Detection Method for Three-Phase Electricity Theft Based on Multi-Dimensional Feature Extraction

• Published in: Sensors (Basel, Switzerland) Vol. 24; no. 18; p. 6057
• Main Authors: Bai, Wei, Xiong, Lan, Liao, Yubei, Tan, Zhengyang, Wang, Jingang, Zhang, Zhanlong
• Format: Journal Article
• Language: English
• Published: Switzerland MDPI AG 19.09.2024; MDPI
• Subjects: Accuracy; Automation; Catch22-Conv-Transformer; data mining; Datasets; Electric transformers; Electric utilities; Electricity; electricity theft; Energy consumption; Machine learning; Marketing research; Methods; Metric system; Nuclear energy; Nuclear power plants; Simulation; Smart meters; Theft; three-phase system; User behavior; China; United States > US; Catch22-Conv-Transformer; three-phase system; electricity theft; data mining
• ISSN: 1424-8220; 1424-8220
• DOI: 10.3390/s24186057

The advent of smart grids has facilitated data-driven methods for detecting electricity theft, with a preponderance of research efforts focused on user electricity consumption data. The multi-dimensional power state data captured by Advanced Metering Infrastructure (AMI) encompasses rich information, the exploration of which, in relation to electricity usage behaviors, holds immense potential for enhancing the efficiency of theft detection. In light of this, we propose the Catch22-Conv-Transformer method, a multi-dimensional feature extraction-based approach tailored for the detection of anomalous electricity usage patterns. This methodology leverages both the Catch22 feature set and complementary features to extract sequential features, subsequently employing convolutional networks and the Transformer architecture to discern various types of theft behaviors. Our evaluation, utilizing a three-phase power state and daily electricity usage data provided by the State Grid Corporation of China, demonstrates the efficacy of our approach in accurately identifying theft modalities, including evasion, tampering, and data manipulation.