Adaptive cyber‐physical system attack detection and reconstruction with application to power systems

Ao, Wei; Yong-dong, Song; Chen, Wen

doi:10.1049/iet-cta.2015.1147

Cited by 144 publications

(72 citation statements)

References 20 publications

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“…In the second approach, the incorrect data are isolated and removed once the attack is detected. So far, there are four detection schemes in cyber system: (1) Bayesian detection [308][309][310]; (2) weighted least square (WLS) [311][312][313][314]; (3) Kalman filters-basedχ2-detector [315,316]; and (4) quasi-FDI (fault detection and isolation) techniques [317,318].…”

Section: Type Of Attack Mathematical Modelmentioning

confidence: 99%

A Comprehensive Review of Recent Advances in Smart Grids: A Sustainable Future with Renewable Energy Resources

et al. 2020

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The smart grid is an unprecedented opportunity to shift the current energy industry into a new era of a modernized network where the power generation, transmission, and distribution are intelligently, responsively, and cooperatively managed through a bi-directional automation system. Although the domains of smart grid applications and technologies vary in functions and forms, they generally share common potentials such as intelligent energy curtailment, efficient integration of Demand Response, Distributed Renewable Generation, and Energy Storage. This paper presents a comprehensive review categorically on the recent advances and previous research developments of the smart grid paradigm over the last two decades. The main intent of the study is to provide an application-focused survey where every category and sub-category herein are thoroughly and independently investigated. The preamble of the paper highlights the concept and the structure of the smart grids. The work presented intensively and extensively reviews the recent advances on the energy data management in smart grids, pricing modalities in a modernized power grid, and the predominant components of the smart grid. The paper thoroughly enumerates the recent advances in the area of network reliability. On the other hand, the reliance on smart cities on advanced communication infrastructure promotes more concerns regarding data integrity. Therefore, the paper dedicates a sub-section to highlight the challenges and the state-of-the-art of cybersecurity. Furthermore, highlighting the emerging developments in the pricing mechanisms concludes the review.

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Section: Type Of Attack Mathematical Modelmentioning

confidence: 99%

A Comprehensive Review of Recent Advances in Smart Grids: A Sustainable Future with Renewable Energy Resources

et al. 2020

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“…In Example 4.1, the effectiveness of the designed observer for system (1) will be tested. The IEEE 6 bus power system modified from Ao et al (2016) is considered.…”

Section: Simulation Examplesmentioning

confidence: 99%

Secure state estimation for cyber physical systems with state delay and sparse sensor attacks

Zhang

Lin

2020

Systems Science & Control Engineering

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In this paper, the problem of secure state estimation for cyber physical systems (CPSs) with state delay and sparse sensor attacks is studied. An algorithm combining set cover approach and adaptive switching mechanism is proposed, which can realize off-line acquisition of candidate set and accurately locate the real attack mode. The contributions of this algorithm are that it can greatly reduce the search space, eliminate the impact of attacks on state estimation, improve the estimation speed and ensure the real-time performance of state estimation under the premise of effective estimation. The sufficient condition for the existence of the observer is obtained. Finally, the rapidity and effectiveness of the designed observer are verified by two examples.

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“…In this section, in order to verify the effectiveness of the proposed scheme, firstly, we consider the IEEE 6 bus power system with three generators and six buses in the work of Pasqualetti et al where the block diagram of the system is shown in Figure . By utilizing the small signal approach, a Kron‐reduced form of the power system is given in the work of Ao et al

([], \begin{matrix} array \dot{δ} (t) \\ array M_{g} \dot{ω} (t) \end{matrix}) = ([], \begin{matrix} array 0 & array I \\ array L_{g I} L_{I I}^{- 1} L_{I g} - L_{g g} & array - D_{g} \end{matrix}) ([], \begin{matrix} array δ (t) \\ array ω (t) \end{matrix}) + ([], \begin{matrix} array 0 & array 0 \\ array I & array - L_{g I} L_{I I}^{- 1} \end{matrix}) ([], \begin{matrix} array P_{ω} (t) - ω_{d} (t) D_{g} \\ array P_{θ} \end{matrix}),

…”

Section: Simulation Examplementioning

confidence: 99%

“…Hence, the security of CPSs has also gained increasing attention. 9,10 Recently, the CPS security is mainly studied from three aspects: the malicious attacks themselves, attack detection and estimation, and reliable control. For instance, in order to provide a reasonable defensive strategy in theory, from the viewpoint of the adversary, various attack policies were investigated in other works, [11][12][13][14] and then, the effect of the attacks on the system control (or remote state estimation) performance was analyzed.…”

Section: Introductionmentioning

confidence: 99%

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On modeling and secure control of cyber‐physical systems with attacks/faults changing system dynamics: An average dwell‐time approach

Huang

Dong

2019

Intl J Robust & Nonlinear

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Summary The problem of secure control in cyber‐physical systems is considered in this work. A new modeling framework is first introduced, ie, cyber‐physical systems with attacks/faults changing system dynamics is modeled as a switched system, where the switching among subsystems is triggered by a rule generated by attackers but unknown for defenders. Based on an average dwell‐time approach incorporated by the attack frequency and duration properties, a convergence condition of the Lyapunov function on active intervals of subsystems (ie, the attack and healthy modes), under the developed switched controller, is given. Next, the unknown rule, however, leads to the asynchronous switching problem between the candidate controllers and system modes. As a result, degradation of the system performance (eg, a large chatter occurred in the system state trajectories) in the asynchronous intervals is caused. To address the difficulty, a novel switching law based on a prescribed performance is proposed, and it is shown that the asynchronous intervals are shortened by reducing adjustable parameters in the switching law. An illustrative example verifies the effectiveness of the proposed method.

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Adaptive cyber‐physical system attack detection and reconstruction with application to power systems

Cited by 144 publications

References 20 publications

A Comprehensive Review of Recent Advances in Smart Grids: A Sustainable Future with Renewable Energy Resources

A Comprehensive Review of Recent Advances in Smart Grids: A Sustainable Future with Renewable Energy Resources

Secure state estimation for cyber physical systems with state delay and sparse sensor attacks

On modeling and secure control of cyber‐physical systems with attacks/faults changing system dynamics: An average dwell‐time approach

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