Fast Calculation of the Impedence Using Tensor-Based FEM for Evaluating Very Fast Transient Overvoltage in GIS

被引：0
|
作者：
Zhang, Li [1 ]
Zhuo, Ran [2 ,3 ]
Pan, Shenggui [4 ]
Luo, Yan [2 ,3 ]
Fu, Kelin [5 ]
Zhang, Junjie [1 ]
Wang, Yu [1 ]
机构：
[1] Elect Power Res Inst Guizhou Power Grid Co Ltd, Guiyang, Peoples R China
[2] Elect Power Res Inst China Southern Power Grid, Guangzhou, Peoples R China
[3] CSG, United Lab Adv Elect Mat & Equipment Support Tech, Guangzhou, Peoples R China
[4] Liupanshui Power Supply Bur Guizhou Power Grid Co, Liupanshui, Peoples R China
[5] Zunyi Power Supply Bur Guizhou Power Grid Co Ltd, Zunyi, Peoples R China
来源：
PROCEEDINGS OF 2023 INTERNATIONAL CONFERENCE ON WIRELESS POWER TRANSFER, VOL 3, ICWPT 2023 | 2024年 / 1160卷
关键词：
Impedance; GIS; Accelerated computing;
D O I：
10.1007/978-981-97-0865-9_56
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
To solve the VFTO in GIS, it is necessary to perform the earth and GIS interconnection system, and then calculate the impedance to earth. The GIS interconnection system is rarely considered in current studies. To solve the problem of large computation time and meshes, a semi-analytical method is used to decompose the region into two sub-regions and calculate the sub-regions by finite element method and analytical solution method respectively, while introducing tensor calculation in the finite element part greatly reduces the computation time. The results are calculated in case of single-phase and three-phase, meanwhile, the frequency domain results for the overall system were analyzed. The approach proposed in this paper can be used to solve the problem of GIS impedance to ground, and has a large improvement in computational performance.
引用
收藏
页码：518 / 526
页数：9
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