摘要
由于特高压直流输电线周围存在空间电荷，直流输电线附近电场分布复杂，对附近的绝缘子闪络存在影响。本文基于上流有限元方法计算模拟了500kV单极高压直流线路附近的离子流场，采用迭代收敛控制算法，以保证迭代收敛；研究了空间电荷的存在对500kV直流绝缘子沿面参数的影响。
The space charge around ultra high voltage dc transmission line makes the electric field distribution nearby complicated, and has an effect on the insulator flashover nearby. The ion flow field near the 500kV single-electrode high voltage dc line is simulated based on the upper-class finite element method in this paper, and an iterative convergence control algorithm is adopted to ensure iterative convergence. The influence of space charge on the surface electric field parameters of 500 kV dc insulators is studied.
作者
李静
冯宇宁
刘骥陶
许鹏鹃
Li Jing;Feng Yuning;Liu Jitao;Xu Pengjuan(Shenyang University of Technology School Shenyang 110870 China;Shenyang Xinsong Robot Automation Co., Ltd. Shenyang 110006 China)
出处
《电气工程学报》
2018年第5期21-26,共6页
Journal of Electrical Engineering
基金
国家自然科学基金项目(51407120)
辽宁省教育厅一般项目(LGD2016029)
关键词
特高压
空间电荷
直流输电
绝缘子
闪络
离子流场
Extreme high voltage
space charge
dc power transmission
insulator
flashover
the ion flow field
