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首页> 外文期刊>International Journal of Electrical Power & Energy Systems >A study of correlated failures on the network reliability of power transmission systems
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A study of correlated failures on the network reliability of power transmission systems

机译：输电系统网络可靠性相关故障的研究

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This paper studies the performance evaluation of a power transmission system in terms of its network topology, where edges represent transmission lines and nodes represent subsidiary stations. The power transmission network is modeled as a stochastic-flow network (SFN) due to the possibility of failure, partial failure, and maintenance of edges (transmission lines). Furthermore, correlation poses a particular concern for such an SFN because the simultaneous failure of multiple components can dangerously degrade performance. We develop a method to measure the impact of correlated failures on network reliability, which is defined as the probability of demand satisfaction. Experimental results show that correlation may produce a significantly negative impact on network reliability, especially when there is a high level of network demand. Thus, the proposed approach captures the influence of correlation on network reliability and offers a method to quantify the utility of reducing correlation.
机译：本文从电力传输系统的网络拓扑角度研究了其性能评估，其中边缘代表传输线，节点代表子站。由于故障，部分故障和边缘（传输线）维护的可能性，电力传输网络被建模为随机流网络（SFN）。此外，相关性对这种SFN引起了特别的关注，因为多个组件的同时失效会严重降低性能。我们开发了一种方法来衡量相关故障对网络可靠性的影响，该方法定义为需求满足的概率。实验结果表明，相关性可能会对网络可靠性产生明显的负面影响，尤其是在网络需求水平较高时。因此，提出的方法捕​​获了相关性对网络可靠性的影响，并提供了一种量化减少相关性的效用的方法。

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