基于光纤通信技术的输电线路故障实时巡检方法  

Real-Time Inspection Method of Transmission Line Fault Based on Optical Fiber Communication Technology

作　　者：唐瑞焱 方良斌 TANG Ruiyan;FANG Liangbin(Liuzhou Bureau of China Southern Power Grid Co.,Ltd.,Ultra High Voltage Transmission Company,Liuzhou 545000,China)

机构地区：[1]中国南方电网有限责任公司超高压输电公司柳州局,广西柳州545000

出　　处：《通信电源技术》2023年第23期201-203,共3页Telecom Power Technology

摘　　要：由于缺乏对输电线路数据的拟合分析,直接巡检输电线路故障时的巡检结果与实际情况之间的误差较大。为解决该问题,提出基于光纤通信技术的输电线路故障实时巡检方法。从输电线路样本整体数据中随机抽取一组样本数据,借助最小方差估计拟合初始的输电线路模型,并设置偏差阈值判断模型的适用性,利用光纤通信技术,拟合输电线路数据,构建输电线路模型。在输电线路故障实时巡检阶段,以理想状态(即非故障状态)下输电线路执行电力传输任务时的允许参数范围为基础,分析拟合后的实际输电线路状态数据,并根据其与允许参数范围之间的关系,确定故障状态。测试结果显示,所提方法的巡检误差稳定在0.05 mm内。Due to the lack of fitting analysis of transmission line data,there is a big error between the inspection results and the actual situation when the transmission line fault is directly inspected.In order to solve this problem,a real-time inspection method of transmission line faults based on optical fiber communication technology is proposed.A group of sample data is randomly extracted from the whole data of transmission line samples,and the initial transmission line model is fitted with the help of minimum variance estimation,and the deviation threshold is set to judge the applicability of the model.The transmission line model is constructed by fitting the transmission line data with optical fiber communication technology.In the real-time inspection stage of transmission line fault,based on the allowable parameter range of transmission line when performing power transmission task in the ideal state(that is,non-fault state),the fitted actual transmission line state data is analyzed,and the fault state is determined according to the relationship between it and the allowable parameter range.The test results show that the inspection error of the proposed method is stable within 0.05 mm.

关 键 词：光纤通信技术 输电线路故障 实时巡检 输电线路模型 数据拟合 

分 类 号：TM75[电气工程—电力系统及自动化]