电力无线专网5G关键技术的应用及前景分析

Application and Prospect Analysis of 5G Key Technologies in Power Wireless Private Network

为推进我国电力无线专网建设、满足配电网生产电力业务的控制要求,无线专网应从电力需求的角度出发,结合配电网建设的供电规划,因地制宜地选择通信方式。采用时分长期演进(TDD-LTE)标准中的多天线技术、图样分割多址(PDMA)技术和5G异构网络融合技术,使用电力专有无线频率工作。以应用于电力系统中的信息通信为切入点,介绍了无线专网的技术特点及5G技术在电力无线专网中的应用。分析了网络切片技术、软件定义网络和差动保护在配网系统中的实施和应用现状,并探讨了5G技术在未来电网中的应用前景。

To promote the construction of China s electric power wireless private network and to meet the control requirements of power services for distribution network production,the wireless private network should start from the perspective of power demand,combine with the power supply planning of distribution network construction,and choose the communication mode according to local conditions.The multi-antenna technology,pattern division multiple access(PDMA)technology and 5G heterogeneous network convergence technology in time division duplex-long term evolution(TDD-LTE)standard are adopted to work with power proprietary wireless frequency.The technical characteristics of wireless private networks and the application of 5G technology in power wireless private networks are introduced with the entry point of information communication applied in power systems.The implementation and application status of network slicing technology,software-defined network and differential protection in distribution systems are analyzed,and the application prospects of 5G technology in future power grids are discussed.