论文标题
在动力网格的动态模型中控制级联故障
Control of cascading failures in dynamical models of power grids
论文作者
论文摘要
在本文中，我们引入了一种分布式控制策略，以防止动态引起的电网中的级联故障。我们使用复杂的网络和非线性动力学对功率网格进行建模，以提供对它们上面发生的电力现象的粗粒描述（特别是我们使用耦合的挥杆方程），并将我们的分析限制为线路故障的级联，即由于功率流而导致的故障，超过了线路的最大容量。我们制定了依靠物理层相同拓扑的分布式控制协议，并将其应用于多个电网模型，包括一个小尺寸的说明性示例，其中有五个节点，即意大利高压（380kV）功率网和IEEE 118-BUS系统。我们的结果表明，该方法能够防止级联故障，可以控制网络的每个节点或合适的子集。
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.
