特高压直流输电线路分裂导线表面电位梯度的计算分析  

Calculation and Analysis of Surface Potential Gradient along UHVDC Transmission Lines with Bundled Conductors

作　　者：张庆辉[1] 齐亚红[1] 

机构地区：[1]河南工业大学信息科学与工程学院,河南郑州450001

出　　处：《清远职业技术学院学报》2013年第6期23-25,共3页Journal of Qingyuan Polytechnic

摘　　要：基于有限元方法,计算特高压直流输电线路分裂导线表面电位梯度,并与Markt-Mengele法、逐步镜像法、模拟电荷法的计算做出比较。利用matlab编写计算程序,分析计算结果,并且讨论了线路各参数对导线表面最大电位梯度的影响,分析得出结论:导线分裂数、分裂子导线半径、极间距离对导线表面最大电场强度的影响比较明显,而导线对地高度的影响较小。This paper calculates surface potential gradient along UHVDC Transmission Lines with bundled conductors based on the finite element method, and make a comparison with the calculations by Markt-Mengele method, the method of mirror image, simulation charge method. According to the calculation program compiled by matlab, this paper analyses the calculation results, and discuses the influence of various parameters for maximum potential gradient on the conductor surface. The results show that the impact of the number of bundled conductors, the radius of bundled conductor, and polar distance to maximum surface potential gradient are biggest obvious, while the impact of height of line to ground is smaller.

关 键 词：特高压直流 分裂导线 电位梯度 有限元法 

分 类 号：TM721[电气工程—电力系统及自动化]