摘要
由于传输走廊紧张,我国架空输电线路建设与输油输气管道常平行或交叉架设。“两线一地”电磁干扰问题、管道安全与防护是热门研究课题,但有关雷击输电线路时临近管道感应过电压的研究较少。文中采用电磁分析软件CDEGS建立简化的杆塔-管道模型,分别针对线路与管道的间距、地质条件及杆塔接地网结构对管道的电磁干扰影响进行仿真,计算分析输电线路杆塔迫近油气管道情况下管道防腐层雷电过电压的影响因素和防护效果,给出管道过电压防护的相关施工建议。研究结果可为输电线路及油气管道“两线一地”综合能源管廊建设和技术改造提供参考。
Due to the shortage of transmission corridors,the construction of overhead transmission lines in China is often parallel or cross-erected with oil and gas pipelines.Electromagnetic interference and the pipeline′s safety and protection of"two lines and one place"have become research hotspot.However,few studies are on the induced overvoltage of neighboring pipelines when lightning strikes transmission lines.The electromagnetic analysis software CDEGS is used to simulate the influence factors and protective effect of overvoltage induced by lightning of the pipeline anticorrosive coating when the transmission line tower is close to the oil and gas pipeline.A simplified model of the tower and pipeline is established.The distance between the line and pipeline,geological conditions and the structure of the grounding grid of the tower are simulated and analyzed.Corresponding construction suggestions for pipeline overvoltage protection are given.The research results provide reference for the construction and reconstruction of"two lines and one place".
作者
高晓东
安韵竹
毕斌
牛景光
咸日常
韩正新
GAO Xiaodong;AN Yunzhu;BI Bin;NIU Jingguang;XIAN Richang;HAN Zhengxin(State Grid Shandong Electric Power Company Maintenance Company,Jinan 250118,China;School of Electrical and Electronic Engineering,Shandong University of Technology,Zibo 255049,China;State Grid Zibo Power Supply Company of Shandong Electric Power Company,Zibo 255030,China)
出处
《电力工程技术》
北大核心
2021年第1期162-166,174,共6页
Electric Power Engineering Technology
基金
国家自然科学基金资助项目(51807113)
山东省自然科学基金资助项目(ZR2016EEQ20)。
关键词
雷击散流
管道过电压
间距
地质条件
杆塔接地网
lightning current divergence
pipeline overvoltage
spacing
geological conditions
tower grounding grid
