Research on electromagnetic interference of transmission lines on buried pipelines
Yonghui Hu, Zhen Shao, Jianjun Sun, Jianjun Wang, Ming He, Yasong Yuan, Ruhui Yao · 2025
With the expansion of the construction scale of transmission lines and oil and gas pipelines, the phenomenon of ultra-high voltage transmission lines sharing corridors with buried pipelines has become increasingly common, leading to more prominent electromagnetic interference issues. This paper conducts a simulation analysis of the electromagnetic interference effects of 1000 kV single-circuit, double-circuit, and 1000 kV/500 kV mixed-pressure four-circuit transmission lines. By utilizing the CDEGS simulation software, the study simulates the impact of different tower structures on the induced voltage and current in buried pipelines under parallel and crossing scenarios. The results show that different transmission line structures exhibit significant differences in electromagnetic interference to pipelines, with the 1000 kV double-circuit umbrella tower structure, and mixed-pressure same-tower vertical-triangular structure showing the best performance in reducing interference. This paper provides theoretical foundations and engineering recommendations for the optimized design of transmission lines and their safe collaboration with pipelines.