Calculation of the ground hybrid electric field of ±800kV EHV DC and 750kV UHV AC parallel transmission lines

2017 3rd International Conference on Energy, Environment and Materials Science

能源学;生态环境科学;材料科学

Yang, Zhaoguang^1 ; Wen, Dingjun^1 ; Lichao, Gao^1 ; Yanyan, Bao^1 ; Bodong, Chen^1

State Grid Gansu Electric Power Research Institute, Lanzhou

730050, China^1

关键词: Control values;    Dc transmission;    Difference algorithms;    Double-loop;    Height above ground;    Parallel transmission lines;    Time domain;    Weighted method;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/94/1/012019/pdf
DOI  :  10.1088/1755-1315/94/1/012019

来源: IOP

【 摘 要 】

Based on the method of time-domain upwind difference algorithm, the ground hybrid electric field is calculated. The typical tower is selected from the 800kV Hami- Zhengzhou DC transmission project and the 750kV Tianshui-Baoji double-loop transmission line project. In the paper, the minimum height above ground is determined when the individual AC and DC lines meet the electric field limits, respectively. Then the article analyzes the AC and DC parallel spacing and the width of the corridor, using the weighted method to determine the control values of hybrid electric field.