Controllability Intelligence of Lightning Protection System due to 110kV Transmission line

2019 International Conference on Communication and Electronics Systems (ICCES) Pub Date : 2019-07-01 DOI:10.1109/ICCES45898.2019.9002106

M. Ibrahim, Lin Li, Ping Wang

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引用次数: 1

Abstract

A lightning protection system (LPS) of an urban 110 kV substation is designed and analysed according to NFPA 780 and IEC 62305–3 standards. The analysis of the LPS is based on the value of risk assessment. The total area of the plant is described by one soil layer with uniform resistivity. This study aims to improve the understanding of unexpected attitude of the grounding grid system under lightning strike currents by explaining the basic notion of the lightning protection level. The program is integrated with the CDEGS software, which provides effective geometrical modeling with object and result visualization. Furthermore, module and automated fast Fourier fransform is implemented in this study to simulate electromagnetic fields in the period and frequency scope. These current values are compared to the desired protection levels within the standards. The study results show that for the improved protection of the system against lightning, the total power grid must be considered as a source of improvement for studying shielding influence and the protection levels provided inside this substation.

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110kV输电线路防雷系统的可控性智能

根据NFPA 780和IEC 62305-3标准，对城市110千伏变电站的防雷系统进行了设计和分析。对LPS的分析是基于风险评估的价值。植物的总面积是用一个具有均匀电阻率的土层来描述的。本研究旨在透过解释防雷等级的基本概念，增进对雷击电流作用下接地网系统意外姿态的了解。该程序与CDEGS软件集成，提供了有效的几何建模与对象和结果可视化。在此基础上，采用模块化和自动化的快速傅里叶变换对周期和频率范围内的电磁场进行模拟。将这些电流值与标准内所需的保护级别进行比较。研究结果表明，为了提高系统的防雷保护能力，必须将总电网作为改进源来研究该变电站的屏蔽影响和保护水平。

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2019 International Conference on Communication and Electronics Systems (ICCES)

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