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arXiv 1012.0815physics.soc-phcond-mat.stat-mech
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电网连锁故障的统计分类

Statistical Classification of Cascading Failures in Power Grids

René Pfitzner, Konstantin Turitsyn, Michael Chertkov

摘要:

介绍了一种新的输电网停电微观模型。该模型考虑了电网对负载波动的自动响应,当最佳潮流调整和甩负荷控制不可用时,负载波动发生在分钟的尺度上。我们描述了极端事件,由负载波动,导致负载,发电机和线路的级联故障。我们的模型是准静态的因果关系,离散时间和连续分辨率的个人故障。该模型,在其最简单的实现的基础上的有向电流描述的潮流问题,测试三个标准的IEEE系统组成的30,39和118总线。我们的统计分析表明,一个简单的分类级联和孤岛阶段的平均数量之间的比率删除负载,发电机和链接。该分析还表明了对线路容量变化的敏感性。未来的研究挑战,在建模和控制的连锁停电在现实世界的电力网络进行了讨论。

英文摘要:

We introduce a new microscopic model of the outages in transmission power grids. This model accounts for the automatic response of the grid to load fluctuations that take place on the scale of minutes, when the optimum power flow adjustments and load shedding controls are unavailable. We describe extreme events, initiated by load fluctuations, which cause cascading failures of loads, generators and lines. Our model is quasi-static in the causal, discrete time and sequential resolution of individual failures. The model, in its simplest realization based on the Directed Current description of the power flow problem, is tested on three standard IEEE systems consisting of 30, 39 and 118 buses. Our statistical analysis suggests a straightforward classification of cascading and islanding phases in terms of the ratios between average number of removed loads, generators and links. The analysis also demonstrates sensitivity to variations in line capacities. Future research challenges in modeling and control of cascading outages over real-world power networks are discussed.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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