| 引用本文: | 黄银龙,乐健,王东旭,等.环网下电力线载波通信信道特性的影响因素分析[J].电力系统保护与控制,2013,41(17):135-139.[点击复制] |
| HUANG Yin-long,LE Jian,WANG Dong-xu,et al.Analysis of influence factors on power-line communication channel characteristics under ring topology[J].Power System Protection and Control,2013,41(17):135-139[点击复制] |
|
| 摘要: |
| 智能配电网除传统的树状拓扑结构外，还将出现环网、格状网等结构。建立具有这些特殊拓扑配电网的电力线信道模型并进行信道特性影响因素的分析是在智能配电网中应用电力线载波通信技术的必要前提和重要依据。首先提出了对不同网络拓扑具有通用性的基于信息节点的信道建模方法，在此基础上通过仿真分析了主干长度、分支长度、负载阻抗和分支个数等因素对环网拓扑下信道传输特性的影响规律，重点分析了这些影响因素对信号衰减的影响。通过实验验证了所得结果的正确性和有效性。所提出的分析方法和所得结论为设计智能配电网电力线载波通信的调制方法提供了必要的理论基础和技术手段。 |
| 关键词: 电力线载波通信 环网 信息节点 信道传输特性 频率衰减 |
| DOI：10.7667/j.issn.1674-3415.2013.17.021 |
|
| 基金项目:国家自然科学基金项目(51007065) |
|
| Analysis of influence factors on power-line communication channel characteristics under ring topology |
| HUANG Yin-long1,LE Jian1,WANG Dong-xu2,CAI Wei1,MAO Tao1,LIU Kai-pei1 |
| () |
| Abstract: |
| In the intelligent power distribution network, there are not only tree-topology but also ring-topology, mesh-topology and so on. To establish the power line channel models of the distribution networks with these special topologies and analyze the factors that influence the channel characteristics is the premise and the important basis for the application of the PLC in smart distribution network. This paper presents a universal channel modeling method based on information nodes which is suitable for different network topology. Based on this method, the influence laws of multiple factors on channel transmission characteristics under ring topology is analyzed through simulation, such as the lengths between transmitter and receiver, branched line lengths, branched load impedances and number of branches. The analysis of the influence on the signal attenuation is stressed. The correctness and general applicability of the proposed approach and the conclusions are verified through lab measurements. The proposed modeling method and the conclusions provide necessary theoretical basis and technical means for power-line communication modulation method. |
| Key words: power-line communication ring topology information nodes channel transmission characteristics frequency attenuation |
