5G技术在配电网电流差动保护业务中的应用

Application of 5G technology in current differential protection of distribution network

随着社会对电能需求的持续增长,智能配电网得到了快速发展,配网在体系架构、技术基础等方面发生了很大变化,导致传统配网保护及馈线自动化无法很好地满足坚强电网的自愈要求,需要做好相应的电流差动保护工作。考虑到传统电流差动保护方式存在稳定性差、实时性差以及成本高的缺陷,提出将5G技术应用到配电网电流差动保护中,依照配电网本身的拓扑变化,实现对差动保护配置的动态调整,以尽可能降低配网运行维护和改造成本。

With the continuous growth of social demand for electric energy, intelligent distribution network has been developed rapidly, and great changes have taken place in the system architecture and technical basis of distribution network, resulting in the traditional distribution network protection and feeder automation can not well meet the self-healing requirements of strong power grid, and the corresponding current differential protection work needs to be done well. Considering the shortcomings of traditional current differential protection, such as poor stability, poor real-time performance and high cost, 5G technology is applied to the current differential protection of distribution network. According to the topology change of distribution network, the dynamic adjustment of differential protection configuration is realized, so as to reduce the operation maintenance and transformation cost of distribution network as much as possible.