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Cyber attack mitigation for cyber–physical systems: hybrid system approach to controller design

机译:缓解网络物理系统的网络攻击:控制器设计的混合系统方法

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摘要

This study considers robust controller design for cyber–physical systems (CPSs) subject to cyber attacks. While previous studies have investigated secure control by assuming specific attack strategies, in this study the authors propose a robust hybrid control scheme containing multiple sub-controllers, each matched to a different type of cyber attack. A system using this control scheme is able to adapt its behaviour to various cyber attacks (including those which have not been specifically addressed in the sub-controller designs) by switching sub-controllers to achieve the best performance. They propose a method for designing the secure switching logic to counter possible cyber attacks and to mathematically verify the system's performance and stability as well. The performance of the proposed control scheme is demonstrated by the hybrid – controller applied to a CPS subject to cyber attacks.
机译:本研究考虑了遭受网络攻击的网络物理系统(CPS)的鲁棒控制器设计。尽管先前的研究已经通过假设特定的攻击策略来研究安全控制,但是在本研究中,作者提出了一种鲁棒的混合控制方案,其中包含多个子控制器,每个子控制器都与不同类型的网络攻击相匹配。使用此控制方案的系统能够通过切换子控制器以达到最佳性能,使其行为适应各种网络攻击(包括那些在子控制器设计中未专门解决的攻击)。他们提出了一种设计安全交换逻辑的方法,以应对可能的网络攻击并以数学方式验证系统的性能和稳定性。所提出的控制方案的性能通过混合控制器来证明,该控制器适用于遭受网络攻击的CPS。

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