新一代电力线载波通信关键技术探讨

配用电网智能化需要灵活方便、经济实用的通信方式支撑，电力线载波通信被认为是最佳的通信方式之一。文章简要分析了配电网电力线载波通信技术的现状与发展趋势，结合智能电网配用电业务的通信需求，论述了新一代电力线载波技术的主要特征与技术挑战，阐述了包括跨频带电力线载波通道基础特性、物理层、MAC层、协同分集、频谱认知、跨频带耦合等关键技术和问题，提出了面向智能电网应用的新一代电力线载波通信技术。最后，探讨了新一代智能PLC技术的应用前景。

Discussions on Key Technologies of New Generation Power Line Carrier Communication

In order to support smart distribution grid, more flexible and economical communication systems are needed, and the power line carrier communication is considered as one of the most suitable technologies for this purpose. This paper first introduces the situations and the development trend of the power line carrier communication, and then proposes a new generation power line carrier communication technology for the smart grid applications. Combining with the communication requirements of the smart grid distribution business, main characteristics and technical charges of the new generation power line carrier technology, as well as the basic features, the physical layer and the MAC layer of the cross-band power line carrier channels and key technologies including cooperative diversity, spectrum cognitive and cross-band couple, are described. At last, this paper discusses application perspectives of the technology.