虚假数据注入攻击下信息物理系统动态输出反馈控制  

Dynamic output feedback control of cyber-physical systems under false data injection attacks

作　　者：祝超群[1,2,3] 朱怡蓉 ZHU Chao-qun;ZHU Yi-rong(School of Electrical and Information Engineering,Lanzhou Univ.of Tech.,Lanzhou 730050,China;Key Laboratory of Gansu Advanced Control for Industrial Processes,Lanzhou Univ.of Tech.,Lanzhou 730050,China;National Demonstration Center for Experimental Electrical and Control Engineering Education,Lanzhou Univ.of Tech.,Lanzhou 730050,China)

机构地区：[1]兰州理工大学电气工程与信息工程学院,甘肃兰州730050 [2]兰州理工大学甘肃省工业过程先进控制重点实验室,甘肃兰州730050 [3]兰州理工大学电气与控制工程国家级实验教学示范中心,甘肃兰州730050

出　　处：《兰州理工大学学报》2023年第1期74-82,共9页Journal of Lanzhou University of Technology

基　　金：国家自然科学基金(61563031,61863026);甘肃省高等学校产业支撑引导项目(2019C-05);甘肃省工业过程先进控制重点实验室开放基金(2019KFJJ03)。

摘　　要：针对受到虚假数据注入攻击的信息物理系统安全控制问题,将虚假数据注入攻击作为一类特殊的外部扰动,提出了一种具有攻击防御能力的H_(∞)动态输出反馈控制策略.首先,考虑虚假数据注入攻击对测量通道与随机时延对通信网络的影响,建立了一类具有网络攻击、随机时延和外部扰动等多种约束的闭环系统模型;其次,借助李雅普诺夫稳定性理论推导出攻击下闭环系统渐近稳定的充分条件,并基于线性矩阵不等式技术给出了H_(∞)动态输出反馈控制器的设计方法;最后通过一个仿真算例验证了所述方法的可行性和有效性.In this paper,an H-infinity dynamic output feedback control strategy with attack defense ability is investigated to deal with the problem of security control of cyber-physical system(CPS)under false data injection(FDI)attacks,which is taken as a special kind of external disturbance.Firstly,the effect of FDI attacks in the measurement channel and random time-delay on the communication network is considered,and a closed-loop system model with FDI attack,random time-delay,and external disturbance is established.Secondly,the sufficient conditions for the asymptotic stability of the closed-loop system under FDI attacks are derived based on the Lyapunov stability theory,and then the design scheme of H-infinity dynamic output feedback controller by utilizing linear matrix inequality technology is presented.Finally,a simulation example is given to demonstrate the feasibility and effectiveness of the proposed method.

关 键 词：信息物理系统 虚假数据注入攻击 随机时延 动态输出反馈控制 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]