执行器被攻击下不确定信息物理融合系统的超螺旋控制

Super-twisting Control for Uncertain Cyber–physical Systems Under Being Attacked

文章研究了具有外界干扰和执行器被虚假数据注入攻击的不确定信息物理融合系统的安全控制问题。为防御攻击,提出一种基于超螺旋的安全控制策略。首先,设计了一种积分型滑模函数,分析了滑模动态的稳定性;其次,通过使用线性矩阵不等式技术求解出滑模参数,并基于求解出的参数设计出超螺旋控制器,同时证明了闭环系统可以在有限时间内收敛;最后,通过一个仿真实例验证了所提算法的有效性。

This paper is to provide theoretical basis and research way for predictive control of the complex network control system.In this paper,the issue of the control for uncertain cyber–physical systems is developed.Considered the systems suffer from the actuator attack,a super-twisting control method is designed to defense the attack.Firstly,an integral sliding-mode function is presented,and the sliding-mode dynamics is analyzed.Then,the slide-mode parameter is solved by linear matrix inequality theory,and a super-twisting controller is synthesized based on the solved slide-mode parameter.Simutaneously,the finite-time convergence of the close-loop system is proved.Finally,an example is executed to verify the correctness of the proposed method.