冲击泄流时接地体周围电势分布的FDTD分析 |
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引用本文: | 曾繁春,陈加清,梁妙元,王盼.冲击泄流时接地体周围电势分布的FDTD分析[J].安全与电磁兼容,2010(1):83-85. |
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作者姓名: | 曾繁春 陈加清 梁妙元 王盼 |
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作者单位: | 解放军理工大学气象学院;解放军92810部队;解放军理工大学气象学院 |
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摘 要: | 仿照冲击接地实验,建立时域有限差分(FDTD)计算模型,计算冲击泄流时接地体周围的冲击电势,给出了多个取样点上冲击电势的时域波形,分析了时域波形及其空间分布特征,得出了冲击电势测量取样点应位于接地体附近,以及土壤电导率越小,冲击电势峰值越高等结论,此研究结果对于科学地设计冲击接地实验具有重要的指导意义。
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关 键 词: | 时域有限差分 冲击泄流 冲击电势 冲击接地实验 |
FDTD Analysis of the Distribution of Potential Rise around the Grounding Conductor Discharging Impulse Current |
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Abstract: | Following the impulse grounding experiment,the finite-difference time-domain(FDTD) calculation model is built;the transient ground potential rise around the grounding conductor is calculated;the waveforms of the transient ground potential rise at many sample dots are presented;the time and space domain characteristics of these potential waveforms are analyzed.It has come to a conclusion that the proper location of the sample dots should be near the grounding conductor;and the lower the electrical conductivi... |
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Keywords: | finite-difference time-domain impulse current discharge transient ground potential rise impulse grounding experiment |
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