Memory-Event-Triggered $H_{\infty }$ Load Frequency Control of Multi-Area Power Systems With Cyber-Attacks and Communication Delays

Abstract

This article focuses on H∞ load frequency control (LFC) of multi-area power systems with cyber-attacks and communication delays by a memory-event-triggered mechanism (METM). The dynamics of power system components, such as governor, turbine and power generator, are imitated by some circuit systems. To save the precious network bandwidth, a METM is constructed to decide which measured data should be transmitted as the control signal. In contrast to some memoryless ETMs, the proposed METM uses historic data over a fixed period. To guarantee no Zeno behavior, a positive constant time is waited after each trigger happens. By treating the exchanges of tie-line power between the ith control area and other areas as exogenous disturbances, a novel decentralized distributed delay system is modeled to represent the decentralized H∞ LFC of a multi-area power system under the proposed METM with deception attacks and communication delays. By selecting a Lyapunov-Krasovskii functional (LKF) based on the distributed delay terms, new sufficient criterions are obtained to co-design the H∞ LFC controller and triggering parameters for power systems against deception attacks. Finally, the advantages of the presented method is shown via an illustrative case. Index Terms-Memory event-triggered mechanism, load frequency control, cyber-attacks, power systems.

Event-Triggered Observer-Based $\mathcal {H}_\infty$ Consensus Control and Fault Detection of Multiagent Systems Under Stochastic False Data Injection Attacks

“…O VER the past few years, the cooperative control of multiagent systems (MASs) has become one of the important research directions in the control field due to their speedy developments in many areas, such as intelligent transportation, multiple robot systems, unmanned marine vehicles, and many industrial facilities [1][2][3][4]. However, with the increase in the amount of information transmitted by agents and the open network environment, MASs are seriously threatened by cyber attacks, which destroy the integrity and authenticity of information [5]. As a result, the performance of MAS is deteriorating or even becoming unstable.…”

“…To overcome this difficulty, the event-triggered strategy has received widespread attention [21][22][23]. However, there are relatively few research results that consider the use of event-triggered strategy to solve the security problems of MAS under FDIA [5,16,17]. Furthermore, it is noteworthy that most of these results are based on undirected communication topology and do not take into account the impact of disturbance.…”

Probability-Density-Dependent Load Frequency Control of Power Systems With Random Delays and Cyber-Attacks via Circuital Implementation

“…Different from DoS attack by blocking the connections of nets, deception attack aims to change the real value of control signal by injecting a false data, which makes it more deceptive. Considering multi-area NPSs with time-varying communication delay and deception attack, a resilient LFC approach is addressed in [25], in which the deception attack is described as a time-varying delay-dependent function. Reference [26] studies the H ∞ LFC issue of multi-area NPSs with DoS attack and deception attack, which is also modeled as a time-varying delay-dependent function.…”

Adaptive Leader-Following Consensus Tracking Control of Multiple UAVs Subject to Deception Attacks

“…As is well known, due to the limitation of communication and control resources, it is unrealistic that continuous update of the controller and continuous communication between UAVs are required in practical engineering. In order to address this issue, eventtriggered scheme (ETS) in multiple-UAV systems has attracted wide attention [13][14][15][16][17][18][19]. Considering the influence of input saturation on a multi-UAV system, the work in [20] probed into the problem of implementing predefined configuration in a distributed finitetime ETS.…”