摘要
针对现有的雷电屏蔽理论———电气几何模型 (EGM )和先导传播模型 (LPM)的不足 ,对雷击物理过程和输电线路绕击分散性进行了研究 .提出了对输电线路雷电屏蔽及其模拟理论的一些新认识 ,建立了考虑放电分散性的输电线路雷击仿真模型 ,将此模型用于 5 0 0kVZM1 39型线路在平原地段的绕击率的计算 。
The physical process of lightning stroke and the scatter of shielding failure on transmission line were studied. Some new knowledge about lightning shielding of transmission line and the simulation theory was proposed. A lightning stroke simulation model of transmission line, based on the discharge dispersity, was proposed. The model was applied to calculate the rate of shielding failure of 500?kV ZM 1 39 transmission line in plain. The calculated results by the proposed model showed good agreements with the field experiences.
出处
《华中理工大学学报》
CSCD
北大核心
2000年第6期53-55,共3页
Journal of Huazhong University of Science and Technology
基金
国家自然科学基金资助项目! (5 95 770 1 5 )
关键词
雷电屏蔽
输电线路
放电分散性
雷击仿真模型
lightning shielding
transmission line
discharge dispersity
lightning stroke simulation model
