摘要
工频电力通信是一种以配电网为介质的新型通信技术。配电网中的 5 0Hz基波及 5次电流谐波影响上行电流信号的检测。文中提出 ,背景电流抵消后让信号通过基于自适应滤波技术的陷波器 ,可去除背景中残留的基波及谐波电流的影响。实际应用说明 ,在此基础上再采用匹配滤波 ,可以很好地检测上行电流信号 。
Power frequency communication is a new type of data transmission system with the medium of distribution power network. Detection of the inbound signal is easily influenced by 50 Hz fundamental wave and its 5th harmonic currents. The counteracted current by going through the notch filter based on adaptive filter technique is proposed to eliminate the residual fundamental wave and its harmonic wave. And the practice proved that when the matched filter is further adopted, power frequency communication system can be adjusted to the power network environment in the high energy consuming area with the good performance of detecting the inbound signal.
出处
《电力系统自动化》
EI
CSCD
北大核心
2003年第20期35-39,共5页
Automation of Electric Power Systems
基金
黑龙江省科委高技术专项基金资助项目
哈尔滨市种子基金资助项目~~
关键词
工频电力通信
自适应陷波
匹配滤波
信号检测
Adaptive filtering
Communication systems
Electric filters
Electric power transmission networks
Signal detection
Signal interference
Transfer functions
