论文标题
大规模互连系统中的分层网络攻击检测
Hierarchical Cyber-Attack Detection in Large-Scale Interconnected Systems
论文作者
论文摘要
在本文中，我们提出了一个分层方案，用于检测大规模互连系统（LSS）的分层控制体系结构中的网络攻击。我们将LSS视为一个物理耦合子系统的网络，配备了两层控制器：在本地级别，分散的控制器保证总体稳定性和参考跟踪；在监督级别上，集中式协调员为当地监管机构设置了参考。我们提出了一个方案，以检测在地方一级发生的攻击，恶意药物能够影响当地控制。检测方案是在监督级别计算的，仅需要有限的数据和模型知识交换。我们提供了对拟议方案的详细理论分析，从鲁棒性，可检测性和隐身条件下强调了其检测性能。
In this paper we present a hierarchical scheme to detect cyber-attacks in a hierarchical control architecture for large-scale interconnected systems (LSS). We consider the LSS as a network of physically coupled subsystems, equipped with a two-layer controller: on the local level, decentralized controllers guarantee overall stability and reference tracking; on the supervisory level, a centralized coordinator sets references for the local regulators. We present a scheme to detect attacks that occur at the local level, with malicious agents capable of affecting the local control. The detection scheme is computed at the supervisory level, requiring only limited exchange of data and model knowledge. We offer detailed theoretical analysis of the proposed scheme, highlighting its detection properties in terms of robustness, detectability and stealthiness conditions.
