Sliding Mode Control for Robustness in Networked Switched Systems Under Denial-of-Service Attacks

• 成果类型: Article
• 署名作者: Meng, Qingkai; Kasis, Andreas; Polycarpou, Marios M.
• 署名单位: University of Cyprus
• 刊物名称: IEEE TRANSACTIONS ON AUTOMATIC CONTROL
• ISSN/ISSBN: 0018-9286
• DOI: 10.1109/TAC.2025.3554429
• 发表日期: 2025
• 页码: 6021-6035
• 关键词: Denial-of-service attack; switches; Switched systems; control systems; DELAYS; uncertainty; Physical layer; vectors; Sliding mode control; Power system stability; denial-of-service (DoS) attack; networked switched system (NSS); safety control; sliding-mode control (SMC)

摘要

Denial-of-service (DoS) attacks impose an important threat for networked switched systems, as they impede the effective transmission of the control signals and measurement data and disrupt the synchronization of the switching modes between the controllers and the plant. To address this challenge, this article proposes a sliding-mode controller design for safety against DoS attacks in networked switched systems. First, we analyze the impact of the time delays induced by signal quantization and DoS attacks on the switching signals, control laws, and measurement data. We then design an integral sliding surface associated with the switching modes such that, when system uncertainties, disturbances, and the frequency and duration of DoS attacks are suitably bounded, input-to-state practical stability is guaranteed. Moreover, a reaching law is designed such that the trajectories of the networked switched system reach the sliding surface in finite time. The practicality and applicability of the proposed approach is demonstrated with numerical simulations on a networked continuous stirred tank reactor system.