面向能源互联网多业务接入的 多通道通信系统

A Multi-Channel Communication System for Multi-Service Access for Energy Internet

随着能源互联网的不断发展,多种能源新兴业务(充电桩/站、源–网–荷–储、无人机巡检和新能源并网等)不断涌现。现有的能源互联网通信体系,业务侧和主站侧之间一般采用单一的通信架构进行信息传输,这种体制难以保证多种业务融合下仍具有较高通信质量和可靠性。针对这一问题,文章将无线多天线的空时分组编码技术(Space-Time Block Code,STBC)应用于能源互联网多通道异构通信系统中。业务侧数据通过STBC编码增加多通道的信息冗余;接收端采用多通道分集合并接收,提升能源互联网中的通信传输性能。仿真分析了采用STBC和不同分集合并方式下,典型异构多通道通信组网(光纤专网+无线专网,光纤专网+无线公网,无线公网+无线专网)的传输性能。通过分析可知,采用STBC技术和分集接收技术的多通道通信系统,可有效提高能源互联网通信质量和传输可靠性。

With the development of energy Internet,a variety of new services(e.g.,charging pile/station,source-grid-load-storage,unmanned-aerial-vehicle inspection and new energy grid connection,etc.)are emerging.In the existing energy Internet communication system,an infrastructure with single communication technique is generally deployed between the service side and the master station side for information exchange,which is difficult to maintain the high quality and reliability under the integration of multiple services.To address this challenge,this paper applies the space-time block code(STBC)technique proposed firstly for wireless multi-antenna to the multi-channel communication system of energy Internet.STBC is employed to increase multi-channel information redundancy in the service side and multi-channel diversity reception is adopted at the receiver to improve the transmission performance in the energy Internet.The performance of typical multi-channel communication networks(e.g.,optical fiber+wireless private network,optical fiber+wireless public network,wireless public network+wireless private network)with STBC and diversity combining techniques are simulated and analyzed.The analysis results show that the multi-channel communication system using space-time block coding and diversity receiving techniques can effectively improve the transmission quality and reliability of energy Internet.