高压电器2018，Vol.54Issue(2)：1-6,6.DOI:10.13296/j.1001-1609.hva.2018.02.001
沙尘环境中棒—板间隙电场分布仿真及放电特性分析
Simulation of Electric Field Distribution and Analysis of Discharge Characteristics for Rod-plane Air Gap with the Presence of Sandstorm
摘要
Abstract
The discharge characteristic of air gap is one of the key control factors of the insulation level of transmission line.Sandstorm has a certain effect on the discharge characteristics of air gap.To understand this effect,in this paper,the electric field distribution of the rod-plane air gap under sandstorm condition is simulated.The inhomogeneity of medium is considered when the sand particles present in the gap,and detailed three-dimensional simulation models are established,using this simulation model,the electric field intensity in the gap is calculated.Based on the calculation result,the electric field in the area around the sand shows an obvious distortion.The electric field increases in the direction from the sand particle to the end of the rod electrode;and the electric field decreases in the vertical direction.The existence of sand particles can only affect the distribution of electric field in the region of 5 times of its radius.And the effect of sand particles on the electric field distribution in the surface of the rod electrode and the region far away from the sand is very small.关键词
空气间隙/电场/沙尘/放电特性Key words
air gap/electric field/sandstorm/discharge characteristic引用本文复制引用
律方成,刘畅,丁玉剑..沙尘环境中棒—板间隙电场分布仿真及放电特性分析[J].高压电器,2018,54(2):1-6,6.基金项目
国家自然科学基金(51207055) （51207055）
中央高校基本科研业务费专项资金(14ZP10).Project Supported by National Natural Science Foundation of China(51207055),Fundamental Research Fund for the Central Universities(14ZP10). （14ZP10）
