摘要
为研究雷击作用下通信基站铁塔的精确电感参数,基于电磁场有限元原理,使用实际通信基站铁塔参数建立了仿真模型。根据铁塔部件连接特点,考虑不同规格和位置,对角钢塔外自感和部件间互感进行了有限元仿真分析,并对仿真结果进行了实验测试验证。得到不同规格、不同位置角钢部件的单位长度自感参数和互感参数,以及不同内部结构情况下的一段铁塔自感参数,并通过仿真进一步分析得出铁塔电感参数变化规律。有限元法与实验结果的一致性验证了有限元法的正确性。相关结论为后续通信基站铁塔的分流特性分析和耐雷水平分析提供电气参数依据,为精细化通信基站防雷规格制定提供理论基础、实验数据,指导产品设计。
In order to study the precise inductance parameters of the mobile communication base station tower under the influence of lightning, a simulation model was established based on the electromagnetic field finite element principle using the parameters of the actual communication base station tower. According to the connection characteristics of tower components, considering different specifications and locations, a finite element simulation analysis was performed on the self-inductance of the tower and the mutual inductance between components, and the simulation results were verified by the experimental results. The per-unit-length self-inductance and mutual inductance parameters of the angle steel were calculated in terms of different parameters. Besides, the self-inductance parameters of a section of the iron tower under different internal structure conditions were obtained. The simulation was further analyzed to obtain the changing trends of the tower’s inductance parameters. The consistency of the finite element method and experimental results verifies the correctness of the finite element method. The related conclusions provide the underlying electrical parameter basis for the current distribution characteristics analysis and lightning resistance level analysis of the communication base station tower, and provide the theoretical basis and experimental data for the refinement of the lightning protection specifications of the communication base station, and guide the product design.
作者
赵晓雨
孙伟
姚学玲
陈景亮
李天权
ZHAO Xiaoyu;SUN Wei;YAO Xueling;CHEN Jingliang;LI Tianquan(School of Mechanical and Electrical Engineering,Xi’an University of Architecture and Technology,Xi'an 710055,China;State Key Laboratory of Electrical Insulation and Power Equipment,Xi’an Jiaotong University,Xi’an 710049,China)
出处
《电瓷避雷器》
CAS
北大核心
2021年第5期16-24,共9页
Insulators and Surge Arresters
基金
国家自然科学基金(编号:51577151)。
关键词
基站铁塔
有限元法
电感效应
ANSYS
base station tower
finite element method
inductance effect
ANSYS