Drift-Aware Methodology for Anomaly Detection in Smart Grid

Energy efficiency and sustainability are important factors to address in the context of smart cities. In this sense, smart metering and nonintrusive load monitoring play a crucial role in fighting energy thefts and for optimizing the energy consumption of the home, building, city, and so forth. The...

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Main Authors: Giuseppe Fenza, Mariacristina Gallo, Vincenzo Loia
Format: Article
Language:English
Published: IEEE 2019-01-01
Series:IEEE Access
Subjects:
Online Access:https://ieeexplore.ieee.org/document/8604042/
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author Giuseppe Fenza
Mariacristina Gallo
Vincenzo Loia
author_facet Giuseppe Fenza
Mariacristina Gallo
Vincenzo Loia
author_sort Giuseppe Fenza
collection DOAJ
description Energy efficiency and sustainability are important factors to address in the context of smart cities. In this sense, smart metering and nonintrusive load monitoring play a crucial role in fighting energy thefts and for optimizing the energy consumption of the home, building, city, and so forth. The estimated number of smart meters will exceed 800 million by 2020. By providing near real-time data about power consumption, smart meters can be used to analyze electricity usage trends and to point out anomalies guaranteeing companies' safety and avoiding energy wastes. In literature, there are many proposals approaching the problem of anomaly detection. Most of them are limited because they lack context and time awareness and the false positive rate is affected by the change in consumer habits. This research work focuses on the need to define anomaly detection method capable of facing the concept drift, for instance, family structure changes; a house becomes a second residence, and so forth. The proposed methodology adopts long short term memory network in order to profile and forecast the consumers' behavior based on their recent past consumptions. The continuous monitoring of the consumption prediction errors allows us to distinguish between possible anomalies and changes (drifts) in normal behavior that correspond to different error motifs. The experimental results demonstrate the suitability of the proposed framework by pointing out an anomaly in a near real-time after a training period of one week.
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spelling doaj.art-9926fd96ae0948679b51a09420d6405f2022-12-21T20:30:01ZengIEEEIEEE Access2169-35362019-01-0179645965710.1109/ACCESS.2019.28913158604042Drift-Aware Methodology for Anomaly Detection in Smart GridGiuseppe Fenza0Mariacristina Gallo1Vincenzo Loia2https://orcid.org/0000-0003-4807-8942Dipartimento di Scienze Aziendali-Management and Innovation Systems, University of Salerno, Fisciano, ItalyDipartimento di Scienze Aziendali-Management and Innovation Systems, University of Salerno, Fisciano, ItalyDipartimento di Scienze Aziendali-Management and Innovation Systems, University of Salerno, Fisciano, ItalyEnergy efficiency and sustainability are important factors to address in the context of smart cities. In this sense, smart metering and nonintrusive load monitoring play a crucial role in fighting energy thefts and for optimizing the energy consumption of the home, building, city, and so forth. The estimated number of smart meters will exceed 800 million by 2020. By providing near real-time data about power consumption, smart meters can be used to analyze electricity usage trends and to point out anomalies guaranteeing companies' safety and avoiding energy wastes. In literature, there are many proposals approaching the problem of anomaly detection. Most of them are limited because they lack context and time awareness and the false positive rate is affected by the change in consumer habits. This research work focuses on the need to define anomaly detection method capable of facing the concept drift, for instance, family structure changes; a house becomes a second residence, and so forth. The proposed methodology adopts long short term memory network in order to profile and forecast the consumers' behavior based on their recent past consumptions. The continuous monitoring of the consumption prediction errors allows us to distinguish between possible anomalies and changes (drifts) in normal behavior that correspond to different error motifs. The experimental results demonstrate the suitability of the proposed framework by pointing out an anomaly in a near real-time after a training period of one week.https://ieeexplore.ieee.org/document/8604042/Anomaly detectionconcept driftmachine learningsmart gridtime series analysis
spellingShingle Giuseppe Fenza
Mariacristina Gallo
Vincenzo Loia
Drift-Aware Methodology for Anomaly Detection in Smart Grid
IEEE Access
Anomaly detection
concept drift
machine learning
smart grid
time series analysis
title Drift-Aware Methodology for Anomaly Detection in Smart Grid
title_full Drift-Aware Methodology for Anomaly Detection in Smart Grid
title_fullStr Drift-Aware Methodology for Anomaly Detection in Smart Grid
title_full_unstemmed Drift-Aware Methodology for Anomaly Detection in Smart Grid
title_short Drift-Aware Methodology for Anomaly Detection in Smart Grid
title_sort drift aware methodology for anomaly detection in smart grid
topic Anomaly detection
concept drift
machine learning
smart grid
time series analysis
url https://ieeexplore.ieee.org/document/8604042/
work_keys_str_mv AT giuseppefenza driftawaremethodologyforanomalydetectioninsmartgrid
AT mariacristinagallo driftawaremethodologyforanomalydetectioninsmartgrid
AT vincenzoloia driftawaremethodologyforanomalydetectioninsmartgrid