Resilient transactive control in microgrids under dynamic load altering attacks

Baron-Prada, Eder; Osorio, Estefany; Mojica‐Nava, Eduardo

doi:10.1109/ccac.2017.8276400

Cited by 9 publications

(11 citation statements)

References 15 publications

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“…To summarize, using the Sylvester equation based parametrization, we can freely vary (G, β) (under Assumption 4) and compute the corresponding unique X using (13a) and the unique ∆ using (16a)-(16b). This renders (14) as an unconstrained optimization problem is variables (G, β).…”

Section: Optimal Load-altering Attacksmentioning

confidence: 99%

“…Next, we compute the analytical expressions for the gradient and Hessian of the cost in (14), which will be used to solve numerically the optimization problem. Let g vec(G), x v = vec(X), φ = vec(Φ), δ = vec(∆), and let the free variables of ( 14) be denoted by z…”

Section: Optimal Load-altering Attacksmentioning

confidence: 99%

“…Algorithm 1: Damped Newton descent for (14) Input: E, A, B, C, W, g 0 , β 0 . Output: Local minimum (∆, X, ω) of ( 14).…”

Section: Optimal Load-altering Attacksmentioning

confidence: 99%

“…The case of (single-point) dynamic load-altering attacks against power systems was first presented in [6], which discusses the implementation details and the destabilizing impact of this type of attacks. Subsequent works have analyzed the ability to detect such attacks [9], as well as the design of optimal attack inputs [10]- [13] and defense mechanisms [14]- [16], among others. This paper complements this line of work by providing the theoretical and algorithmic basis to design minimally-invasive, multi-point, dynamic load-altering attacks, which destabilize the grid by minimally modifying only a predefined subset of loads.…”

Section: Introductionmentioning

confidence: 99%

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Optimal Dynamic Load-Altering Attacks Against Power Systems

Katewa

Pasqualetti

2021

2021 American Control Conference (ACC)

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In this paper we study dynamical load-altering attacks in power networks, where an attacker aims to destabilize the network by modifying a portion of the loads present in it, and provide a provable method to design such attacks. From a practical standpoint, dynamic load-altering attacks are easily implemented by tampering with demand response and demand side management services, and can greatly compromise the efficiency and reliability of the grid. From a technical standpoint, dynamic load-altering attacks act as sparse perturbations to the network matrices that alter key dynamical properties, thus constituting a form of distributed or sparse controller for network systems. We cast the problem of designing minimally-invasive destabilizing load-altering attacks as a sparse stability radius optimization problem, and present a numerical algorithm to efficiently compute optimal destabilizing load-altering attacks. This analysis provides a vulnerability map that identifies secure and vulnerable loads in the power network. We illustrate our results using the IEEE-39 bus system.

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Section: Optimal Load-altering Attacksmentioning

confidence: 99%

Section: Optimal Load-altering Attacksmentioning

confidence: 99%

“…Algorithm 1: Damped Newton descent for (14) Input: E, A, B, C, W, g 0 , β 0 . Output: Local minimum (∆, X, ω) of ( 14).…”

Section: Optimal Load-altering Attacksmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Optimal Dynamic Load-Altering Attacks Against Power Systems

Katewa

Pasqualetti

2021

2021 American Control Conference (ACC)

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“…Among the researches for CPS, the system of CPS can be described as a networked control system (NCS), the models of cyber-attacks, including denialof-service (DoS), false data injection attack (FDIA), stealthy attack and replay attacks, can be formulated as a typical NCS model from control theory perspective [3]. As the traditional grid is gradually replaced by smart grids, an increasing number of smart components and new information technologies are used to improve the efficiency and reliability of power systems [4,5]. However, the usage of communication networks and information technology provides an opportunity for adversaries who can launch malicious attacks to the power system [6].…”

Section: Introductionmentioning

confidence: 99%

An adaptive sliding‐mode resilient control strategy in smart grid under mixed attacks

Yang

Gao

et al. 2021

IET Control Theory & Appl

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This paper is concerned with security problems for cyber-physical systems (CPSs) under dynamic load altering attacks (DLAA) and false data injection attacks (FDIA). The smart grid, as a typical CPS system, is taken as an example in this paper. Since the communication channel is vulnerable to FDIA and DLAA, the stability of the smart grid may be influenced. For enhancing resilience and stability of smart grids, first of all, the power system model including both DLAA and FDIA is introduced. Second, an adaptive sliding mode controller is proposed. The controller can ensure the reliable operation of the power system in the case of unknown attack information by using the adaptive mechanism online estimating the upper bound of attack signal to automatically eliminate the effect of mixed attacks. Finally, a power system with three generators and six buses is taken as an illustrative example, and simulation and experiment results obtained by using MATLAB and Hardware-in-time platform built by Sartsim verify the effectiveness of the proposed resilient defense strategy.

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