电力系统及其自动化学报2016，Vol.28Issue(12)：57-63,7.DOI:10.3969/j.issn.1003-8930.2016.12.010
考虑风速和导线高度影响的高压直流输电线下离子流场计算
Calculation of Ionized Field under HVDC Transmission Lines Considering the Influence of Wind Speed and Wire Height
摘要
Abstract
In order to predict the electromagnetic environment under high voltage direct current(HVDC)transmission lines,the distribution of ionized field under different conditions is calculated. With Kaptzov hypothesis,the potential near artificial boundary is calculated by charge simulation method,and the electric field generated by space charge is obtained using Poisson equation. Moreover,a new updating formula of space charge density is proposed,and the equa⁃tion of ion current density is solved by upstream finite element method. The validity of the proposed algorithm is verified by calculating the coaxial cylindrical electrode electric field,and its reliability is verified by solving the model of mono⁃polar HVDC transmission lines considering wind speed. Finally,the ionized field of bipolar HVDC transmission lines under the influence of different heights and wind speeds is calculated,showing that both height and wind have a great influence on the maximum ground level profiles of field and ion current density,which are prone to shift due to wind.关键词
高压直流/离子流场/导线高度/风速/上流有限元法Key words
high voltage direct current(HVDC)/ionized field/wire height/wind speed/upstream finite element meth-od分类
信息技术与安全科学引用本文复制引用
许松枝,汪沨,李敏,邓晓,谢望君,陈晓林..考虑风速和导线高度影响的高压直流输电线下离子流场计算[J].电力系统及其自动化学报,2016,28(12):57-63,7.基金项目
教育部新世纪优秀人才支持计划资助项目（NCET-11-0130）；长沙理工大学近地空间电磁环境监测与建模湖南省普通高校重点实验室开放基金资助项目 （）
