交流变电站对管道电磁干扰缓解措施研究

Study on Mitigation Measures for Electromagnetic Interference of AC Substation on Pipeline

为研究某交流变电站对邻近管道的电磁干扰影响,采用数值模拟的方法计算了变电站单相接地故障时管道的相关安全参数。针对接触电压超标的情况,应用软件比较了缓解方案,具体解决方法是将管道与阀室接地极通过固态去耦合器连接,再在管道与变电站并行的位置设置梯度控制线。

In order to study the electromagnetic interference effect of an AC substation on adjacent pipelines, the numerical simulation method was used to calculate the relevant safety parameters of the pipeline during the single-phase ground fault of the substation. For the case of touch voltage exceeding the standard, the mitigation methods were compared by the software. The specific mitigation method is to connect the pipeline to the grounding of the valve room through the solid state decoupler, and then set the gradient mitigation line in parallel with the pipeline near the AC substation.