arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2007.06967physics.soc-phcs.SYeess.SYmath.PR
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电网无标度停电规模的出现

Emergence of scale-free blackout sizes in power grids

Tommaso Nesti, Fiona Sloothaak, Bert Zwart

摘要:

我们的模型电网的图与重尾汇,这代表了城市的需求,并研究级联故障,这样的图。我们的分析链接到城市规模的无标度性质停电规模,对比以往的研究表明,这种性质是由自组织临界性。我们的研究结果是基于一个新的数学框架相结合的物理功率流与罕见事件分析的重尾分布,并验证使用各种合成网络和德国输电网。

英文摘要:

We model power grids as graphs with heavy-tailed sinks, which represent demand from cities, and study cascading failures on such graphs. Our analysis links the scale-free nature of blackout sizes to the scale-free nature of city sizes, contrasting previous studies suggesting that this nature is governed by self-organized criticality. Our results are based on a new mathematical framework combining the physics of power flow with rare event analysis for heavy-tailed distributions, and are validated using various synthetic networks and the German transmission grid.

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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