基于标签信息流的变电站电缆走向识别方法  

Identification method of cable orientation in substations based on label information flow

作　　者：张淞珲 马超俊 徐盈盈 李红斌[2] 张荣浩 李志民 ZHANG Songhui;MA Chaojun;XU Yingying;LI Hongbin;ZHANG Ronghao;LI Zhimin(Marketing Service Center(Metrology Center),State Grid Shandong Electric Power Company,Jinan 250001,China.;School of Electrical and Electronic Engineering,Huazhong University of Science and Technology,Wuhan 430074,China.;Liaocheng Power Supply Company,State Grid Shandong Electric Power Company,Liaocheng 252000,Shandong,China.;Dezhou Power Supply Company,State Grid Shandong Electric Power Company,Dezhou 253000,Shandong,China)

机构地区：[1]国网山东省电力公司营销服务中心(计量中心),济南250001 [2]华中科技大学电气与电子工程学院,武汉430074 [3]国网山东省电力公司聊城供电公司,山东聊城252000 [4]国网山东省电力公司德州供电公司,山东德州253000

出　　处：《电测与仪表》2024年第6期167-172,180,共7页Electrical Measurement & Instrumentation

基　　金：国家自然科学基金智能电网联合基金(U1866201)。

摘　　要：电缆走向识别是电缆检修和施工中的重要一环,其识别的准确性直接影响人身和设备的安全。文章提出了一种基于标签信息流的变电站电缆走向识别方法,依据预定区域内变电站数量确定各变电站的标签码,将调制后包含变电站信息的标签信号通过各变电站接地网注入到出线电缆的屏蔽层上进行传输,在待测电缆侧检测信号后,将各变电站注入的标签信号与检测信号作相关运算,相关结果峰值最高的变电站即为待测电缆首尾所连接的变电站,从而在无需知晓电缆首尾连接归属的情况下实现电缆的走向识别。实验测试结果验证了基于标签信息流的变电站电缆走向识别方法的准确性和高效性。Cable orientation recognition is an important part of cable maintenance and construction.The accuracy of identification directly affects the safety of personnel and equipment.This paper proposes an identification method of cable orientation in substations based on label information flow.The label code of each substation is determined according to the number of substations in a predetermined area,and the modulated label signal containing substation information is injected into the shielding layer of the outgoing cable through the grounding network of each substation.After the signal is detected on the cable under test,the tag signal injected by each substation is correlated with the detection signal.The substation with the highest correlation result is the substation connected to the end of the cable under test,so the orientation of the cable can be identified without knowing the attribution of the beginning and end of the cable.The experimental test results verify the accuracy and efficiency of the identification method of the cable direction of the substation based on the label information flow.

关 键 词：电缆在线识别 注入法 CDMA WALSH码 

分 类 号：TM757[电气工程—电力系统及自动化]