海上高压共建平台110 kV电缆电磁辐射及屏蔽分析  

Electromagnetic Radiation and Shielding Analysis of 110 kV Cable on High-voltage Co-construction Offshore Platform

作　　者：封园 桑军 周新刚 樊冰 李少芳 FENG Yuan;SANG Jun;ZHOU Xingang;FAN Bing;LI Shaofang(Bohai Oil Research Institute,Tianjin Branch,CNOOC(China)Limited,Tianjin 300459,China;Equipment and Technology Company,CNOOC Energy Development Co.,Ltd.,Tianjin 300452,China)

机构地区：[1]中海石油(中国)有限公司天津分公司渤海石油研究院,天津300459 [2]中海油能源发展股份有限公司装备技术公司,天津300452

出　　处：《中国海洋平台》2025年第2期73-78,共6页China offshore Platform

摘　　要：以110 kV高压输配电设备与油气处理设施平台共建的海上某CEPC平台为例,采用CST Studio Suite电磁仿真软件对共建平台进行3D建模分析。采用数值模拟方法在高压电缆周围设置探针,对电缆周围空间内不同位置电磁场作对比分析并与现有标准进行比较。得知110 kV高压电缆周边电磁场强度较大,对连接的周边甲板及平台支柱有一定的影响,但均满足现有标准对公众曝露控制限值的要求。为进一步降低高压电缆电磁环境对人员及设备设施的影响,增加电磁屏蔽防护措施,对电缆桥架及其厚度、电缆间距及布局进行详细分析,发现增加电缆桥架及电缆“品”字形布局后,110 kV高压电缆周边的电磁场强度明显降低。提出的高压电磁屏蔽防护措施可为后续工程项目提供重要的参考借鉴。Taken the 110 kV high-voltage transmission and distribution equipment and oil and gas processing facilities platform of an offshore CEPC platform as an example,the CST Studio Suite electromagnetic simulation software is used to make up the 3D modeling analysis.Through the numerical simulation method,the probes are set around the high-voltage cable,and the electromagnetic fields of different positions in the space around the cable are comparatively analyzed,which is compared with the existing standards.It is known that the electromagnetic field around 110 kV high-voltage cable is strong,which is of certain influence on the connected peripheral deck and platform pillar.However,they all meet the requirements of the existing standards for the public exposure control limits.In order to reduce the impact of the electromagnetic environment of the high-voltage cable on the personnel and equipment and facilities,the protective measures are taken by increasing the electromagnetic shielding,and the cable bridge frame and its thickness,and the cable spacing and layout are analyzed in detail.It is found that after the addition of the cable bridge frame and application of the stacked tripartite square configuration layout of the cable,the electromagnetic field strength around the 110 kV high-voltage cable is significantly reduced.The protective measures of high-voltage electromagnetic shielding proposed can provide important reference for the subsequent engineering projects.

关 键 词：高压共建平台 110 kV电缆 电磁辐射 电磁屏蔽 

分 类 号：TE95[石油与天然气工程—石油机械设备]