摘要
为精确模拟模型绝缘子污闪发生过程以探索污闪的机理、建立污闪的预测机制,用静态电场有限元分析法计算了典型模型绝缘子的临界闪络条件、闪络发展中弧长和电流的变化、弧足场强分布及形成系数等参数。比较该计算法、传统分析计算法和实测3种结果表明,有限元法仿真计算模型绝缘子的动态污闪过程和有关特征量可方便地处理表面复杂或表面污秽分布不均匀的模型;比电荷模拟法及电路分析法更适合分析计算绝缘子污闪。
The finite element method for electrostatic field analysis is used for calculating the critlcal parameters, uynamic variety of current, arc length, form factor and distribution of electric field during the development of flashover. By comparing the results from this method with ones from experiments or other methods, it can be found that. the method is practical. This method is more convenient and accurate for analyzing contamination flashover of insulator than other traditional methods such as circuit analysis and eharge simulation, especially for the model with tom plex shape or heterogeneous contamination distribution
出处
《高电压技术》
EI
CAS
CSCD
北大核心
2006年第3期1-3,9,共4页
High Voltage Engineering
基金
航空基金项目(04F53036)
关键词
建模
仿真
有限元
污闪
modeling
simulation
limited element
flashover
