电力线载波通信中电网结构参数对信道容量的影响

发布时间：2019-06-22 12:07

【摘要】：提出了一种基于传输线理论的信道容量简化算法,在高带宽利用率条件下将信道容量解耦成几个独立的部分,分别用于研究传输距离、单根分支线对信道容量的影响及分支线之间的耦合效果。通过对无分支结构的电力线信道容量分析,提出了信道容量的简化算法及其适用条件。将分支线对信道容量的影响,分解成了对分支线长度及所接负载影响的研究,通过对部分典型负载特征的分析,讨论信道容量对负载的敏感性。利用统计方法研究了分支之间的耦合效应,当电力网中分支相距较远时,该耦合效果可以忽略不计,则信道容量可以看作与传输距离和分支线数量呈线性关系。仿真结果表明,该简化算法与传统计算方法具有较好的一致性,可用于分析不同网络结构对电力线传输性能的影响和信道容量的快速估计。
[Abstract]:In this paper, a simplified channel capacity algorithm based on transmission line theory is proposed. Under the condition of high bandwidth utilization, the channel capacity is decoupling into several independent parts, which are used to study the influence of transmission distance, single branch line on channel capacity and the coupling effect between branch lines. Based on the analysis of power line channel capacity without branch structure, a simplified algorithm of channel capacity and its applicable conditions are proposed. The influence of branch line on channel capacity is decomposed into the study of branch line length and load. Through the analysis of some typical load characteristics, the sensitivity of channel capacity to load is discussed. The coupling effect between branches is studied by statistical method. When the branches are far apart in the power network, the coupling effect can be ignored, then the channel capacity can be regarded as a linear relationship with the transmission distance and the number of branch lines. The simulation results show that the simplified algorithm is in good agreement with the traditional calculation method and can be used to analyze the influence of different network structures on power line transmission performance and the fast estimation of channel capacity.
【作者单位】：电力设备电气绝缘国家重点实验室(西安交通大学);
【基金】：高等学校博士学科点专项科研基金资助项目(20130201120008)~~
【分类号】：TN913.6

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