摘要
作为智能电网输电环节必不可少的一部分,输电线路在线监测系统是实现输电线路状态实时管控、提高运行管理精益化水平的重要技术手段。系统通过部署在输电线路上的终端监测设备来采集信息,但是信息回传时通信方式的选取需结合线路情况提出最佳的解决方案。对比分析目前输电线路在线监测系统的通信方式,利用OFDM和LDPC编码的特点,提出基于LDPC编码的OFDM无线专网通信系统,选取AWGN和瑞利衰弱这两个典型情景仿真验证系统的可靠性,并在山西进行实际应用。该研究为输电网的建设提供了重要的理论依据。
As an essential part of the power transmission of the smart grid,the online monitoring system of power transmission line is an important technical means to realize the real-time control of power transmission line status and improve the levelof operation management.The system gathers information by means of the terminal monitoring device deployed on the powertransmission line.However,when transmitting information back,the optimal solution about the communication mode selectionneeds to be proposed in combination with line status.In this paper,the communication modes of the current online monitoringsystem of power transmission line are analyzed and contrasted.The OFDM wireless special network communication system basedon LDPC coding is proposed by utilizing the characteristics of OFDM and LDPC coding.AWGN and Rayleigh fading as two typical scenes are chosen to simulate and verify the system reliability.The system was applied in Shanxi.The research in this paperprovides an important theoretical basis for the construction of the power transmission network.
作者
仝杰
刘艳丽
杨德龙
雷煜卿
TONG Jie;LIU Yanli;YANG Delong;LEI Yuqing(Academy of Information and Communications,China Electric Power Research Institute,Beijing 100192,China;School of Electrical and Electronic Engineering,North China Electric Power University,Beijing 102206,China)
出处
《现代电子技术》
北大核心
2017年第17期162-166,共5页
Modern Electronics Technique
基金
国家电网总部科技项目:输电线路在线监测质量提升关键技术研究及应用(GC71-15-040)
