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首页> 外文期刊>E3S Web of Conferences >Induced electromagnetic field on underground metal pipelines running parallel to nearby high voltage AC power lines
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Induced electromagnetic field on underground metal pipelines running parallel to nearby high voltage AC power lines

机译：与附近高压交流电源线平行的地下金属管道上的感应电磁场

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摘要

High voltage AC (HVAC) power lines can induce significant amount of voltages on underground gas/oil metal pipelines in areas where they share similar Right of Way (RoW), the situation becoming serious particularly in case of fault conditions. Electromagnetic field generated by the HVAC power lines on these pipelines, generate unwanted voltages which present threats to the pipeline and its associated protective equipment such as cathodic systems. The aim of this research is to compute induced voltage on pipeline running parallel to HVAC power lines. The study was conducted using CDEGS software package and revealed that under steady state condition, results were in agreement with GB 6830-1986 standard. However, high currents are generated under single phase to ground short circuit rising the potential of adjacent soil including the underground pipeline beyond limits. Therefore, the gradient control wire mitigation technique is proposed to reduce these voltages to safe limits.
机译：高压交流（HVAC）电源线会在共享相似通行权（RoW）的区域中的地下天然气/石油金属管道上感应出大量电压，这种情况尤其在发生故障的情况下尤其严重。这些管道上的HVAC电力线产生的电磁场会产生有害的电压，从而对管道及其相关的保护设备（例如阴极系统）构成威胁。这项研究的目的是计算与HVAC电力线平行的管道上的感应电压。该研究使用CDEGS软件包进行，结果表明，在稳态条件下，结果符合GB 6830-1986标准。但是，在单相接地短路下会产生高电流，从而使包括地下管线在内的邻近土壤的电势超出极限。因此，提出了梯度控制线缓和技术以将这些电压降低到安全极限。

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