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耦合于架空线的雷电波电磁场:理论,数字仿真及实验验证 被引量:1

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摘要 由近距离雷电回击引起的电磁场暂态计算需要精确模型,以便于计算入射雷电电磁脉冲(LEMP)及其与线路耦合产生的影响。同时考虑到网络拓扑的复杂性及电力系统元件和保护设备的行为,将雷电电磁脉冲对传输线路耦合模型加入到软件工具中进行全网暂态仿真是至关重要的。本文回顾了作者得出的考虑到雷电感应电压计算的最重要的结论。首先,说明了架空线上雷电电磁脉冲初始暂态的高级计算模型的理论基础。接下来用以下两种方式给出了相关实验验证:1)应用缩减尺度雷电磁脉冲和核电磁脉冲仿真器2)应用全尺度人工雷电。最后,本文对比了意大利北部真实配电系统中自然雷电感应电压的实验数据及以闪电所在位置的系统数据进行仿真的仿真器数据。
出处 《电工文摘》 2010年第1期14-28,共15页
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