电器噪声对低压电力线通信的干扰及其抑制  

Interference and suppressive method of electric apparatus′ noise on low voltage PLC system

作　　者：易斌[1] 钱逢安[2] 米红菊[1] 

机构地区：[1]重庆后勤工程学院电力教研室,四川重庆400041 [2]重庆后勤工程学院节能研究所,四川重庆400041

出　　处：《电力系统通信》2005年第7期15-16,19,共3页Telecommunications for Electric Power System

摘　　要：低压电力线作为数据通信的媒介时,其信道特性并不理想,特别是家用电器引起的大量噪声对于电力线通信系统的性能影响很大。因此了解电器噪声的规律,对于选择电力线通信调制手段、载波频率等方面都具有现实意义。文章通过对家用电器所产生的干扰与噪声的特性分析,总结了其对低压电力线载波通信的影响,提出了具体的抑制措施。同时指出了在低压电力线载波通信信道分析与编码、调制过程中,运维人员需要注意的一些问题。When low voltage powerline is used as a data communication media its channel characteristics is not so ideal, the noise which comes from electric apparatus in distribution network will influence the performance of powerline communication system seriously. It is important to study the electric apparatus′ noises characteristic, which can make low voltage PLC system to work better. The paper discusses the noise interferences caused by electric apparatus, summarizes the influence to low-voltage powerline communication system, and proposes the suppressive measure. Some factors to which the maintainers need to pay attention during the process of signal channel analysis, coding and modulation are stated briefly.

关 键 词：电力线通信 电器噪声 干扰 

分 类 号：TN915.853[电子电信—通信与信息系统]