高压交流电缆对海底管道电磁干扰的计算分析  

Calculation and Analysis of Electromagnetic Interference of High Voltage AC Cable to Seabed Pipeline

作　　者：田念佩 梁守才 袁洵 梁毅 杜艳霞 TIAN Nianpei;LIANG Shoucai;YUAN Xun;LIANG Yil;DU Yanxia(Institute for Advanced Materials and Technology,University of Science and Technology Beijing,Beijing 100083,China;Liaohe Oilfield Oil and Gas Gathering and Transportation Company,Panjin 124010,China)

机构地区：[1]北京科技大学新材料技术研究院,北京100083 [2]辽河油田油气集输公司,盘锦124010

出　　处：《腐蚀与防护》2023年第10期60-66,71,共8页Corrosion & Protection

摘　　要：结合现场实例,运用CDEGS电磁干扰模拟软件,建立简单模型,探究不同影响因素对管道交流干扰的影响规律。结果表明:在不同相对位置下,并行长度对交流干扰的影响程度不同;随着并行间距的减小、负载电流、负载电流不平衡度和海缆外被层面电阻率的增大,管道的交流干扰增大。通过建立简单模型进一步探究了海缆外被层面电阻率对电磁干扰的影响,结果表明,随着外被层面电阻率增加,海底电缆阻性耦合作用会增强,管道上产生的干扰电压增大。Based on on-site examples and CDEGS electromagnetic interference simulation software,a simple model was established to explore the impact of different influencing factors on pipeline AC interference.The results indicated that the influence of parallel length on AC interference varied at different relative positions.As the parallel spacing decreased,the load current,the imbalance of load current,and the resistivity of the outer layer of the seabed cable increasd,and the AC interference of the pipeline increased.By establishing a simple model,the influence of the resistivity of the outer layer of the seabed cable on electromagnetic interference was further explored.The results showed that as the resistivity of the outer layer increased,the resistive coupling effect of the seabed cable would be enhanced,and the interference voltage generated on the pipeline would increase.

关 键 词：高压交流电缆 海底管道 电磁干扰 CDEGS 海缆外被层 

分 类 号：TG174.4[金属学及工艺—金属表面处理]