Abstract In future smart transmission grids, there are distributed applications that will benefit from the deployment of Internet Protocol (IP) multicast technology for communication. Sharing of Routable-Sample Values (R-SV) and Routable-GOOSE among the digital substations for wide-area monitoring, protection, and control (WAMPAC) applications will be needed. Using multicast for distribution of R-SVs is resource-efficient and offers a simpler configuration with only the interested substations needing reconfiguration. However, the demands for such concurrent delivery of R-SV data will put constraints on the underlying supporting networking infrastructure. For example, it must be ensured that the paths taken to route data traffic are within the bounds of delay to achieve the aims of the WAMPAC application. In this paper, we look at the problem of network topology augmentation through link additions. We present a heuristic algorithm that finds a set of links to be added to a network topology such that the multicast distribution tree for a multicast configuration is bounded by latency, which is set as the hop-count threshold. Our results show that by adding a few new links to the network topology, the delay incurred by the multicast traffic from sources to destinations can be reduced.

中文翻译：

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智能输电网多播通信架构的网络设计算法

摘要 在未来的智能输电网中，分布式应用将受益于部署互联网协议（IP）组播技术进行通信。需要在用于广域监测、保护和控制 (WAMPAC) 应用的数字变电站之间共享可路由样本值 (R-SV) 和可路由-GOOSE。使用多播来分配 R-SV 可以节省资源，并提供更简单的配置，只有感兴趣的变电站需要重新配置。然而，对 R-SV 数据的这种并发交付的需求将对底层支持网络基础设施造成限制。例如，必须确保路由数据流量所采用的路径在延迟范围内，以实现 WAMPAC 应用程序的目标。在本文中，我们通过链路添加来研究网络拓扑增强的问题。我们提出了一种启发式算法，该算法可以找到一组要添加到网络拓扑结构的链路，以便多播配置的多播分发树受延迟限制，延迟被设置为跳数阈值。我们的结果表明，通过向网络拓扑添加一些新链路，可以减少从源到目的地的多播流量所引起的延迟。