网络化电能质量监测系统中的配电线载波通信

Distribution Line Carrier Communication in Networked Power Quality Monitoring System

系统构建的高成本是制约网络化电能质量监测系统推广应用的主要原因,基于配电线载波通信的组网方案是解决问题的有效策略。为论证该方案的可行性,首先对网络化电能质量监测系统中各监测终端需上传数据的内容、通信速率需求进行了详细的分析。然后,在深入研究其信道衰减特性的基础上,对基于正交频分复用的配电线载波通信系统的通信速率、通信质量性能进行了分析和研究。最后,提出了以中继跳数最小化为目标的基于改进Dijkstra算法的配电线载波通信网络路由优化方法。该研究工作为网络化电能质量监测系统中应用配电线载波通信组网方案提供了相关的理论依据和可行性分析结果。

High construction cost blocks extensive application of networked power quality monitoring system （NPQMS）, and the network scheme based on distribution line carrier communication （DLCC） is an effective strategy for problem-solving. For demonstrating the feasibility, content of the data needed to be uploaded and requirement of communication rate for each power quality monitor are analyzed detailedly. With an in-depth study on attenuation characteristics of DLCC channel, the properties of DLCC system based orthogonal frequency division multiplexing （OFDM） are analyzed and researched, such as communication rate and communication quality. Aiming at minimization of relay hops , an improved Dijkstra algorithm is proposed, which is used to optimize routing of the DLCC communication network. This research work will provide related theoretical basis and feasibility analysis result of the network scheme based on DLCC in NPQMS system.