| 引用本文: | 王毅,邓子乔,温慧安,等.基于多节点的低压宽带电力线信道建模方法研究[J].电力系统保护与控制,2018,46(3):18-25. |
| WANG Yi,DENG Ziqiao,WEN Huian,et al.Study on multi-node broadband power line channel modeling[J].Power System Protection and Control,2018,46(3):18-25 |
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| 基于多节点的低压宽带电力线信道建模方法研究 |
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王毅1,2,3,邓子乔1,温慧安1,侯兴哲2,李松浓2,孙洪亮2,郑 可2
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(1.重庆邮电大学通信与信息工程学院，重庆 400065;2.国网重庆市电力公司电力科学研究院，重庆 401123; 3.国网重庆市电力公司博士后科研工作站，重庆 401123)
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| 摘要: |
| 随着宽带载波通信在用电信息采集系统中的规模运用，如何搭建实验室数字化综合测试环境，是亟需解决的问题。目前的点对点测试理论依据来源于传统的点对点电力线信道建模方法。电力线载波通信是工作在多级中继路由下，电力线载波通信技术链路级与系统级性能测试需要构造多个节点之间的信道衰落模型。在二端口模型基础上，提出了多节点的宽带电力线信道建模方法。以分支节点为中心对网络进行划分，简化公式描述，并结合典型T型网络分析不同信道相关性产生机制。通过实测信道响应与理论仿真结果进行对比，证明该方法能够准确描述多节点电力线信道以及信道间相关特性，为未来新型高速宽带电力线载波通信技术和系统级测试方法提供理论支撑。 |
| 关键词: 电力线载波通信 电力线信道建模 多节点 信道相关性 二端口模型 |
| DOI：10.7667/PSPC170100 |
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| 基金项目:中国博士后科学基金资助项目(2015T80961);重庆市自然科学基金(cstc2016jcyjA0214) |
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| Study on multi-node broadband power line channel modeling |
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WANG Yi1,2,3,DENG Ziqiao1,WEN Huian1,HOU Xingzhe2,LI Songnong2,SUN Hongliang2,ZHENG Ke2
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(1. College of Communication and Information Engineering, Chongqing University of Posts and Telecommunications, Chongqing 400065, China;2. State Grid Chongqing Electric Power Research Institute, Chongqing 401123, China;3. Postdoctoral Workstation of the Chongqing Electric Power Corporation, Chongqing 401123, China)
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| Abstract: |
| With the wide application of the broadband power line communication technology in AMI system, the most urgent need is to set up a digitization integrated test environment for the carrier communication. The existent testing method is mainly derived from the conditional point-to-point power line channel model. Due to the multi-stage relay routing mechanism in carrier communication, the multi-node channel model is proposed for the link-level and system-level performance testing. Based on the two-port network theory, the multi-node broadband power line channel modelling approach is presented. With this method, the system model is simplified through the sub-network centered by branch node and the mechanism of the correlation between different channels in the low voltage distribution network is analyzed under the classical T-shape network. Through comparing real-measured channel response with theoretical simulation result, it verifies that the proposed method can accurately describe multi-node power line channels and channel correlation, which can offer theoretical support for the system-level testing approach and novel high speed broadband power line communication in the future. This work is supported by China Postdoctoral Science Foundation (No. 2015T80961) and Natural Science Foundation of Chongqing (No. cstc2016jcyjA0214). |
| Key words: power line communication power line channel modeling multi-node channel correlation two-port model |
