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引用次数: 0
摘要
公用管线通常与架空高压输电线路(OHTL)并联敷设。由于电磁耦合(EMC)效应，管道上的感应电位可达到危险水平，对公用事业操作人员和公众可进入的区域造成潜在的不安全状况。这种感应电位会加剧管道的腐蚀，并对邻近的通信网络造成不良的电磁干扰。本文研究了特高压交流架空输电线路(EHV AC OHTL)附近的管道。此外，还讨论了管道位置剖面和土壤电阻率的影响。利用电磁瞬变程序软件(ATP/ EMTP)的建模包Alternative Transient Program进行分析。
Assessment of Induced Potential on Metallic Pipeline Located Nearby to EHV AC OHTL
Utility pipelines are often laid in parallel with overhead high voltage power transmission lines (OHTL). Induced potential on the pipeline due to the electromagnetic coupling (EMC) effect can reach dangerous levels, resulting in potentially unsafe conditions for utility operating personnel and in those areas accessible to the public at large. Such induced potential can exasperate pipeline corrosion and cause undesirable electromagnetic interference on neighboring communication networks. In this paper, a pipeline located close to extra high voltage AC overhead transmission lines (EHV AC OHTL) is studied. In addition, the impact of pipeline location profiles and earth soil resistivity are discussed. The analysis is carried out by using Alternative Transient Program which is the modelling package of Electromagnetic Transient Program Software (ATP/ EMTP).
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