中压电力线信道特性的测量及分析

电力线通信作为通信的一种可选方案有自己的独特优势。而利用中压电力线进行通信又有着广泛的应用范围和前景,其中中压电力线通道的特性对于通信的实现起着至关重要的作用。本文对位于市区的一条典型居民小区的中压10KV配电站的线路进行了现场测量,在10KHz-35MHz范围内对中压电力线信道的噪声、阻抗特性以及传输衰减进行了系统的测试和分析研究,并且运用MATLAB对得到得数据进行分析。从而得出了一些有价值的结论,讨论了信道特性对宽带中压电力线通信的影响及对策。

Measurement and research of the channel characteristics for the middle voltage power line

Power line communication is one of the method of communication which has its special advantage. The middle voltage power line communication has the abroad range and foreground . The characteristics of channel is very important and linchpin in middle voltage power line communications. In order to assess the transmission characteristics of the medium power line , this paper presents an example in Beijing dweller which distribution line voltage is 10KV . We test and research the noise and impedance char- acter and transmission attenuation in the frequency rage of 100KHz - 38 MHz . With the help of the sofeware of Matlab ,We ana- lyze the data and conclude a few of important conclusion , and discuss the channel characteristics which affect the middle voltage power line communication and the countermeasure which make better use of the channel characteristics for communicate.