Simulation Analysis for Induced Voltage and Induced Current in the Steel Frame Construction Under UHV AC Transmission Lines

被引:0
|
作者
Wang R. [1 ]
Xu J. [1 ]
Li Z. [2 ]
Liu X. [2 ]
Ma F. [2 ]
Hu A. [1 ]
机构
[1] College of Mechanical and Electronic Engineering, Shandong Agricultural University, Tai'an
[2] Shandong Electric Power Engineering Consulting Institute Co., Ltd., Ji'nan
来源
Gaodianya Jishu/High Voltage Engineering | 2021年 / 47卷 / 02期
关键词
Ansys; Electromagnetically induced voltage; Induced current density; Steel frame; Ultra-high voltage;
D O I
10.13336/j.1003-6520.hve.20200507030
中图分类号
学科分类号
摘要
According to the operation status of the 1 000 kV Yuheng-Weifang UHV AC transmission lines currently completed and put into operation, steel frame structures such as greenhouses exist under the lines, and heavy inductive currents will be generated in the steel frame structures. To ensure the safety of agricultural workers, a steel frame greenhouse was taken as an example, and the calculation model of UHV AC double-circuit transmission lines with the infinite element was established by the Ansys simulation software. Moreover, the induced voltage and induced current generated on the steel frame were calculated by simulation. According to simulation results, by using finite element-infinite element method for modeling and simulation, the simulation efficiency of the computer is improved obviously. The induced voltage and induced current density on the steel frame structure under the lines are greatly affected by the current level of the lines and the distance between the steel frame and the line axis. The influence of erection height on induced voltage and induced current varies with the distance between steel frame and line axis. After factors such as line erection cost and transmission efficiency are taken into consideration, it is recommended to design the line 70 meters away from the building. © 2021, High Voltage Engineering Editorial Department of CEPRI. All right reserved.
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页码:724 / 731
页数:7
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