助航灯光系统电力载波通信特性仿真研究

为了实现助航灯光系统电力载波通信可靠性传输,对灯光系统载波通信特性进行了仿真研究。研究的关键是建立接近实际电力载波系统的模型。针对信号实际传输过程中噪声干扰问题,首先设计了能滤除工频干扰信号的耦合电路;然后在此基础上,根据传输线理论和电力线路中实际的电气参数,建立灯光系统电力载波的仿真模型;最后对模型进行仿真。在去除噪声干扰的基础上,仿真结果表明灯光系统载波通信受容抗的影响最大,阻抗和感抗的改变对载波通信影响不大。

Simulation research for characteristics of power-line carrier communication on airfield lighting system

In order to achieve the reliability of power line carrier communication on Airfield lighting system.This paper does a simulation research for the characteristics of Airfield lighting system.The key of the research is to establish a model that closes to the actual PLC system.For the problem of the noise in the actual transmission,this paper designs a coupled-circuit that can filter the frequency interference signals at first.Then on the base,the simulation model of power line carrier of lighting system is established according to the transmission line theory and the actual parameters in the power line.At last,the model is simulated.On the basis of noise removal,the simulation results show that the change of the capacitance has a great impact on the carrier communication,and the change of the resistance and inductance have little effect.