PROJECT TITLE :

Unsupervised Detection of Abnormal Electricity Consumption Behavior Based on Feature Engineering

ABSTRACT:

In recent years, detecting anomalous electricity usage behavior has become increasingly important. Existing research, on the other hand, frequently concentrates on algorithm improvement while ignoring the process of obtaining characteristics. The best feature set, which reflects consumers' electricity usage patterns, has a big impact on the final detection results. Furthermore, obtaining datasets containing label information is difficult. This research proposes a feature engineering-based strategy for unsupervised identification of anomalous electricity consumption behavior. In the feature engineering process, the original feature set is first developed via brainstorming. The best feature set, which reflects the consumers' electricity usage habits, is then created by selecting features based on their variance and similarity. Then, in the abnormal detection step, a density-based clustering algorithm is utilized to detect abnormal electricity consumption behaviors, with the best clustering parameters obtained through iteration and assessment, paired with unsupervised clustering evaluation indexes. Finally, many conventional feature techniques are used to the load dataset of an industrial park in order to compare with the feature engineering described in this paper. The label information of abnormal behaviors is obtained by merging the original electricity consumption behavior detection findings with abnormal data injections in order to execute the evaluation. The proposed abnormal detection method has shown to be successful and generalizable, outperforming traditional feature strategies.