基于COFDM技术高压输电线高速数字载波通信的研究  

Study on high-speed digital carrier wave communication on transmission linebased on COFDM technology

作　　者：杨宇[1] 张承学[1] 周强[1] 王贞白[1] 余红丽 

机构地区：[1]武汉大学电气工程学院,湖北武汉430072 [2]南瑞集团南京中德保护控制系统公司,江苏南京210003

出　　处：《中国电力》2004年第6期82-85,共4页Electric Power

摘　　要：传统的单边带电力线载波机存在频谱利用率低、抗干扰能力弱、传输速率低的缺陷,已越来越不能满足电力通信的需要。而基于编码正交频分复用(COFDM)调制技术的载波机可有效弥补传统载波机的不足,实现高速数据传输。文中介绍国内电力载波通信现状、COFDM的原理和实现方法,并通过仿真证明其可行性。There are such defects as low utilization factor of frequency spectrum , low anti-jamming ability and low transmitting velocity existing in the traditional single sideband carrier wave transmitter for transmission line communication . So it increasingly can not meet the demands of power system communication . However , the transmitter based on COFDM can make up the insufficiencies of the traditional transmitter effectively and realize high-speed data transmitting. This paper introduces the present situation of domestic power carrier wave communication . It also presents the principle and realization method of COFDM , and proves its feasibility through simulation.

关 键 词：电力系统 电力线载波通信 CFDM 高压输电线 数字载波通信 载波机 

分 类 号：TM73[电气工程—电力系统及自动化] TN913.6[电子电信—通信与信息系统]