Accurate topology estimation is crucial for effectively operating modern distribution networks. Line outages in a distribution network change the network topology by disconnecting some parts of the network from the main grid. In this paper, an outage detection (or topology estimation) algorithm for radial distribution networks is presented. The algorithm utilizes noisy power flow measurements collected from a subset of lines in the network, and statistical information characterizing errors in forecasting load demands. Additionally, a sensor placement scheme is presented. The sensor placement provides critical sensing for the outage detection algorithm so that any number of possible outages in the network can be detected. The performance of the proposed outage detection algorithm using the proposed sensor placement is demonstrated through several numerical results on the IEEE 123-node test feeder.

中文翻译：

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使用有限数量的潮流测量进行配电网停电检测

准确的拓扑估计对于有效运行现代配电网络至关重要。配电网络中的线路中断通过断开网络的某些部分与主电网的连接来更改网络拓扑。本文提出了一种径向分布网络的故障检测（或拓扑估计）算法。该算法利用从网络中一部分线路收集的噪声功率测量值以及表征预测负荷需求中的误差的统计信息。另外，提出了一种传感器放置方案。传感器的位置为中断检测算法提供了关键的传感，因此可以检测到网络中任何数量的可能中断。