低压电力线载波通信电器噪声特性研究  

Characteristic Study on Carrier Communication Device Noise of Low Voltage Power Lines

作　　者：郭军昌[1] 粟时平[1] 邓奇峰[1] 傅传宗[1] 孔祥斌[2] 

机构地区：[1]长沙理工大学电气与信息工程学院,湖南长沙410004 [2]江西省电力公司抚州供电公司,江西抚州344000

出　　处：《电气开关》2012年第2期28-31,共4页Electric Switchgear

基　　金：电力系统安全运行与控制湖南省重点实验室开放基金资助

摘　　要：各种电器产生的噪声对电力线通信系统影响很大。目前对电力线信道中电器噪声的测量与分析方面的研究还不是很充分。基于大量的实测结果,利用MATLAB进行分析,讨论了电器开启、运行、关闭时的噪声特性;同一电器不同距离下噪声随距离的衰减情况;几种电器共同工作时的噪声叠加特性等等,对电力线通信中电器噪声影响进行了分析。同时提出了几种抑制措施,以减小电器噪声对电力线通信的影响。Noises produced by various electric devices have great effect on the communication system of the power lines. At present, measurement and analysis of the device noises to power line communication are not full enough. Based on a lot of measuring results, the paper uses MATLAB to analyze and discusses the noise characteristics during the device making operating and breaking for the same device attenuation with different distances and several kinds of devices＇ noise superposition characteristics ofr simultaneous work. The paper analyzes the effect of the device noises in the power line communication and proposes several control measures to reduce the effect of the device noises on the power line communication.

关 键 词：低压电力线通信 电器噪声 噪声衰减 噪声叠加 

分 类 号：TM71[电气工程—电力系统及自动化]