【摘要】 采样测量值和跳闸命令在以太网上的实时、可靠传输是基于IEC 61850 标准的过程总线数据通信的重要内容。该文深入分析了这两类信息所共同遵循的发布者/订阅者通信结构,构建了应用于变压器差动保护的过程总线通信实验平台,揭示了采样测量值和跳闸命令传输的实现机制,提出了保证过程总线通信服务质量的方案。实验验证了此方案的有效性和实用性。该研究结果对于新一代的变电站自动化系统过程总线通信设计具有参考意义。更多还原

【Abstract】 The real-time and reliable transmission of the sampled values and trip signals via the ETHERNET is the most important part of the process bus communication based on IEC 61850. The Publisher/subscriber communication architecture, which is the base of the transmission of the two types of message, is analyzed in depth. On the basis of the experimental platform of the process bus communication applied to the transnission of the transformer differential protection, the mechanism of the sampled values and trip signals is revealed, and a practical scheme is proposed to ensure the Quality of the Service of the communication. The researching result is valuable for process bus communication design of the new substation automation system.更多还原