. Fabbri Cryogenics . 2003,第3a5期

机译：计算超导电缆中电流分布的分析基准
3. Analytical calculation of current distribution in multistrand superconducting cables [J] . Bottura L., Breschi M., Fabbri M. IEEE Transactions on Applied Superconductivity . 2003,第2期

机译：多股超导电缆中电流分布的解析计算
4. Analytical Model for Calculation of Current Density Distributions over Cross-Section of a Multi-Conductor Cable [C] . Mauro Bedia, Karlo Q. da Costa, Victor Dmitriev, IWCS/Focus~TM Conference . 2006

机译：多导线横截面计算电流密度分布的分析模型
5. Experimental and mathematical modeling studies on current distribution in high temperature superconducting DC cables. [D] . Pothavajhala, Venkata. 2014

机译：高温超导直流电缆中电流分布的实验和数学建模研究。
6. Modelling of the Current Density Distributions during Cortical Electric Stimulation for Neuropathic Pain Treatment [O] . S. Fiocchi, E. Chiaramello, P. Ravazzani, 2018

机译：皮层电刺激神经痛治疗过程中电流密度分布的模型
7. DETERMINATION OF ANALYTICAL CALCULATION ERROR OF MAGNETIC FIELD OF HIGH-VOLTAGE CABLE LINES WITH TWO-POINT BONDED CABLE SHIELDS CAUSED BY NON-UNIFORM CURRENT DISTRIBUTION IN THE SHIELDS [O] . A. O. Tkachenko 2017

机译：用屏蔽中不均匀电流分布引起的双点粘结电缆屏蔽磁场分析计算误差的测定

Analytical Model for Calculation of Current Density Distributions over Cross-Section of a Multi-Conductor Cable

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