论文标题
在智能电网网络中建立数学脆弱性传播和防御模型
Toward a Mathematical Vulnerability Propagation and Defense Model in Smart Grid Networks
论文作者
论文摘要
为了减少与连接网络中的威胁传播，最佳分配国防投资至关重要。大多数电力公用事业都是资源限制的，但是如何在设计减少威胁技术的同时考虑成本。因此，在这项工作中，基于流行病模型提出了脆弱性传播和防御模型。然后，通过使用两个节点和N节点案例对最佳投资的传播参数的敏感性来验证新的防御机制。此外，在网络物理功率系统的一个通信网络之一中通过实施评估了模型功效。还强调了对最佳节点投资的拓扑影响。发现邻居的最佳投资被认为对脆弱性可利用性概率的波动非常敏感。
For reducing threat propagation within an inter-connected network, it is essential to distribute the defense investment optimally. Most electric power utilities are resource constrained, yet how to account for costs while designing threat reduction techniques is not well understood. Hence, in this work, a vulnerability propagation and a defense model is proposed based on an epidemic model. The new defense mechanism is then validated through sensitivity of the propagation parameters on the optimal investment with two-node and N-node cases. Further, the model efficacy is evaluated with implementation in one of the communication networks of a cyber-physical power system. Topological impact on the optimal nodal investment is also emphasized. Optimal investment of the neighbors with less degree were found to be highly sensitive to fluctuation in vulnerability exploitability probability.
