Highly Stable Upwind FEM for Solving Ionized Field of HVDC Transmission Line
Highly Stable Upwind FEM for Solving Ionized Field of HVDC Transmission Line
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DOI：
10.1109/tmag.2011.2174203
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发表时间：
2012-01
影响因子：
2.1
通讯作者：
Guodong Huang;J. Ruan;Z. Du;Changwei Zhao
中科院分区：
文献类型：
--
作者：
Guodong Huang;J. Ruan;Z. Du;Changwei Zhao
高压直流输电线路电晕放电产生的电离场对电磁环境影响很大。本文引入一种基于迎风有限元法的高度稳定的迭代算法来分析有风情况下高压直流输电线路的电离场。在导体表面引入卡普佐夫假设作为边界条件。 Takuma提出的迭代过程中加入了控制方法来保证迭代的收敛性，并经测试是有效的。分析了风对双极高压直流输电线路地面电场强度和离子流密度的影响，发现风对电离场有显着影响，在工程设计中必须考虑。
The ionized field produced by corona discharge from a high-voltage direct current (HVDC) transmission line has a great influence on the electromagnetic environment. In this paper, a highly stable iterative algorithm based on an upwind finite-element method is introduced to analyze the ionized field of HVDC transmission line in the presence of the wind. The Kaptzov's assumption is introduced on the conductor surface as a boundary condition. In the iterative procedure presented by Takuma, the controlling method is added to guarantee the convergence of the iteration, which has been tested to be effective. The impact of the wind on the ground-level electric-field intensity and ion current density of a bipolar HVDC transmission line is analyzed, and we find the wind has a significant influence on the ionized field which has to be considered in the engineering design.