规则接地网拓扑结构关键特征点识别与重建  

Identification and Reconstruction of Key Feature Points of Regular Grounding Grid Topology

作　　者：吉旺威 赵宏梅 林艺 郑服利 李国城 宋恒力 刘欢 JI Wangwei;ZHAO Hongmei;LIN Yi;ZHENG Fui;LI Guocheng;SONG Hengli;LIU Huan(Guangzhou Power Supply Bureau of Guangdong Power Grid Co.,Ltd.,Guangzhou 510410,China;School of Automation,China University of Geosciences,Wuhan 430074,China;Hubei Key Laboratory of Advanced Control and Intelligent Automation for Complex Systems,Wuhan 430074,China;Engineering Research Center of Intelligent Technology for Geo-Exploration,Ministry of Education,Wuhan 430074,China)

机构地区：[1]广东电网有限责任公司广州供电局,广东广州5104101 [2]中国地质大学(武汉)自动化学院,湖北武汉430074 [3]复杂系统先进控制与智能自动化湖北省重点实验室,湖北武汉430074 [4]地球探测智能化技术教育部工程研究中心,湖北武汉430074

出　　处：《智慧电力》2023年第12期80-86,共7页Smart Power

基　　金：国家自然科学基金面上资助项目(42274233)。

摘　　要：在接地网拓扑结构检测中,由于实测的接地网磁感应数据存在采样间隔不均匀和噪声影响等问题,从磁感应数据中人工识别接地网的位置并重建其拓扑结构比较困难。针对这一问题,首先使用双三次插值算法将离散的磁感应数据转换为均匀的数据,接着通过分析单根载流导体及交叉布置的载流导体在地表上的磁场分布情况搭建了载流导体的磁场分布模型,最后基于搭建的模型设计了针对地下载流导体布设位置的关键特征点识别算法,实现规则接地网网格拓扑结构的重建。设计了仿真实验和实际测试,结果表明该方法能较好地识别并重建规则接地网均匀网格结构。In the identification of grounding grid topology structure,it is difficult to manually identify the grounding grid location from the magnetic induction data due to the uneven sampling interval and the influence of noise in the measured magnetic induction data from the grounding grid.In order to solve this problem,the discrete magnetic induction data is first converted into uniform data using bicubic interpolation algorithm,and then the magnetic field distribution model of the current-carrying conductor is constructed by analyzing the magnetic field distribution of the single current-carrying conductor and the cross-arranged current-carrying conductor on the Earth’s surface.Finally,based on the model built in this paper,a key feature point identification algorithm for the location of grounding current-carrying conductor is designed to realize the reconstruction of the regular grounding grid topology.In addition,simulation experiments and practical testing are designed.The results show that the method can better identify and reconstruct the uniform grid structure of the regular grounding grids.

关 键 词：接地网 结构识别 数据插值 

分 类 号：TM930.9[电气工程—电力电子与电力传动]