电气技术  2017, Vol. 18 Issue (8): 27-31    DOI:
研究与开发 |
室内低压电力线的信道特性研究
贾鹏飞, 华伟, 崔双, 李智
四川大学电子信息学院,成都 610065
Research on Channel Characteristics of Indoor Low-voltage Power Line
Jia Pengfei, Hua Wei, Cui Shuang, Li Zhi
College of Electronic and Information Engineering, Sichuan University, Chengdu 610065
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摘要 本文利用传输线理论,分析了信号在电力线上的传输过程,引出了多枝节多反射的电力线信道模型,并对其进行仿真。在1~100MHz频段内,对实验室内的低压电力线信道的特性进行了实测,与仿真结果进行了对比。本文讨论了接入220V交流电力网络对所测电力线信道的影响,发现了电力线主干长度、枝节数目、枝节长度和交流电力网络等均会对电力线信道的传输特性和阻抗特性产生影响,电力线的衰减具有频率选择性。
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关键词 电力线 建模 传输特性 衰减    
Abstract:The process of signal transmission within the indoor power line channelis analyzedwith transmission line theory and a multi-branch, multi-reflection channel model is established.The low-voltage power line channel characteristics have been measured in the laboratory and also been simulated with the model studied in the frequency range of 1~100MHz. With the comparison of the measured results with that of the simulation, whether the access of 220V AC power network will affect the power line channel characteristics has been discussed. At last, it is found that the length of the main power line, branch number, branch length, and 220V AC power network affect the transmission parameters and impedance characteristics of the indoor power line. Meanwhile, the attenuation of power line channel have the feature of frequency selectivity.
Key wordspower line    modeling    transmission characteristics    attenuation   
     出版日期: 2017-08-18
作者简介: 贾鹏飞(1989-),男,陕西咸阳市人,硕士,主要从事电子信息、射频电路设计工作。
引用本文:   
贾鹏飞, 华伟, 崔双, 李智. 室内低压电力线的信道特性研究[J]. 电气技术, 2017, 18(8): 27-31. Jia Pengfei, Hua Wei, Cui Shuang, Li Zhi. Research on Channel Characteristics of Indoor Low-voltage Power Line. Electrical Engineering, 2017, 18(8): 27-31.
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https://dqjs.cesmedia.cn/CN/Y2017/V18/I8/27