arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2006.12282eess.SYcs.SY
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电网中代价受限的混合攻击

Cost Restrained Hybrid Attacks in Power Grids

Xiaolin Gao, Cunlai Pu, Lunbo Li

摘要:

近年来,电网连锁故障的频繁发生一直受到人们的关注。了解电网在各种攻击下的连锁故障脆弱性是我们面临的一项紧迫任务。考虑了电网中的一个代价受限的混合攻击问题,其中节点和链路都以有限的总攻击代价为目标。我们提出了一个组件(节点或链路)的攻击中心性度量的基础上的后果和成本的组件的删除。根据所考虑的级联故障的宽度,攻击中心可以是局部或全局攻击中心。利用攻击中心性,我们进一步提出了一种贪婪混合攻击,以及一种基于粒子群优化(PSO)框架的最优混合攻击。对IEEE总线测试数据的仿真结果表明,最优混合攻击比贪婪混合攻击更有效。此外,我们发现反直观的局部中心性的算法优于全局中心性的攻击问题时,考虑成本约束。

英文摘要:

The frequent occurrences of cascading failures in power grids have been receiving continuous attention in recent years. An urgent task for us is to understand the cascading failure vulnerability of power grids against various kinds of attacks. We consider a cost restrained hybrid attack problem in power grids, in which both nodes and links are targeted with a limited total attack cost. We propose an attack centrality metric for a component (node or link) based on the consequence and cost of the removal of the component. Depending on the width of cascading failures considered, the attack centrality can be a local or global attack centrality. With the attack centrality, we further provide a greedy hybrid attack, and an optimal hybrid attack with the Particle Swarm Optimization (PSO) framework. Simulation results on IEEE bus test data show that the optimal hybrid attack is more efficient than the greedy hybrid attack. Furthermore, we find counterintuitively that the local centrality based algorithms are better than the global centrality based ones when the cost constraint is considered in the attack problem.

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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