Abstract
The power demand forecast for buildings can generate useful day-ahead predictions in power system planning and operation. However, the information in the forecast needs to be interpreted by a person with domain expertise. Moreover, automated interpretation of upcoming abnormal behaviors needs ground-truth labeling, but labels are not always available from power meter data. In this paper, we propose a novel Predictive Power Demand Analytics Methodology (PPDAM), based on deep neural networks and symbolic aggregate approximation, to predict the pattern profile of power demand in a building and upcoming normal (motif) and anomalous (discord) behaviors. The experimental results indicate that a power forecast could be mapped as different foreseeable demand patterns, each with a specific probability of occurrence. The reliability of anomaly prediction is evaluated by a classification test of which the accuracy is 88% and the F1 score is 87.38%. The outcomes of this work could provide building operators with a solution to derive latent information in power consumption data. The derived information could be used to improve the working conditions of the building’s power system.
Published Version
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