Magnetic field evaluation around 400 KV underground power cable under harmonics effects

Q3 Engineering Diagnostyka Pub Date : 2022-05-17 DOI:10.29354/diag/150068

Houari Boudjella, Ahmed Abi Ayad, T. Rouibah, Benyekhlef Larouci, Thamer A. H. Alghamdi, A. Althobaiti, S. Ghoneim, Abdelkader Si Tayeb

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引用次数: 1

Abstract

Power lines or underground power cables generate electromagnetic interaction with other objects near to them. This study evaluates the magnetic field emitted by underground extra high voltage cables. The presented work aims to show a numerical simulation of the magnetic field of a buried 400 kV underground power line, which is used as a novel prototype in several countries at a short distance. The underground power cable study, in the presence of the current harmonics at different positions, with time variation by finite element resolution, using Comsol Multiphysics with Matlab software in two dimensions. The simulation results illustrate the magnetic flux density variation-in terms of amplitude and distribution as a function of different actual harmonics rates. The underground cable performance and magnetic field have affected by the harmonics effects. The maximum magnetic induction levels generated by significant harmonics are superior to the limits recommended by the international standard norms. In this paper, shielding has been used as an appropriate remedy to attenuate the magnetic field.

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谐波作用下400kV地下电力电缆周围磁场的评价

电力线或地下电缆与附近的其他物体产生电磁相互作用。本研究评估了地下特高压电缆所发出的磁场。本文的目的是对埋藏的400千伏地下电力线的磁场进行数值模拟，该电力线作为一种新颖的原型在几个国家短距离内使用。利用Comsol Multiphysics软件和Matlab软件，对不同位置、随时间变化存在电流谐波的地下电力电缆进行了二维有限元分辨率研究。仿真结果表明，磁通密度的变化幅度和分布是不同实际谐波率的函数。谐波效应对地下电缆的性能和磁场都有影响。显著谐波产生的最大磁感应强度水平优于国际标准规范推荐的限值。本文采用屏蔽作为一种适当的补救措施来减弱磁场。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Diagnostyka Engineering-Mechanical Engineering

CiteScore

2.20

自引率

0.00%

发文量

期刊介绍： Diagnostyka – is a quarterly published by the Polish Society of Technical Diagnostics (PSTD). The journal “Diagnostyka” was established by the decision of the Presidium of Main Board of the Polish Society of Technical Diagnostics on August, 21st 2000 and replaced published since 1990 reference book of the PSTD named “Diagnosta”. In the years 2000-2003 there were issued annually two numbers of the journal, since 2004 “Diagnostyka” is issued as a quarterly. Research areas covered include: -theory of the technical diagnostics, -experimental diagnostic research of processes, objects and systems, -analytical, symptom and simulation models of technical objects, -algorithms, methods and devices for diagnosing, prognosis and genesis of condition of technical objects, -methods for detection, localization and identification of damages of technical objects, -artificial intelligence in diagnostics, neural nets, fuzzy systems, genetic algorithms, expert systems, -application of technical diagnostics, -diagnostic issues in mechanical and civil engineering, -medical and biological diagnostics with signal processing application, -structural health monitoring, -machines, -noise and vibration, -analysis of technical and civil systems.