Frequency dependent model of underground cables for harmonic calculations in frequency domain

2014 6th International Conference on Information Technology and Electrical Engineering (ICITEE) Pub Date : 2014-10-01 DOI:10.1109/ICITEED.2014.7007938

K. Malekian, U. Schmidt, Abudllah Hoshmeh, A. Shirvani

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引用次数: 10

Abstract

Modeling underground cables for application in harmonic calculations in frequency domain is discussed thoroughly in this paper. At first, equations and frequency-dependent parameters to describe the zero-, negative-, and positive-sequence cable impedances as well as the coupling between them are presented. Afterwards, the influence of cable arrangement on the zero-, negative-, and positive-sequence cable impedances is investigated over the frequency. In this regard, some representative cable systems with different arrangements are simulated. Physical interpretation of the simulation results for the different cable arrangements contributes to comprehend the behavior of underground cables over the frequency in zero, negative, and positive sequences. Subsequently, based on the findings, modeling underground cables for harmonic calculations in the frequency domain is discussed. Finally, the validity of the proposed model is proved by comparing the simulation results with measurements on a medium voltage cable.

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地下电缆频域谐波计算的频率依赖模型

本文对地下电缆建模在频域谐波计算中的应用进行了深入的探讨。首先，给出了描述零序、负序和正序电缆阻抗以及它们之间耦合的方程和频率相关参数。然后，在频率范围内研究了电缆布置对零序、负序和正序电缆阻抗的影响。为此，对几种具有代表性的不同布置方式的电缆系统进行了仿真。对不同电缆布置的模拟结果的物理解释有助于理解地下电缆在零、负和正序列频率上的行为。在此基础上，讨论了地下电缆频域谐波计算的建模问题。最后，将仿真结果与中压电缆的实测结果进行比较，验证了所提模型的有效性。

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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2014 6th International Conference on Information Technology and Electrical Engineering (ICITEE)

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