移动基站共址高压输电铁塔的电磁场分布特性分析与预测  

Analysis and prediction of electromagnetic field distribution characteristics for mobile base station co-located with high voltage transmission tower

作　　者：周涛[1] 彭勇 施佩克 张瑞卿 杨志超 郑中原[4] 于金山[4] ZHOU Tao;PENG Yong;SHI Peike;ZHANG Ruiqing;YANG Zhichao;ZHENG Zhongyuan;YU Jinshan(School of Electronics and Information Engineering,Beijing Jiaotong University,Beijing 100044,China;China Electric Power Research Institute,Beijing 100192,China;State Key Laboratory of Power Grid Environmental Protection,China Electric Power Research Institute,Wuhan 430074,China;State Grid Tianjin Electric Power Company Electric Power Research Institute,Tianjin 300392,China)

机构地区：[1]北京交通大学电子信息工程学院,北京100044 [2]中国电力科学研究院有限公司,北京100192 [3]电网环境保护国家重点实验室,武汉430074 [4]国网天津市电力公司电力科学研究院,天津300392

出　　处：《电波科学学报》2021年第4期637-644,共8页Chinese Journal of Radio Science

基　　金：国家电网有限公司总部科技项目(项目名称:移动基站共址高压输电铁塔的安全运检关键技术研究,项目号:5200-201955069A-0-0-00)。

摘　　要：为了明确移动基站架设在高压输电铁塔上对电力运检人员的电磁辐射影响,对移动基站共址高压输电铁塔的电磁场分布特性进行了研究.在4G基站共址220 kV高压输电铁塔的真实场景下开展了电磁场强度测量,获得了铁塔周围地面区域和铁塔内部垂直方向上的场强测量数据;基于射线追踪仿真,在实测验证的基础上,全面分析了移动基站共址高压输电铁塔的电磁场分布特性,并根据实测和仿真结果提出了强中弱场区划分方法;将径向基函数(radial basis function,RBF)神经网络应用于场强预测,建立了电磁场分布特性预测模型.结果表明所提出的模型能够较为准确地实现移动基站共址高压输电铁塔场景下的场强预测,可为移动基站共址高压输电铁塔的安全运检工作提供参考.In order to understand the impact of electromagnetic radiation on power inspectors who work on a high voltage transmission tower equipped with a mobile base station,we investigate the electromagnetic field distribution characteristics of the mobile base station co-located with high voltage transmission tower.Electromagnetic field intensity measurements in the realistic scenario of 4G base station co-located with 220 kV high-voltage transmission tower are performed,and field intensity measurement data in the ground area around the tower and in the vertical direction inside the tower are acquired.Based on the ray tracing simulation and depending on experimental verification,the electromagnetic field distribution characteristics of mobile base station co-located with high-voltage transmission tower are comprehensively analyzed.According to the measurement and simulation results,a method for partitioning strong,middle and weak field intensity areas is proposed.Finally,the radial basis function neural network is applied to the field strength prediction,and a prediction model for electromagnetic field distribution characteristics is established.These results can provide a reference for the safe operation and inspection in the scenario of mobile base station co-located with high voltage transmission tower.

关 键 词：高压输电铁塔 电磁场分布特性 射线追踪 神经网络 安全运检 径向基函数(RBF) 

分 类 号：TN929.5[电子电信—通信与信息系统]