中压电力线信道特性的测量及分析一. 引言

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中压电力线信道特性的测量及分析一. 引言

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中压电力线信道特性的测量及分析侯思祖邢志民程晓荣康恩婷华北电力大学保定 071003 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，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。关键字：中压电力线；噪声；阻抗；传输衰减；信道特性 Measurement and research of the channel characteristics for the middle voltage power line Sizu Hou Zhimin Xing xiaorong cheng Enting Kang North China Electric Power University Baoding, 071003 Abstract : 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 character and transmission attenuation in the frequency rage of 100KHz – 38 MHz . With the help of the sofeware of Matlab ,We analyze 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. Keyword ：middle voltage power line ; noise ; transmission attenuation; characteristics of channel 一. 引言电力线通信(PLC, power line communication)是利用高压电力线（在电力载波领域通常指 35kV 及以上电压等级）、中压电力线（指 10kV 电压等级）或低压配电线

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