两类中压电力线信道比较及研究  

Compare and research of the channel characteristics of two kinds of middle voltage power line

作　　者：邢志民[1] 侯思祖[1] 

机构地区：[1]华北电力大学电子与通信工程学院,河北保定071003

出　　处：《电力系统通信》2005年第12期32-35,46,共5页Telecommunications for Electric Power System

基　　金：国家自然基金资助项目宽带电力线通信技术研究(60372035)

摘　　要：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,中压电力线通道的特性对于通信的实现起到至关重要的作用。文章对位于北京某居民小区的地埋中压10 kV配电网和保定市某县的架空10 kV电力线作为测试线路进行测试,从而得出中压电力线的信道特性。在10 kHz^35 MHz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比较分析研究,并且运用Matlab对得到的数据进行分析,得出了两类中压电力线信道特性,讨论了信道特性对宽带中压电力线通信的影响及对策。The power line communication is one of the communication methods, which has its particular advantages. The application of middle voltage power line communication has abroad range and foreground. The channel characteristics are very important technical parameters in middle voltage power line communications. In order to assess the transmission characteristics of the medium power line, this paper presents tow examples. One is in a Beijing dweller, where the underground distribution line voltage is 10 kV. Another is an aerial cable, which is in Baoding, the voltage is also 10 kV. We tested and studied the noise, impedance character and transmission attenuation in the frequency range of 10 kHz - 35 MHz. By using Matlab and analyzing the data, the channel characters of two different kinds of the middle voltage power lines were presented in this paper, the bandwidth effect caused by the channel characteristics and the countermeasures of settling this effect . are discussed.

关 键 词：中压电力线 噪声 传输衰减 信道特性 架空电缆 地埋电缆 

分 类 号：TN915.853[电子电信—通信与信息系统]