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PEEC simulation of lightning over-voltage surge with corona discharges on the over head wires

机译：PEEC模拟架空电线上电晕放电引起的雷电过电压浪涌

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摘要

In this paper, a simplified corona discharge model is adopted with a partial element equivalent circuit (PEEC) method in the time domain for simulation of lightning over-voltage surge. Effects of corona discharge to the voltage distortion and the electromagnetic coupling of the overhead wires are presented. In addition, the effect on the voltage measuring system to the induced voltage on its nearby parallel wire is presented and discussed. The corona progression from an overhead wire, to which a high voltage impulse is applied, is represented by the radial expansion of the conducting region. Undesired oscillations of the computed waveforms found in the authors' previous paper have been discarded by iteration process for calculation of the corona radius and the voltage of each PEEC element at each calculated time step. To confirm the validity of the presented model with the PEEC method, the calculated results are compared with experimental results. The calculated results agree well with the corresponding experimental ones. This shows that the PEEC method in the time domain with the corona model is of use in simulations of lightning surges propagating along overhead wires.
机译：本文采用时域简化的电晕放电模型和局部等效电路（PEEC）方法模拟雷电过电压浪涌。提出了电晕放电对架空线电压畸变和电磁耦合的影响。此外，还介绍并讨论了电压测量系统对其附近的平行线上的感应电压的影响。从架空导线施加电晕脉冲的电晕行进以导电区域的径向扩展表示。作者的前一篇论文中发现的计算波形的不希望有的振荡已通过迭代过程丢弃，用于计算每个计算出的时间步长处的每个PEEC元件的电晕半径和电压。为了用PEEC方法确认所提出模型的有效性，将计算结果与实验结果进行了比较。计算结果与相应的实验结果吻合良好。这表明带有电晕模型的时域PEEC方法可用于模拟沿架空导线传播的雷电浪涌。

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