准确的土壤表征对输电线参数的影响:基于Carson修正公式的分析

2010 IEEE/PES Transmission and Distribution Conference and Exposition: Latin America (T&D-LA) Pub Date : 2010-11-01 DOI:10.1109/TDC-LA.2010.5762963

J. B. Gertrudes, M. Tavares, C. Portela

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引用次数: 3

摘要

本文从Carson修正表达式的数值积分直接计算横向和纵向输电线路参数时，评价了大地电导率和介电常数频率依赖性的影响。作为适当考虑频率相关土壤模型的重要性的一个例子，代表了实际的440 kV单相在线输电，将考虑地球电导率和介电常数频率相关土壤模型的纵向和横向参数与具有恒定电导率和介电常数的常见土壤表示进行了比较，假设低频近似可以忽略。

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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Influence of accurate soil representation for transmission-line parameters: Analyses based on Carson's modified formulations

In this paper the influence of earth's conductivity and permittivity frequency dependence are evaluated when calculating transversal and longitudinal transmission lines' parameters directly from numerical integration of Carson's modified expressions. As an example of the importance of properly considering the frequency-dependent soil model, an actual 440 kV single three-phase transmission-line was represented, comparing the longitudinal and transversal parameters considering the earth's conductivity and permittivity frequency dependence soil model in relation to the common soil representation with a constant conductivity and permittivity that can be neglected assuming a low frequency approximation.

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2010 IEEE/PES Transmission and Distribution Conference and Exposition: Latin America (T&D-LA)

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