Research on power frequency data transmission

被引：0
|
作者：
Ma, J [1 ]
Men, JY [1 ]
Pan, ZG [1 ]
Feng, QD [1 ]
机构：
[1] Harbin Inst Technol, Harbin 150001, Peoples R China
来源：
UPEC 2004: 39th International Universitities Power Engineering Conference, Vols 1-3, Conference Proceedings | 2005年
关键词：
distribution power net; zero-crossing modulation; notch filter; correlation detection;
D O I：
暂无
中图分类号：
TP18 [人工智能理论];
学科分类号：
081104 ; 0812 ; 0835 ; 1405 ;
摘要：
Signal of Power-Line Carrier (PLC) belongs to range of intermediate frequency. Deep signal attenuation, and standing wave limit data transmission of PLC only on the secondary side of distribution transformer. Power Frequency Data Transmission (PFDT) adopts the method of voltage zero-crossing modulation. Signal frequency is under 600Hz. Signal transmission characteristic can be analyzed with theory of symmetrical components. The notch filter can eliminate the influence from 50 Hz fundamental wave with its harmonic waves. After that, correlation detection effectively restrains the electrical noise. Field application indicates signal of PFDT has the capability to transmit over distribution transform for 40 kilometers.
引用
收藏
页码：15 / 25
页数：11
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