Event-triggered robust MPC of nonlinear cyber-physical systems against DoS attacks

作     者：Qi SUN Jicheng CHEN Yang SHI Qi SUN;Jicheng CHEN;Yang SHI

作者机构：Department of Mechanical Engineering University of Victoria 

出 版 物：《Science China(Information Sciences)》 (中国科学:信息科学(英文版))

年 卷 期：2022年第65卷第1期

页      面：22-38页

核心收录：

学科分类：0711[理学-系统科学] 0301[法学-法学] 08[工学] 0839[工学-网络空间安全] 0802[工学-机械工程] 0811[工学-控制科学与工程] 080201[工学-机械制造及其自动化] 

主　　题：cyber-physical systems nonlinear model predictive control event-triggered mechanism robust control denial-of-service attacks 

摘      要：This paper proposes an event-triggered robust nonlinear model predictive control(NMPC) framework for cyber-physical systems(CPS) in the presence of denial-of-service(Do S) attacks and additive disturbances. In the framework, a new robustness constraint is introduced to the NMPC optimization problem in order to deal with additive disturbances, and a packet transmission strategy is designed for NMPC such that Do S attacks can be tackled. Then, an event-triggered mechanism, which accommodates Do S attacks occurring in the communication network, is proposed to reduce the communication cost for resource-constrained CPSs. Besides, we prove that the NMPC algorithm is recursively feasible and the closed-loop system is input-to-state practical stable under some sufficient conditions. Simulation examples and comparisons are conducted to show the effectiveness of the proposed NMPC algorithm.