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PCA-Based Method for Detecting Integrity Attacks on Advanced Metering Infrastructure

Krishna, V.B., Weaver, G., Sanders, W.H.
Citation:

International Conference on Quantitative Evaluation of Systems (QEST 2015), LCNS vol. 9259, pp.70-85, Sept. 2015.

Visit Publisher Online Entry:
Abstract:

Electric utilities are in the process of installing millions of smart meters around the world, to help improve their power delivery service. Although many of these meters come equipped with encrypted communications, they may potentially be vulnerable to cyber intrusion attempts. These attempts may be aimed at stealing electricity, or destabilizing the electricity market system. Therefore, there is a need for an additional layer of verification to detect these intrusion attempts. In this paper, we propose an anomaly detection method that uniquely combines Principal Component Analysis (PCA) and Density-Based Spatial Clustering of Applications with Noise (DBSCAN) to verify the integrity of the smart meter measurements. Anomalies are deviations from the normal electricity consumption behavior. This behavior is modeled using a large, open database of smart meter readings obtained from a real deployment. We provide quantitative arguments that describe design choices for this method and use false-data injections to quantitatively compare this method with another method described in related work.

**Received Best Paper Award, QEST 2015**

Publication Status:
Published
Publication Type:
Proceedings
Publication Date:
08/22/2015
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