摘要
针对具有复杂非线性动态的信息物理系统(CPS)在拒绝服务(DoS)攻击下的跟踪协同控制问题,提出了一种分布式间歇控制方法。首先,将CPS建模为一类二阶非线性多智能体系统,通过在控制器中引入间歇机制来设计分布式控制器。其次,使用驻留时间分析方法对DoS攻击的持续时间和频率进行了详细分析,以保证DoS攻击下系统可以实现跟踪协同。此外,通过构造合适的李雅普诺夫函数和利用数学归纳法,分析所得误差系统的稳定性,最终得到跟踪协同的充分条件。值得注意的是,该结果为控制增益的设计提供了更高的灵活性。最后,通过仿真验证了所提理论结果的有效性和可靠性。
For the cooperative tracking control problem of cyber-physical system(CPS)with complex nonlinear dynamics under denial-of-service(DoS)attack,a distributed intermittent control method is proposed.Firstly,the CPS is modeled as a class of second-order nonlinear multi-agent systems,and a distributed controller is designed by introducing an intermittent mechanism.Secondly,by utilizing the dwell time analysis method,explicit analysis of the duration and frequency of DoS attack is presented so that the cooperative tracking behaviors can be ensured under DoS attack.In addition,by constructing appropriate Lyapunov function and employing the inductive approach,the stability of cooperative error system is analyzed to derive the sufficient conditions for achieving cooperative tracking behaviors.It is important to note that the proposed results provide high flexibility for control gain design.Finally,simulation results are given to verify the effectiveness and reliability of the proposed theoretical results.
作者
游秀
许俊茹
贾新春
YOU Xiu;XU Jun-ru;JIA Xin-chun(School of Mathematical Sciences,Shanxi University,Taiyuan 030006,China;School of Automation and Software Engineering,Shanxi University,Taiyuan 030006,China)
出处
《控制工程》
CSCD
北大核心
2022年第6期971-976,共6页
Control Engineering of China
基金
国家自然科学基金(61803243,61973201)
山西省教育厅高校科技创新项目(2020L0011)。
关键词
信息物理系统
拒绝服务攻击
分布式间歇控制
协同跟踪控制
Cyber-physical system
denial-of-service attack
distributed intermittent control
cooperative tracking control
