Resilient nonlinear control for attacked cyber-physical systems

Pang, Yan and Xia, Hao and Grimble, Michael (2020) Resilient nonlinear control for attacked cyber-physical systems. IEEE Transactions on Systems, Man, and Cybernetics: Systems, 50 (6). pp. 2129-2138. ISSN 2168-2216 (https://doi.org/10.1109/TSMC.2018.2801868)

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Abstract

In this paper, the problem of resilient nonlinear control for cyber-physical systems (CPSs) over attacked networks is studied. The motivation for this paper comes from growing applications that demand the secure control of CPSs in industry 4.0. The nonlinear physical system considered can be attacked by changing the temporal characteristics of the network, causing fixed time or time-varying delays and changing the orders of received packets. The systems under attack can be destabilized if the controller is not designed to be robust with an adversarial attack. In order to cope with nonlinearity of the physical system, a nonlinear generalized minimum variance controller and a modified Kalman estimator are derived. A worst-case controller is presented for fixed-time delay. In the situations of time-varying delays and out-of-order transmissions, an opportunistic estimator and a resilient controller are designed through an on-line algorithm in the sense that it is calculated by using the information in the received packets immediately. The ability to use the received information immediately leads to the improvement of the controller's performance. Simulation results are provided to show the applicability and performance of control law developed.

  • Item type:Article
    ID code:72492
    Dates:
    Date
    Event
    1 June 2020
    Published
    2 March 2018
    Published Online
    16 January 2018
    Accepted
    Notes:© 2000 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting /republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
    Subjects:Technology > Electrical engineering. Electronics Nuclear engineering
    Department:Faculty of Engineering > Electronic and Electrical Engineering
    Depositing user: Pure Administrator
    Date deposited:28 May 2020 10:14
    Last modified:28 Nov 2024 01:20
    URI:https://strathprints.strath.ac.uk/id/eprint/72492
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