基于Simulink的配电网载波信道传输特性研究

Research on Transmission Characteristics of Distribution Line Carrier Channel Based on Simulink

为了在配电网上实现高速、可靠的通信,研究其信道的传输特性十分必要.通过对电力线路及变压器的阻抗特性研究,确定了电力线路的参数及变压器的等效模型,最后借助Simulink的PSB模块库,建立了配电网的等效信道模型.通过对信道中不同处的电压的分布规律仿真分析,得出结论:在某一频段,恰当的耦合方式及最佳的阻抗匹配可以实现信号高速、可靠地传输.

In order to achieve high- speed, reliable communication, research on channel transmission characteristics is necessary. The paper gives the parameters of the power line and transformer equivalent model by a series of experiments on impedance characteristics of power lines and transformers, and finally with the Simulink PSB module library, provides a equivalent channel model of distribution network. Through Simulation and analysis of the voltage distribution on transmission, the results show that In a certain frequency range, an appropriate coupling and impedance matching we can achieve the best and reliable transmission.