|
|
|
| Calculation of Electric Field of Transmission Lines by the Finite Element Method with Discontinuous Mesh |
| Lin Yuyi1, Lin Yanhong2 |
1. Shenzhen Power Supply Bureau Co., Ltd, Shenzhen, Guangdong 518010;
2. State Grid Longyan Power Supply Company, Longyan, Fujian 364000 |
|
|
|
|
Abstract In this paper, the electric field is calculated by the finite element method. By calculation and analysis of the 500kV AC transmission lines model, this paper draws a conclusion that the electric field intensity is less than the national standard limit at 1.5m above the ground. In the calculation, the mesh generation with the freedom coupling method on interfaces is adopted to model the thin transmission lines and the large surrounding air region, and is appropriate for calculating electric field of transmission lines. This method is able to reduce the demand of element numbers and increase the calculation accuracy heavily.
|
|
Published: 19 April 2017
|
|
|
|
| Cite this article: |
|
Lin Yuyi,Lin Yanhong. Calculation of Electric Field of Transmission Lines by the Finite Element Method with Discontinuous Mesh[J]. Electrical Engineering, 2017, 18(4): 71-74.
|
|
|
|
| URL: |
|
http://dqjs.cesmedia.cn/EN/Y2017/V18/I4/71
|
[1] 俞集辉, 周超. 复杂地势上超高压输电线路的工频电场[J]. 高电压技术, 2006, 32(1): 18-20.
[2] 邹澎. 高压输电线下有建筑物时工频电场的数学模型[J]. 中国电力, 1997, 30(3): 13-15.
[3] 王晓燕, 赵建国, 邬雄, 等. 交流输电线路交叉跨越区域空间电场计算方法[J]. 高电压技术, 2011, 37(2): 411-416.
[4] 武坤, 司马文霞, 杨庆, 等. 分域迭代法计算特高压线路绝缘子电场分布[J]. 高电压技术, 2009, 35(6): 1279-1283.
[5] 甄永赞, 崔翔, 罗兆楠, 等. 直流输电线路三维合成电场计算的有限元方法[J]. 电工技术学报, 2011, 26(4): 153-160.
[6] 李永明, 范与舟, 徐禄文. 超高压输电线路铁塔附近地面工频电场仿真分析[J]. 电网技术, 2013, 37(3): 782-787.
[7] 1998 H J T. 500kV超高压送变电工程电磁辐射环境影响评价技术规范[S]. |
|
|
|
2017, Vol. 18 
