智能电网层次化广域保护系统的关键技术研究

Key technologies of hierarchical wide-area protection system for smart grid

高效、可靠的通信方法是促进广域保护通信服务和电力安全的根本,目前,现有的广域保护系统通信在实时性和可靠性方面研究仍然不足。针对这一问题,基于现有的广域保护研究,分析了智能电网层次化广域保护系统的通信网络建设问题,把智能变电站作为节点划分广域保护系统。智能电网保护控制以广域测量的实时数据作为研究对象,并仿真分析智能电网层次化保护体系的网络性能,研究工作为我国智能电网的发展提供了参考和借鉴。

Efficient and reliable communication methods are fundamental to promote wide-area protection of communication services and power security.At present,the research on real-time and reliability of existing wide-area protection system communication is still insufficient.Aiming at this problem,based on the existing wide-area protection research,this paper studies the communication network construction of hierarchical wide-area protection system of smart grid,and divides the wide-area protection system into smart substations as nodes.The protection control of smart grid takes the real-time data of wide-area measurement as the research object,and simulates and analyzes the network performance of the hierarchical protection system of smart grid.The research work provides reference for the development of smart grid in China.