基于中压宽带载波技术的配电自动化通信系统分析  

Analysis of Distribution Automation Communication System Based on Medium Voltage Broadband Carrier Technology

作　　者：徐凡 印轩铭 XU Fan;YIN Xuanming(State Grid Jiangsu Power Co.,Ltd.,Zhenjiang Power Supply Branch,Nanjing 210000,China)

机构地区：[1]国网江苏省电力有限公司镇江供电分公司,江苏南京210000

出　　处：《通信电源技术》2023年第22期209-211,共3页Telecom Power Technology

摘　　要：由于技术层面的限制,配电通信系统存在时延长和抗干扰能力差等问题,而中压宽带载波技术的出现能够有效解决这一问题。通过构建由骨干层、接入层组成的配电通信平台,将其与助战系统对接,同时借助双导体线搭建中压电力线模型,使用中压宽带载波技术调节被传符号周期。利用将子载波正交的方式将部分末端信号转移到前端,形成循环前缀(Cyclic Prefix,CP)控制平均延时。借助窄频道子载波切割有效频谱,传输调节正交子载频,得到调节子信号,从而提高通信抗干扰性能,降低通信时延。In the past,due to the limitation of technology,the distribution communication system had problems such as time delay and poor anti-interference ability.However,the emergence of medium-voltage broadband carrier technology can effectively solve this problem.By constructing a distribution communication platform composed of backbone layer and access layer,and connecting it with the assistant warfare system,the medium voltage power line model is built with the help of double conductor lines,and the medium voltage broadband carrier technology is used to adjust the transmitted symbol period.Part of the terminal signals are transferred to the front end by orthogonal subcarrier,and a Cyclic Prefix(CP)is formed to control the average delay.With the help of narrow-channel subcarriers,the effective spectrum is cut,and the orthogonal subcarrier frequency is transmitted and adjusted to obtain the adjusted sub-signal,thus improving the anti-interference performance of communication and reducing the communication delay.

关 键 词：中压宽带载波技术 配电自动化 通信系统 子载波正交 

分 类 号：TM76[电气工程—电力系统及自动化]