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高压电器  2014 

海底交流电缆暂态过电压仿真计算

, PP. 58-65

Keywords: 暂态过电压,海底交流电缆,PSCAD/EMTDC

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Abstract:

针对海底交流电缆输电系统发生的单相短路和三相短路故障,在PSCAD/EMTDC平台上搭建仿真模型,仿真计算了短路故障引起的暂态过电压。对于110kV中性点接地和35kV中性点不接地海底电缆输电系统,分别对不同输送功率、不同输送距离和不同短路容量等情况下海缆的暂态过电压进行了仿真,计算了海缆线路上产生的最大过电压值,分析了最大过电压与这些变量之间的变化关系以及内在的物理机理。研究结果对于海缆线路和变电站的绝缘水平以及其他系统参数的确定具有参考价值。

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