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arXiv 2202.03056eess.SYcs.SY
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电网动态模型中连锁故障的控制

Control of cascading failures in dynamical models of power grids

Mattia Frasca, Lucia Valentina Gambuzza

摘要:

在本文中,我们介绍了一种分布式控制策略,以防止动态诱发的连锁故障在电网中。我们使用复杂网络和非线性动力学对电网进行建模,以提供对其上发生的机电现象的粗粒度描述(特别是,我们使用耦合摆动方程),并将我们的分析限制在线路故障的级联中,即,由于电力流超过线路最大容量而引起的故障。我们制定了一个分布式控制协议依赖于相同的拓扑结构的物理层,并将其应用到几个电网模型,包括一个小尺寸的说明性的例子与五个节点,意大利的高压(380千伏)电网,和IEEE 118总线系统。我们的研究结果表明,该方法是能够防止级联故障,无论是控制网络的每个节点或它们的一个合适的子集。

英文摘要:

In this paper, we introduce a distributed control strategy to prevent dynamically-induced cascading failures in power grids. We model power grids using complex networks and nonlinear dynamics to provide a coarse-grained description of the electro-mechanical phenomena taking place on them (in particular, we use coupled swing equations) and restrict our analysis to cascades of line failures, i.e., failures due to power flows exceeding the maximum capacity of a line. We formulate a distributed control protocol relying on the same topology of the physical layer and apply it to several power grid models, including a small-size illustrative example with five nodes, the Italian high-voltage (380kV) power grid, and the IEEE 118-bus system. Our results indicate that the approach is capable of preventing cascading failures, either controlling each node of the network or a suitable subset of them.

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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