Cyber-Attacks in the Automatic Generation Control

Vrakopoulou, Maria; Esfahani, Peyman Mohajerin; Margellos, Kostas; Lygeros, John; Andersson, G.

doi:10.1007/978-3-662-45928-7_11

Cited by 30 publications

(21 citation statements)

References 18 publications

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“…Many studies are devoted to the models and methods of detection based on the use of Markov chains [20][21][22][23]. The typical disadvantage of most SRCA that are proposed in these studies is lack of an opportunity to quickly replenish the repository of cyberattacks' patterns, as they almost always use only one methodology of recognition.…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

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A model developed for teaching an adaptive system of recognising cyberattacks among non-uniform queries in information systems

Lakhno

Mohylnyi

Donchenko

et al. 2016

EEJET

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Section: Literature Review and Problem Statementmentioning

confidence: 99%

“…In the above studies, which are of interest in solving the problems of identifying cyberattacks, the models used are based only on information about query inflows and saturation streams [6,8,15,16,20]. Recent cyberattacks have become extremely complex.…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

A model developed for teaching an adaptive system of recognising cyberattacks among non-uniform queries in information systems

Lakhno

Mohylnyi

Donchenko

et al. 2016

EEJET

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“…On the other hand, this transformation has introduced a high dependence on data communications, as the control loops involved in the new LFC would use communication networks such as the supervisory control and data acquisition (SCADA) system to transmit measurements and control data. However, the communication channels in the SCADA network for data exchange, especially the ones for wide-area measurements, are usually unprotected, leaving the LFC system more exposed to cyber threats [4][5][6]. In fact, it has been reported that the conventional LFC loops of multi-area systems with pure AC interconnections can be vulnerable to a large number of malicious intrusions [7,8].…”

Section: Introductionmentioning

confidence: 99%

Effects of Cyber Attacks on AC and High-Voltage DC Interconnected Power Systems with Emulated Inertia

et al. 2020

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The high penetration of renewable energy resources and power electronic-based components has led to a low-inertia power grid which would bring challenges to system operations. The new model of load frequency control (LFC) must be able to handle the modern scenario where controlled areas are interconnected by parallel AC/HVDC links and storage devices are added to provide virtual inertia. Notably, vulnerabilities within the communication channels for wide-area data exchange in LFC loops may make them exposed to various cyber attacks, while it still remains largely unexplored how the new LFC in the AC/HVDC interconnected system with emulated inertia would be affected under malicious intrusions. Thus, in this article, we are motivated to explore possible effects of the major types of data availability and integrity attacks—Denial of Service (DoS) and false data injection (FDI) attacks—on such a new LFC system. By using a system-theoretic approach, we explore the optimal strategies that attackers can exploit to launch DoS or FDI attacks to corrupt the system stability. Besides, a comparison study is performed to learn the impact of these two types of attacks on LFC models of power systems with or without HVDC link and emulated inertia. The simulation results on the the exemplary two-area system illustrate that both DoS and FDI attacks can cause large frequency deviations or even make the system unstable; moreover, the LFC system with AC/HVDC interconnections and emulated inertia could be more vulnerable to these two types of attacks in many adversarial scenarios.

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“…The applicability of reachability analysis in power systems has been reported in a wide range of applications, such as, cyber-security [4], [5], assessment of conventional power plants [6] and wind turbines [7], load flow and static performance [8], [9], reachability-based control synthesis [10], [11], estimation of stability regions [12], [13], and transient stability analysis [14], the main focus of this paper. Transient stability analysis dates back to the 1920s [15] and is widely recognized technically and historically among theorists and practitioners alike as the most problematic issue when considering the dynamic security assessment of power systems [16].…”

Section: Introductionmentioning

confidence: 99%

Compositional transient stability analysis of power systems via the computation of reachable sets

El-Guindy

Chen

Althoff

2017

2017 American Control Conference (ACC)

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Abstract-The main challenge associated with the analysis of power systems via the computation of reachable sets is improving the algorithmic efficiency to scale towards industrially relevant problem sizes. In this paper, we present a compositional algorithm that can drastically reduce the computational effort required to assess the dynamical response of power systems during transients using reachability analysis. The main reason for the algorithmic efficiency is that we reformulate the transmission network into a set of subsystems, each consisting of a synchronous generator connected to a generator bus, whose algebraic constraints are unknown-but-bounded within some confidence intervals. This makes it possible to parallelize the computation of reachable sets for transient stability analysis and, more importantly, preserve the interaction and correlation between different machines connected to the grid. The applicability of the proposed compositional algorithm is illustrated on several benchmark examples and compared to other algorithms that compute the reachable set without employing any compositional techniques.

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Cyber-Attacks in the Automatic Generation Control

Cited by 30 publications

References 18 publications

A model developed for teaching an adaptive system of recognising cyberattacks among non-uniform queries in information systems

A model developed for teaching an adaptive system of recognising cyberattacks among non-uniform queries in information systems

Effects of Cyber Attacks on AC and High-Voltage DC Interconnected Power Systems with Emulated Inertia

Compositional transient stability analysis of power systems via the computation of reachable sets

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