Understanding the vulnerability of power-grids to cascading failures using complex-network analysis

这个博士学位使用复杂网络分析来研究电网中的连锁故障。在PHD中，建立了模拟连锁故障的模型。这个模型被用来挑战该领域中的某些常见假设。应变高程拉伸弹簧(SETS)嵌入框架用于分析复杂网络的稳健性，并用于比较具有不同加载参数和拓扑的网络的相对稳健性。结合仿真模型和集合嵌入的知识，分析了网络物理攻击对英国电网造成的威胁，并提出了防御措施。

This PhD explores cascading failures in the power-grid using complex network analysis. Within the PhD, a model for simulating cascading failures is developed. This model is used to challenge certain common assumptions in the field. The Strain Elevation Tension Spring (SETS) embeddings framework is developed for analysing the robustness of complex networks and used to compare relative robustness for networks with different loading parameters and topologies. The broad applicability of the SETS algorithm is demonstrated on non-flow graphs and as a clustering method.With the knowledge gained from the simulation model and the SETS embeddings, the threat posed by a cyber-physical attack on the UK power grid is analysed and defensive measures proposed.