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Distributed Secure State Estimation and Control for CPSs Under Sensor Attacks
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DOI：10.1109/TCYB.2018.2868781.png)
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摘要
En 中文
In this paper, we investigate the distributed secure state estimation and control problems for interconnected cyber-physical systems (CPSs) with some sensors being attacked. First, by exploring the distinct properties of the unidentifiable attacks to a CPS, an explicit sufficient condition that the secure state estimation problem can be solvable is established. Then distributed preselectors and observers are presented to solve the secure state estimation problems. Furthermore, with the obtained state estimation, fractional dynamic surface-based distributed secure controllers are also proposed for the secure control problem. Theoretical analysis shows that, with the proposed distributed secure observers and controllers, not only the state of the CPS under attacks can be obtained in a given finite time but also the dynamic surface can be achieved and maintained in a finite time. Finally, the results are applied to an islanded micro-grid system as an illustration, which verifies the effectiveness of the proposed schemes.
Keyword:
Cyber-physical system (CPS)
distributed secure control
secure state estimation
sensor attacks
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期刊
IF:
10.5
论文数:
1.1W
被引数:
5.0W
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引用论文
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