中压电力线信道特性的测量与研究

Measurement and Research of Channel Characteristics for Medium Voltage Power Line

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.为此,对位于北京市区的一条典型居民小区的中压10 kV配电站的线路进行了现场测量,在10～35 kHz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对得到的数据进行分析.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.

as one of the communication options, power line communication has its special advantages. The medium voltage power line communication has a broad application and prospect. The characteristic of channel in medium voltage power line is critical to communication. In order to assess the transmission characteristics of medium voltage power line ,this paper presents an example taken from a specific community in Beijing with distribution voltage of 10 kV. The noise,impedance and transmission attenuation in the frequency of 10-35 kHz were tested. And with the aid of software MATLAB,some data was analyzed and valuable results was obtained. The influence of channel characteristics on medium voltage power line communication is discussed and countermeasures are proposed.