隐蔽攻击下信息物理系统的安全输出反馈控制
Secure Output-feedback Control for Cyber-physical Systems Under Stealthy Attacks
摘要
Abstract
Secure control problem of cyber-physical systems(CPS)under stealthy attacks is studied.The Kullback-Leibler(KL)divergence is adopted to describe the attack's stealthiness.The aim is to design a secure dynamic out-put-feedback controller such that the reachable set,which is defined as the set that the system's state resides in with a certain probability,resides in a safe set.Firstly,an ellipsoidal outer approximation for the set of residual un-der stealthy attacks is given.Secondly,based on the approximation and the ranges of noises,the relationship between controller's parameters and the ellipsoidal invariant reachable set is analyzed.Thirdly,a convex optimiza-tion problem is constructed by designing an invertible linear transformation.Parameters of the secure controller and the corresponding invariant reachable set are obtained by solving the problem.Finally,a simulation of the spring-mass-damping system is given to verify the effectiveness of the proposed controller.关键词
信息物理系统/隐蔽攻击/安全控制/KL散度/可达集Key words
Cyber-physical system(CPS)/stealthy attack/secure control/KL(Kullback-Leibler)divergence/reach-able set引用本文复制引用
张淇瑞,孟思琪,王兰豪,刘坤,代伟..隐蔽攻击下信息物理系统的安全输出反馈控制[J].自动化学报,2024,50(7):1363-1372,10.基金项目
江苏省自然科学基金(BK20231062,BK20200086),中央高校基本科研业务费专项资金(2023QN1074),国家自然科学基金(62373361,61973306,62273041,52304309),流程工业综合自动化国家重点实验室联合开放基金(2020-KF-21-10,2021-KF-21-05),矿冶过程自动控制技术国家重点实验室开放基金(BGRIMM-KZSKL-2022-7),江苏省研究生科研与实践创新计划(KYCX23_2717),中国矿业大学研究生创新计划项目(2023WLJCRCZL117)资助Supported by Natural Science Foundation of Jiangsu Province(BK20231062,BK20200086),Fundamental Research Funds for the Central Universities(2023QN1074),National Natural Sci-ence Foundation of China(62373361,61973306,62273041,52304309),Joint Open Foundation of State Key Laboratory of Synthetical Automation for Process Industries(2020-KF-21-10,2021-KF-21-05),Open Foundation of State Key Laboratory of Process Automation in Mining and Metallurgy(BGRIMM-KZ-SKL-2022-7),Postgraduate Research & Practice Innovation Pro-gram of Jiangsu Province(KYCX23_2717),and Graduate Innov-ation Program of China University of Mining and Technology(2023WLJCRCZL117) （BK20231062,BK20200086）
