《计算机应用研究》|Application Research of Computers

考虑量化不匹配问题的信息物理系统的安全控制

Security control of cyber-physical systems considering quantization mismatch

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作者 贾欣婷,郑柏超,裴斌
机构 南京信息工程大学 a.自动化学院;b.江苏省大气环境与装备技术协同创新中心,南京 210044
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文章编号 1001-3695(2020)06-041-1808-04
DOI 10.19734/j.issn.1001-3695.2018.11.0890
摘要 针对一类包含执行器攻击、外部干扰和编/解码器不匹配的信息物理系统(cyber-physical system,CPS),设计一种新型鲁棒控制器确保其安全稳定运行。控制器线性部分的增益由优化<i>H</i><sub>2</sub>性能的线性矩阵不等式给出;控制器的非线性结构包含两部分,一部分用于消除外部干扰、量化误差,另一部分利用对未知执行器攻击参数的自适应估计来实现对攻击的补偿。最后,仿真算例结果表明控制器能保证闭环系统的一致最终有界性,说明了所提方法的有效性。
关键词 信息物理系统; 执行器攻击; 编/解码器失配; 一致最终有界
基金项目 国家自然科学基金资助项目(61573189,61403207)
中国博士后科学基金资助项目(2015M580380)
本文URL http://www.arocmag.com/article/01-2020-06-041.html
英文标题 Security control of cyber-physical systems considering quantization mismatch
作者英文名 Jia Xinting, Zheng Bochao, Pei Bin
机构英文名 a.School of Automation,b.Jiangsu Collaborative Innovation Center on Atmospheric Environment & Equipment Technology,Nanjing University of Information Science & Technology,Nanjing 210044,China
英文摘要 This paper proposed a novel robust controller to ensure the security and stability for a class of cyber-physical systems subject to the effects including actuator attacks, external disturbances, and encoder/decoder mismatches. An optimized <i>H</i><sub>2</sub> performance in the form of linear matrix inequality solved the linear gain of the constructed controller. The nonlinear structure of the control included two parts: one aimed to eliminate the influence of external disturbance and quantization error, and the other part compensated the actuator attack by means of adaptive estimations of unknown actuator attack parameters. Finally, the simulation results show that the controller guarantees uniform ultimate boundedness of the closed-loop dynamical system, which shows the effectiveness of the proposed method.
英文关键词 cyber-physical system; actuator attacks; encoder/decoder mismatch; uniform ultimate boundedness
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收稿日期 2018/11/26
修回日期 2019/1/14
页码 1808-1811
中图分类号 TP273.3
文献标志码 A