基于多节点的低压宽带电力线信道建模方法研究

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。...

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Published in电力系统保护与控制 Vol. 46; no. 3; pp. 18 - 25
Main Author 王毅;邓子乔;温慧安;侯兴哲;李松浓;孙洪亮;郑可
Format Journal Article
LanguageChinese
Published 重庆邮电大学通信与信息工程学院,重庆 400065 01.02.2018
国网重庆市电力公司电力科学研究院,重庆 401123
国网重庆市电力公司博士后科研工作站,重庆 401123%重庆邮电大学通信与信息工程学院,重庆,400065%国网重庆市电力公司电力科学研究院,重庆,401123
Subjects
二端口模型
信道相关性
多节点
电力线信道建模
电力线载波通信
二端口模型
power line channel modeling
channel correlation
power line communication
two-port model
电力线信道建模
信道相关性
multi-node
电力线载波通信
多节点
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Summary: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。
Bibliography: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 a
ISSN:1674-3415
DOI:10.7667/PSPC170100