Event Detection in Micro-PMU Data: A Generative Adversarial Network Scoring Method
This addresses event detection in power distribution circuits, offering a data-driven solution with minimal human intervention, though it appears incremental as it builds on existing GAN-based anomaly detection with feature enhancements.
The authors tackled event detection in micro-PMU data streams by proposing two unsupervised deep learning methods based on Generative Adversarial Networks, which highly outperformed a state-of-the-art statistical method in accuracy, with the enhanced method also surpassing the basic one.
A new data-driven method is proposed to detect events in the data streams from distribution-level phasor measurement units, a.k.a., micro-PMUs. The proposed method is developed by constructing unsupervised deep learning anomaly detection models; thus, providing event detection algorithms that require no or minimal human knowledge. First, we develop the core components of our approach based on a Generative Adversarial Network (GAN) model. We refer to this method as the basic method. It uses the same features that are often used in the literature to detect events in micro-PMU data. Next, we propose a second method, which we refer to as the enhanced method, which is enforced with additional feature analysis. Both methods can detect point signatures on single features and also group signatures on multiple features. This capability can address the unbalanced nature of power distribution circuits. The proposed methods are evaluated using real-world micro-PMU data. We show that both methods highly outperform a state-of-the-art statistical method in terms of the event detection accuracy. The enhanced method also outperforms the basic method.