环网供电系统电力线载波通信信道特性分析  

Analysis of Communication Channel Characteristics of Power Line Carrier in Ring Network Power Supply System

作　　者：熊大凯 李勰 张选萍 乐健[2] XIONG Dakai;LI Xie;ZHANG Xuanping;LE Jian(Yifeng Power Supply Branch of Jiangxi Electric Power Co.,Ltd.,Yichun 336300,China;School of Electrical Engineering and Automation,Wuhan University,Wuhan 430072,China)

机构地区：[1]国网江西省电力有限公司宜丰县供电分公司,江西宜春336300 [2]武汉大学电气与自动化学院,湖北武汉430072

出　　处：《电工技术》2023年第1期197-201,共5页Electric Engineering

摘　　要：为提高供电的可靠性,现代中压配电系统中将越来越多地出现环网拓扑结构。首先依据信息节点的信道建模方法,建立了具有环网的某实际配电网络的信道传输模型。然后在此基础上,对其信道传输特性进行了分析,利用仿真计算重点分析了各种因素对电力线载波通信模型的信道传输特性的影响规律。最后通过实验验证了所得结论的正确性和有效性。所使用的研究方法与总结出的相关规律对含有环网结构的配电系统的电力线载波通信调制具有重要意义。In order to improve the reliability of power supply,more and more ring network topologies will appear in modern medium voltage distribution systems.Firstly,according to the channel modeling method of information node,the channel transmission model of a practical distribution network with ring network is established.On this basis,the channel transmission characteristics are analyzed.The influence of various factors on the channel transmission characteristics of the power line carrier communication model is analyzed by simulation.Finally,the correctness and validity of the conclusions are verified by experiments.The research methods used and the relevant laws summarized are of great significance for the power line carrier communication modulation of power line distribution systems with ring network structure.

关 键 词：电力线载波通信 环网拓扑 信道传输特性 频率衰减 

分 类 号：TM71[电气工程—电力系统及自动化]