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首页> 外文期刊>Electric power systems research >Locating lightning strikes and flashovers along overhead power transmission lines using electromagnetic time reversal
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Locating lightning strikes and flashovers along overhead power transmission lines using electromagnetic time reversal

机译：使用电磁时间反转沿架空输电线路定位雷击和闪络

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The paper presents a method to identify the location of direct lightning strikes to overhead transmission lines and potential subsequent flashover(s). The method is based on the electromagnetic time reversal theory and relies on the use of a single measurement point to record voltage transient signals originated by a direct lightning strike either on the phase conductors or shielding wires, and possible flashovers. The measurement system is supposed to be installed on the secondary winding of the transformer located at the line feeding substation. The performance of the proposed method, applicable for different power network topologies, is validated by using different numerical simulations applied to various case studies. The paper also discusses the impact of the grounding system model, high-frequency transformer model, presence of surge arresters as well as soil electrical parameters. (C) 2018 Elsevier B.V. All rights reserved.
机译：本文提出了一种方法，用于识别对架空传输线的直接雷击的位置以及潜在的后续闪络。该方法基于电磁时间反转理论，并依赖于使用单个测量点来记录电压瞬变信号，该电压瞬变信号是由相导体或屏蔽线上的直接雷击以及可能的闪络产生的。该测量系统应该安装在位于馈电变电站的变压器的次级绕组上。通过使用应用于各种案例研究的不同数值模拟，验证了所提出方法的性能，适用于不同的电网拓扑。本文还讨论了接地系统模型，高频变压器模型，避雷器的存在以及土壤电参数的影响。 （C）2018 Elsevier B.V.保留所有权利。

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