Destabilizing smart grid by dynamic load altering attack using PI controller

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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“…where σi and fsi are given by (10). In the control rate ( 27), the gain matrix K and other parameters are the same as in (8).…”

Section: A Sliding Mode Controller For Fdiamentioning

confidence: 99%

“…Dynamic load altering attack (DLAA) was proposed in [9]. We can learn from [10] that DLAA is a stealthy attack, which focuses on demand response and demand management procedures. For obtaining the operating frequency, DLAA needs to invade the wide‐area measurement or sensors of the smart grid system.…”

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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“…Dynamic load altering attacks are categorised under (i) open-loop and closed-loop attacks and (ii) single-point and multi-point attacks. In closed-loop feedback type attack, the attacker controls the victim load to create large deviations in frequency, thereby disrupting the normal operation of the power system [10,11]. The application of variable structure system theory (VSST) in a smart grid system for developing switching attack is studied in [12,13].…”

Section: Introductionmentioning

confidence: 99%