中国电机工程学报Issue(33)：152-159,8.
改进三维上流元法计算特高压直流线路离子流场
Improved 3-D Upwind FEM for Solving Ionized Field of HVDC Transmission Lines
摘要
Abstract
The ionized field of the high-voltage direct current (HVDC) transmission line is a 3-D Electromagnetic field when considering the influence of the lines sag, towers, insulators and buildings under the transmission line. Simplifying the problem by solving a 2-D ionized field would lead to a large error of the physical quantities around the object of interest. In this paper, improved 3-D upwind finite element method (upwind FEM) was achieved based on the existing theory. An adaptive iterative controlling factor was introduced to guarantee the rapid convergence of the solving procedure. A new method to find the upwind element was used to improve the computational efficiency. The ionized field of a 3-D coaxial cylindrical electrode was computed to testify the validity and efficiency of the method. The ionized field around the room model under the DC test line was calculated, and compared with the measurement results, and the calculation method was well validated. The electric field on the surface of the human body model which was placed on the corridor boundary under the ultra high-voltage direct current (UHVDC) transmission line was calculated, and the result demonstrates that the electric field is enhanced significantly compared with the situation in the electrostatic field. This application indicates that the 3-D large-scale ionized field can be handled using the improved 3-D upwind FEM effectively.关键词
三维大规模离子流场/改进三维上流元法/自适应迭代控制因子/人体/房屋模型Key words
3-D large-scale ionized field/improved 3-D upwind FEM/adaptive iterative controlling factor/human body/room model分类
信息技术与安全科学引用本文复制引用
黄国栋,阮江军,杜志叶,余世峰,廖才波,金硕,王国利..改进三维上流元法计算特高压直流线路离子流场[J].中国电机工程学报,2013,(33):152-159,8.基金项目
国家重点基础研究发展计划(973计划)(2011CB209404)。Project Supported by National Basic Research Program (973 Program)(2011CB209404) （973计划）
