电力系统保护与控制2018，Vol.46Issue(4)：99-106,8.DOI:10.7667/PSPC170182
低压电力线载波通信信道衰减特性测量与分析
Measurement and research on attenuation characteristics of low voltage power line communication channel
摘要
Abstract
To study the attenuation characteristics of signal transmission in low voltage distribution network is very important to optimize the stability and reliability of the physical layer of signal transmission in the local communication system. This paper measures signal transmission attenuation influenced by cross-sectional area, length and network structure of low voltage power line, calculates and analyzes the amplitude frequency attenuation characteristics change with the basic properties of power line within the range of wide band accurately. The little distance and normal T type network structure models are proposed to research the frequency selective fading caused by multipath transmission of power line communication channels. Simulation and measurement statistics results of signal transmission attenuation characteristics influenced by basic characteristics are showed by diagrams intuitively. Those results are very useful for understanding and grasping the essential reasons of low voltage power line transmission characteristics, which provides an effective analysis method for the prediction of signal transmission characteristics in complex distribution network.关键词
低压配电网/幅频衰减特性/电力线信道/T型网络模型Key words
low-voltage power distribution network/amplitude frequency attenuation characteristics/power line communication channel/T type network structure models引用本文复制引用
李松浓,胡晓锐,郑可,孙洪亮,侯兴哲,王毅..低压电力线载波通信信道衰减特性测量与分析[J].电力系统保护与控制,2018,46(4):99-106,8.基金项目
国家电网公司科技项目"用电信息采集系统及设备性能监测和诊断优化技术研究" （）
中国博士后科学基金资助项目(2015T80961) （2015T80961）
重庆市自然科学基金资助(cstc2016 jcyjA0214)This work is supported by Science and Technology Project of State Grid Corporation of China "Research on Power Utilization Information Acquisition System and Monitoring & Diagnosis Optimization Techniques for Equipment Performance", China Postdoctoral Science Foundation (No. 2015T80961), and Natural Science Foundation of Chongqing (No. cstc2016jcyjA0214). （cstc2016 jcyjA0214）
