文中提出并实现了一种基于点对点通信、按功能组织的分层分布双总线通信方案。通过引入镜像节点、总线负荷均衡等技术,使该方案可灵活高效地实现分布自动化功能和信息局部整合,并消除了分层通信对系统通信可靠性和速度的影响,同时,定量分析了该通信方案的可靠性。此通信方案已在部分变电站得到实际应用,并取得了理想效果。 This paper proposes and implements a layered bus communication scheme based on point-to-point communication and organized by function. By introducing such technologies as mirror node and bus load balancing, this scheme can flexibly and efficiently realize the distribution automation function and local integration of information, and eliminate the impact of hierarchical communication on system communication reliability and speed. At the same time, this communication is quantitatively analyzed Program reliability. This communication scheme has been put into practical application in some substations and achieved satisfactory results.