Robust Load Frequency Control of Power Systems Against Random Time-Delay Attacks

This letter presents a perturbation estimation based robust load frequency control (LFC) scheme for power system subject to random time-delay attack. Perturbation term is defined to describe the measurement deviation caused by random time-delay attack. Besides, perturbation observer is designed to e...

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Bibliographic Details
Published inIEEE transactions on smart grid Vol. 12; no. 1; pp. 909 - 911
Main Authors Xiahou, K. S., Liu, Y., Wu, Q. H.
Format Journal Article
LanguageEnglish
Published Piscataway IEEE 01.01.2021
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
Delay
Delays
Frequency control
Load frequency control
Observers
Perturbation
Perturbation methods
perturbation observer
Power system stability
random time-delay attack
Robust control
Time-frequency analysis
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Summary:This letter presents a perturbation estimation based robust load frequency control (LFC) scheme for power system subject to random time-delay attack. Perturbation term is defined to describe the measurement deviation caused by random time-delay attack. Besides, perturbation observer is designed to estimate the system perturbation. The load frequency controller is compensated based on the perturbation estimation to mitigate the random time-delay attack and ensure the stable operation of power system. Case studies are undertaken on a two-area LFC model to demonstrate the control performance of the scheme.
Bibliography:ObjectType-Article-1
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ISSN:1949-3053
1949-3061
DOI:10.1109/TSG.2020.3018635