中压电力线的通信耦合与误码率分析  

Analysis of OFDM Communication Coupling and Bit Error Rate of Medium voltage power line

作　　者：任关友 李英娜[1] 王昕 李川[1] 梅东晖 RenGuanyoul,;LiYingna;WangXln;LIChuan;MelDonghui(Automation in Kunming University of Science and Technology,Kunming 650000,Yunnan,China;Electric Power Research Institute,Yunnan Power Grid Limited Liability Corporation,Kunming 650000,Yunnan,China)

机构地区：[1]昆明理工大学信息工程与自动化学院,昆明650000 [2]云南电网有限责任公司电力科学研究院,昆明650000

出　　处：《云南电力技术》2018年第4期116-121,共6页Yunnan Electric Power

摘　　要：随着智能电网的高速发展,通信系统对传输效率、自动化及可靠性的要求越来越高,传统单载波系统和多载波系统已经不能满足。中压电力线宽带载波通信技术是解决配网自动化瓶颈问题的最佳通信方式,其高效、可靠的耦合技术满足通信需求。本文结合现场实际情况的测量和分析,通过对中压配电网信道特性及OFDM技术分析了10 kV中压电力线载波通信模型及其耦合特性。通过建立通信耦合系统模型分析了不同信噪比及误码率的关系曲线,实验结果表明采用OFDM调制技术能有效克服电力线信道传输的频率选择衰落特性,并增强系统的抗多径干扰的性能。With the reliability requireme rapid development of smart grid, communication system on the transmission efficiency, automation and nts are increasingly high, the traditional single carrier system and multi-carrier system has been unable to meet the communication needs. Medium-voltage power line broadband carrier communication technology is the best way to solve the bottleneck problem of distribution network automation. Efficient and reliable coupling technology is the basis of high-speed broadband transmission of power line communication. Based on the measurement and analysis of the actual situation, Analysis of 10kV medium voltage power line carrier communication model and its coupling characteristics by The channel characteristics of the medium voltage distribution network and OFDM. Analysis of the different signal-to-noise ratio and bit error rate curve by By establishing a communication model of the coupling system. The experimental results show- that using OFDM modulation technology can effectively overcome the transmission of power line channel frequency selective fading characteristics and enhance the performance of anti multipath interference system.

关 键 词：信号与信息处理 电力线通信 正交频分复用 OFDM 

分 类 号：TM74[电气工程—电力系统及自动化]