Finding a Zipf distribution and cascading propagation metric in utility line outage data

Finding a Zipf distribution and cascading propagation metric in utility line outage data
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在公用事业线路停电数据中查找 Zipf 分布和级联传播度量

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发表时间:
2018
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通讯作者:
I. Dobson
I. Dobson
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作者:
I. Dobson

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观测到的输电线路停电数据被分组为连续几代事件。级联中的世代数的经验分布遵循Zipf分布,这意味着随着级联的进展,传播增加。Zipf分布的斜率给出了系统事件传播斜率指数(SEPSI)。这个新的度量量化级联传播,如预期的那样变化,并确定小,中,大级联的概率。
Observed transmission line outage data is grouped into successive generations of events. The empirical distribution of the number of generations in the cascades follows a Zipf distribution that implies the increasing propagation as cascades progress. The slope of the Zipf distribution gives a System Event Propagation Slope Index (SEPSI). This new metric quantifies the cascade propagation, varies as expected, and determines the probabilities of small, medium, and large cascades.