Observer-based dynamic event-triggered H∞ LFC for power systems under actuator saturation and deception attack

Yingchun Wang, Wei Yan, Huaguang Zhang and Xiangpeng Xie

Applied Mathematics and Computation, 2022, vol. 420, issue C

Abstract: This paper focuses on the observer-based H∞ load frequency control (LFC) of multi-area power systems with actuator saturation and deception attack. Firstly, a state observer is constructed to estimate the unmeasurable states and a time-delay model with the area control error is established. Secondly, a dynamic event triggering mechanism is developed, where dynamic parameter and a novel error-related exponential term are introduced to reduce the communication burden further in the network. Thirdly, considering time delays, data-packet losses and stochastic deception attack, a resilient LFC controller of power systems based on actuator saturation is designed and the security of the system is guaranteed with the condition of H∞ mean-square exponential stability. Sufficient conditions to co-design the event-triggered scheme, observer and desired controller gain are derived by Lyapunov functional analysis approach. Finally, simulation example is given to demonstrate the efficiency of the developed method.

Keywords: Dynamic event-triggered mechanism; H∞ load frequency control; State observer; Stochastic deception attack; Actuator saturation control (search for similar items in EconPapers)
Date: 2022
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Citations: View citations in EconPapers (1)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:apmaco:v:420:y:2022:i:c:s0096300321009796

DOI: 10.1016/j.amc.2021.126896

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