Multivariate time-series cyberattack detection in the distributed secondary control of AC microgrids with convolutional neural network autoencoder ensemble

This paper proposes an unsupervised machine learning-based approach for cyberattack detection in AC microgrids with distributed secondary control architecture. The proposed approach is fully unsupervised and only utilizes the system’s normal datasets for the training of the algorithm. The attack und...

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Bibliographic Details
Published in:Sustainable Energy, Grids and Networks Vol. 38; p. 101374
Main Authors: Roshanzadeh, Behshad, Choi, Jeewon, Bidram, Ali, Martínez-Ramón, Manel
Format: Journal Article
Language:English
Published: Elsevier Ltd 01.06.2024
Subjects:
Convolutional neural networks
Cyberattack detection
Deep learning
Microgrid control
Deep learning
Convolutional neural networks
Microgrid control
Cyberattack detection
ISSN:2352-4677, 2352-4677
Online Access:Get full text
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Summary:This paper proposes an unsupervised machine learning-based approach for cyberattack detection in AC microgrids with distributed secondary control architecture. The proposed approach is fully unsupervised and only utilizes the system’s normal datasets for the training of the algorithm. The attack under study is a false data injection (FDI) attack tampering with the operating frequency of inverter-based distributed generators (DGs). The paper utilizes a 1D Convolutional Autoencoder (CAE) for cyberattack detection on a microgrid’s distributed secondary frequency control. An autoencoder is a neural network architecture, where the model is trained to reconstruct its input in an unsupervised manner. CAE can be applied to a time-series dataset to extract features and exploit the known correlation between neighboring temporal features. Due to the correlation between the operating frequency of DGs and their active power ratios, the paper uses the time series of these two variables as inputs to CAE. The effectiveness of the proposed approach has been verified using a simulated microgrid test system in Matlab/Simulink.
ISSN:2352-4677
2352-4677
DOI:10.1016/j.segan.2024.101374