A Cross-Layer Design Approach to Strategic Cyber Defense and Robust Switching Control of Cyber-Physical Wind Energy Systems
A Cross-Layer Design Approach to Strategic Cyber Defense and Robust Switching Control of Cyber-Physical Wind Energy Systems
复制标题
战略网络防御和网络物理风能系统鲁棒切换控制的跨层设计方法
DOI：
10.1109/tase.2022.3164860
复制
发表时间：
2023
影响因子：
5.6
通讯作者：
Zhu, Quanyan
中科院分区：
文献类型：
--
作者：
Chen, Juntao;Zhu, Quanyan
随着智能传感和物联网（IoT）设备的日益普及，风能系统（WES）变得更容易受到网络和物理攻击。因此，设计一个安全和有弹性的WES至关重要。本文首先提出了一个系统的系统（SoS）框架的信息物理WES。具体而言，一方面，我们采用博弈论模型来捕捉WES系统防御者和对手之间的网络层的相互作用。这个网络防御博弈的结果反映在控制感知的纳什均衡中。另一方面，我们设计了一个网络感知的鲁棒性和弹性切换控制器的基础上的马尔可夫跳变线性系统模型的物理WES。WES网络层和物理层的性能由于其自然耦合而相互依赖。我们进一步研究了集成WES的SoS均衡，它从整体上考虑了系统的安全性，鲁棒性和弹性。最后，我们使用案例研究来证实开发的跨层设计原则的网络物理WES。从业人员注意-随着越来越多的物联网设备被用于WES的通信，监控和运营支持目的，网络安全成为风能系统（WES）运营商的关键问题。WES中的这种网络-物理集成创造了更广泛的攻击面，因为对手可以通过攻击其依赖的网络空间来破坏物理WES。为了减轻攻击的影响，运营商不仅要为WES设计智能控制策略，还要从战略上保护WES的网络层。这两个目标自然是联系在一起的。一方面，WES在不同的受损条件下运行，这取决于网络层的攻击行为。因此，控制设计需要通过考虑实时网络状态来感知对手。另一方面，对手的网络攻击策略受到WES性能下降的影响。因此，相应的攻击措施和对策，反过来，应该是物理控制意识。本文建立了一个整体的数学框架，同时解决这两个具有挑战性的目标。所获得的解决方案提供了指导方针，WES运营商的最佳安全资源投资，以抵御网络攻击和鲁棒的开关控制设计，以减轻攻击的影响进一步。这种方法为WES运营商创建了一个深度防御范例，以在对抗性环境中保持能源系统的效率。这种跨层的设计方法也是有效的和用户友好的在线实现与开发的迭代算法。仿真算例表明了该方法的有效性。然而，在将其与生产标准整合之前，有必要在实践中对该方法进行更彻底的验证。
Due to the increasing adoption of smart sensing and Internet of things (IoT) devices, wind energy system (WES) becomes more vulnerable to cyber and physical attacks. Therefore, designing a secure and resilient WES is critical. This paper first proposes a system-of-systems (SoS) framework for the cyber-physical WES. Specifically, on the one hand, we adopt a game-theoretic model to capture the interactions between the WES system defender and the adversary at the cyber layer. The outcome of this cyber defense game is reflected by control-aware Nash equilibria. On the other hand, we devise a cyber-aware robust and resilient switching controller based on a Markov jump linear system model for the physical WES. The performances of the WES cyber and physical layers are interdependent due to their natural couplings. We further investigate the SoS equilibrium of the integrated WES, which considers the system security, robustness, and resilience holistically. Finally, we use case studies to corroborate the developed cross-layer design principles for the cyber-physical WES. Note to Practitioners—Cybersecurity becomes a critical concern of wind energy system (WES) operators as an increasing amount of IoT devices are adopted for WES’s communication, monitoring, and operation support purposes. This cyber-physical integration in WES creates a much broader attack surface because adversaries can compromise the physical WES by attacking its dependent cyberspace. To mitigate the impact of attacks, the operator should not only design intelligent control strategies for WES but also strategically secure the WES’s cyber layer. These two goals are naturally coupled together. On the one hand, the WES operates under different compromised conditions depending on the attack actions at the cyber layer. Thus, the control design needs to be adversary-aware by taking the real-time cyber state into account. On the other hand, the adversary’s cyberattack strategy is influenced by the induced performance degradation of WES. Hence, the corresponding attack measures and countermeasures, in turn, should be physically control-aware. This paper establishes a holistic mathematical framework to simultaneously address these two challenging objectives. The obtained solution provides guidelines for the WES operator on the optimal security resource investment in defending against cyberattacks and the robust switching control design to mitigate the impacts of attacks further. This methodology creates a defense-in-depth paradigm for the WES operators to maintain the energy system efficiency in the adversarial environment. This cross-layer design approach is also efficient and user-friendly for online implementation with the developed iterative algorithm. The simulated-based case studies in this paper show the effectiveness of the proposed approach. However, a more thorough validation of the method in practice is necessary before its integration with the production standard.
风能系统相互依赖的战略网络防御和稳健的切换控制设计
DOI：
--
发表时间：
2017
期刊：
IEEE Power & Energy Society General Meeting
影响因子：
--
作者：
Juntao Chen;Quanyan Zhu
通讯作者：
Quanyan Zhu