摘要
采用三维有限元方法对±800kV特高压直流输电线路绝缘子串进行电场计算,比较不同外径、不同管径、不同安装位置的均压环对绝缘子串的电压分布和电场分布特性的影响,给出均压环合理结构尺寸和安装位置。然后通过球隙法测量±800kV特高压直流输电工程绝缘子串的电压分布,试验结果与有限元计算结果一致。该文的研究成果对指导±800kV特高压直流输电工程均压环的优化配置具有重要意义。
The three-dimensional finite element method is used to calculate the electric field of insulator strings for ±800 kV UHV DC transmission lines. After the comparison of electric field distribution and voltage distribution with different ring diameter, tube diameter and shielding depth, the dimension and position of grading ring is recommended. The ball-gap method is used to measure the voltage distribution of insulator strings for ±800 kV UHV DC transmission lines. Test results are consistent with calculation results. Findings of this paper are important for the grading ring configuration of ±800kV UHV DC transmission lines.
出处
《中国电机工程学报》
EI
CSCD
北大核心
2009年第22期100-105,共6页
Proceedings of the CSEE
关键词
电场
有限元
均压环
绝缘子串
优化
特高压输电线路
electric field
finite element method
grading ring
insulator strings
optimization
UHV transmission lines
