首页 | 本学科首页   官方微博 | 高级检索  
     

电力线正交频分复用通信专用耦合电路的设计与实现
引用本文:Joseph Nguimbis,熊兰,程时杰,张有兵.电力线正交频分复用通信专用耦合电路的设计与实现[J].电力系统自动化,2003,27(21):58-62.
作者姓名:Joseph Nguimbis  熊兰  程时杰  张有兵
作者单位:华中科技大学电气与电子工程学院,湖北省武汉市,430074
基金项目:中华电力教育基金会许继奖教金资助项目
摘    要:正交频分复用(OFDM)用于低压电力线载波通信能够有效解决噪声、多径和频率选择性衰落等问题。然而,OFDM发送器要求信号在很宽的频带上线性地传输,普通的耦合电路无法满足要求。文中设计了一个能有效减小低压电力线的低阻抗影响的功率匹配和增益平衡电路,用来将信号耦合到电力线上,其传输频带为0.1MHz-30.0MHz。该设计的首要目的是实现网络信号的最大功率传输。在居民区和工业区进行了试验测量,文中说明了试验目的和试验结果。

关 键 词:电力线通信  正交频分复用  耦合电路  阻抗匹配电路  增益平衡  功率匹配
收稿时间:1/1/1900 12:00:00 AM
修稿时间:1/1/1900 12:00:00 AM

A COUPLING UNIT SPECIALLY DESIGNED FOR POWER LINE ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING (OFDM) COMMUNICATION AND ITS IMPLEMENTATION
Joseph Nguimbis.A COUPLING UNIT SPECIALLY DESIGNED FOR POWER LINE ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING (OFDM) COMMUNICATION AND ITS IMPLEMENTATION[J].Automation of Electric Power Systems,2003,27(21):58-62.
Authors:Joseph Nguimbis
Abstract:Orthogonal frequency division multiplexing (OFDM) is proposed as a new and efficient method for resolving such problems as noise, multi-path propagation and frequency selective fading in power line communication (PLC). However, OFDM transmitter requires a highly linear operating environment. Besides, the low signaling impedance of power line is another challenge. This paper examines the design of a power line matching and gain equalization unit capable of providing wide-band mitigation of the effects of low impedance loads on PLC at frequencies ranging from 0.1 MHz to 30 MHz. Maximization of the power transmitted from an upstream to downstream communication equipment is the main objective of the present work. Some experimental measurements have been performed in residential and industrial quarters. Motivations to conduct this experiment are given, some compromise is obtained and results are presented. This project is supported by XUJI Bounty of China Electricity Fund.
Keywords:power line communication (PLC)  orthogonal frequency division multiplexing (OFDM)  coupling uint impedance-matching unit  gain equalization  power matching
本文献已被 CNKI 维普 万方数据 等数据库收录!
点击此处可从《电力系统自动化》浏览原始摘要信息
点击此处可从《电力系统自动化》下载全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号