电瓷避雷器Issue(6)：91-97,7.DOI:10.16188/j.isa.1003-8337.2025.06.011
基于莱维飞行的架空线路走廊土壤电参数估计研究
Estimation of Soil Electrical Parameters Under Overhead Line Corridors Based on Lévy's Flight
摘要
Abstract
The estimation of soil electrical parameters is an important basis for the design of overhead ground wires.In order to accurately and effectively obtain the characteristics of soil electrical parameters in overhead line corridors,a soil parameter estimation method for overhead line corridors based on four-electrode arrangement is proposed,by deriving the numerical formula under the four-electrode method and introducing the Lévy flight combined with particle swarm optimization to estimate the multilayer hori-zontally stratified soil electrical parameters,an accurate output of the multilayer horizontally stratified ground electrical parameters can be achieved.Firstly,the soil resistivity measurement model under non-equally spaced electrode arrangement was established,and its soil resistivity calculation model was de-rived using the complex image method;then the particle swarm optimization algorithm introducing Lévy flight is used to fit the apparent resistivity under different electrode spans,and the performance of this hy-brid optimization strategy is analyzed based on two kinds of cases;finally,a comparative analysis is car-ried out with the CDEGS software,and the results show that the method can obtain lower error,and it can provide a theoretical basis for designing and retrofitting of overhead ground wires and tower grounding devices of transmission lines.关键词
非等间距布置/地线设计/莱维飞行/参数估计Key words
non-equally spaced electrode arrangement/ground wire design/Lévy's flight/parameter estimation引用本文复制引用
张栋,马克,张东宏,陈莎,王轩..基于莱维飞行的架空线路走廊土壤电参数估计研究[J].电瓷避雷器,2025,(6):91-97,7.基金项目
中国电建集团华中电力设计研究院有限公司科技项目(编号:2023-KJ017).Project supported by Science and Technology Project of Power China Central China Electric Power Engineering Co.,Ltd.(No.2023-KJ017). （编号:2023-KJ017）
