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首页> 外文期刊>Electric power systems research >Accurate numerical method to evaluate the capacitances of multi-conductor power cables
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Accurate numerical method to evaluate the capacitances of multi-conductor power cables

机译：评估多导体电力电缆电容的精确数值方法

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摘要

This paper presents an accurate method to evaluate the capacitances of multi-conductor power cables. The method developed can also be applied to cables presenting multilayer dielectrics. Strips of charge are used to represent the electric charge distribution on conductors' surface, as well as to characterize the polarization charge distribution on interfaces separating two different dielectrics. The advantage of using strips of charge is to preserve charge continuity along conductor surfaces and dielectric interfaces. This methodology is accurate since the proximity effects among conductors are taken into account. Validation of the method is performed comparing experimental, other software and analytical results with those obtained by using the proposed numerical method. A cylindrical non-concentric capacitor is used for the analytical validation and a three-phase power cable is used on experimental tests.
机译：本文提出了一种准确的方法来评估多导体电力电缆的电容。开发的方法还可以应用于具有多层电介质的电缆。电荷条用于表示导体表面上的电荷分布，并表征分离两个不同电介质的界面上的极化电荷分布。使用电荷带的优点是保持沿导体表面和介电界面的电荷连续性。由于考虑了导体之间的邻近效应，因此该方法是准确的。通过将实验，其他软件和分析结果与使用所提出的数值方法获得的结果进行比较，对方法进行了验证。圆柱形非同心电容器用于分析验证，三相电力电缆用于实验测试。

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  • 来源
    《Electric power systems research》 |2013年第10期|184-191|共8页
  • 作者

    Joao Peres; M. Guerreiro das Neves; M.E. Almeida; V. Malo Machado;

  • 作者单位

    IST, Institute Superior Tecnico, Technical University of Lisbon, Av. R. Pais, 1049-001 Lisbon, Portugal;

    Institute de Telecomunkacoes, Institute Superior Ticnico, Technical University of Lisbon, Av. R. Pais, 1049-001 Lisbon. Portugal;

    CIE3, Institute Superior Tecnico, Technical University of Lisbon, Av. R. Pais, 1049-001 Lisbon, Portugal;

    Institute de Telecomunkacoes, Institute Superior Ticnico, Technical University of Lisbon, Av. R. Pais, 1049-001 Lisbon. Portugal;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Power cable; Capacitance evaluation; Proximity effect;

    机译：电源线;电容评估;邻近效应;

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