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Study on Factors Influencing the Mitigation of AC Interference

机译:影响交流干扰缓解因素的研究

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Recently, pipelines are being constructed in parallel with high voltage power lines due to industrial development. This results in AC interference which gets more and more attentions for leading to electric shocks and accelerating corrosion of pipelines. A mitigation system can decrease AC potential and AC corrosion. Design of a mitigation system is complex. The effects of the following factors on the mitigation system were studied: the number of connections between mitigation wires and pipelines, locations of mitigation wires and connections, orientation of mitigation wires (horizontal or vertical). The results show that installing mitigation at one place can increase the induced AC voltages in other place even separated by many kilometers. The induced AC voltages along the pipeline decrease with increasing connections. The locations of mitigation wires and connections have an effect on induced AC voltage peaks and the best locations for them are the positions with voltage peaks. Minimum interference level is achieved when mitigation wires are located at the side of power line around pipe. When the zinc (Zn) ribbon is shorter than 850 m, mitigation effectiveness of vertical Zn ribbons are better than that of horizontal ones. Above 850 m, horizontal Zn ribbons are better. These results can provide the readers with suggestions that make the design of mitigation system more effective and more economical.
机译:近来,由于工业发展,正在与高压电力线并联地构造管道。这导致交流干扰,引起电击和加速管道腐蚀而引起越来越多的关注。缓解系统可以降低交流电势和交流电腐蚀。缓解系统的设计很复杂。研究了以下因素对缓解系统的影响:缓解线和管道之间的连接数,缓解线和连接的位置,缓解线的方向(水平或垂直)。结果表明,在一处安装缓解措施可以增加另一处的感应交流电压,甚至相隔几千米。沿着管道的感应交流电压随连接数的增加而降低。缓解线和连接的位置会对感应的交流电压峰值产生影响,而对于它们而言,最佳位置是带有电压峰值的位置。当缓解线位于管道周围的电源线一侧时,可以达到最小的干扰水平。当锌(Zn)带短于850 m时,垂直Zn带的缓解效果要好于水平Zn带。在850 m以上,水平Zn带更好。这些结果可以为读者提供一些建议,使缓解系统的设计更有效,更经济。

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