南方电网技术2026，Vol.20Issue(4)：130-139,10.DOI:10.13648/j.cnki.issn1674-0629.2026.04.012
基于模拟实验和真实场景参数的山火输电线路间隙电场畸变特性分析
Analysis of Electric Field Distortion Characteristics in Power Line Gaps During Wildfires Based on Simulation Experiments and Real-Scenario Parameters
摘要
Abstract
In current simulation studies on the impact of wildfires on the electric field of transmission line gaps,the relationship between burning particles and conductor spacing,as well as the electric field distortion effect,remains unclear.Additionally,the influ-ence of meteorological factors and vegetation characteristics on the spatial distribution of burning particles has not been considered.To address this,a highly coupled multi-physics optimization simulation model integrating thermal,flow field,electric,and particle motion is developed based on simulated experiments and real-scenario parameters.This model combines micro-and macro-scale perspectives to analyze the intrinsic mechanisms of electric field distortion in transmission lines caused by wildfires.After verifying the model's accuracy,the proposed model can simulate flame combustion at different stages of wildfires and particle motion in transmission line gaps at a microscopic level,while also providing theoretical support for macro-scale analysis of the influence of vegetation characteristics and meteorological factors on gap insulation performance.The results show that the electric field on the conductor surface during a wildfire is approximately 7.14 times that under normal conditions.The spacing between burning particles and transmission conductors affects the electric field distortion effect,with the maximum distortion ratio and range beginning to rise significantly and gradually stabilizing when the spacing is between 0.2 and 0.15 meters.Vegetation characteristics and meteorologi-cal factors influence the insulation performance of the gap by altering the spatial distribution of burning particles in wildfire gaps.The research findings contribute to evaluating the safety of transmission lines during wildfire disasters and provide a theoretical basis for emergency response strategies.关键词
输电线路/山火/燃烧颗粒/电场畸变/粒子运动Key words
transmission lines/wildfire/combustion particles/electric field distortion/particle motion分类
信息技术与安全科学引用本文复制引用
李磊,张雷,富梦迪,黄登一,林柏森,周晓静,谢从珍..基于模拟实验和真实场景参数的山火输电线路间隙电场畸变特性分析[J].南方电网技术,2026,20(4):130-139,10.基金项目
国家自然科学基金资助项目(51977084). Supported by the National Natural Science Foundation of China(51977084). （51977084）
