Cascade Failure in a Phase Model of Power Grids
Cascade Failure in a Phase Model of Power Grids
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DOI：
10.1143/jpsj.81.074005
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发表时间：
2012-05
影响因子：
1.7
通讯作者：
H. Sakaguchi;T. Matsuo
中科院分区：
文献类型：
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作者：
H. Sakaguchi;T. Matsuo
本文提出了一种研究由发电机和负荷组成的电网中级联故障的相模型。当电力需求低于某一临界值时，电网模型系统通过反馈控制维持标准频率。另一方面，如果电力需求超过临界值，则通过失步（失去同步）或电压崩溃发生电力故障。将这两种故障合并为发电机节点和负荷节点的两种切除规则。我们进行直接数值模拟的相位模型上的正方形晶格和无标度网络，并比较结果与平均场近似。
We propose a phase model to study cascade failure in power grids composed of generators and loads. If the power demand is below a critical value, the model system of power grids maintains the standard frequency by feedback control. On the other hand, if the power demand exceeds the critical value, an electric failure occurs via step out (loss of synchronization) or voltage collapse. The two failures are incorporated as two removal rules of generator nodes and load nodes. We perform direct numerical simulation of the phase model on a square lattice and a scale-free network and compare the results with a mean-field approximation.