摘要
经济建设的快速发展,用电负荷的大幅度上升,促使电网建设速度不断加快,输电线电压等级不断提高,输电线下工频电场研究已经成为研究热点。本文根据悬链线方程,建立输电线物理模型。将输电线下方的工频电场近似为准静态场,采用模拟电荷法,基于复数计算方法,建立考虑弧垂的输电线路下方三维电场的计算模型,计算输电线下方电场强度值并分析其分布特性,计算结果表明,输电线下方的电场强度主要由垂直方向的电场强度决定。
The rapid development of economic construction and the sharp rise in electricity load prompt acceleration power grid construction,the transmission line voltage grade constantly improve,the power frequency electric field of power line has become a hot research topic. Based on catenary equation,transmission line model is established. The transmission line under the power frequency electric field approximation static field and using the emulation charge method,based on the complex calculation method to establish the power frequency electric field calculation model consideration sag of transmission lines. Computing the electric field intensity under the transmission line analyzes the distribution characteristics,the results show that the electric field intensity under the transmission line is mainly decided by the vertical direction of the electric field intensity.
出处
《科技通报》
2018年第2期77-82,共6页
Bulletin of Science and Technology
基金
河南省高校青年骨干教师资助计划(2014GGJS-167)
河南省软科学研究项目(2014SJGLX083)
关键词
输电线路
三维计算模型
工频电场
模拟电荷法
复数计算方法
transmission line
3D calculation model
power frequency electric field
emulation charge method
complex calculation method
