Traceability analysis for low-voltage distribution network abnormal line loss using a data-driven power flow model

Autor: Zhiqing Sun, Yi Xuan, Yi Huang, Zikai Cao, Jiansong Zhang
Jazyk: angličtina
Rok vydání: 2023
Předmět:
Zdroj: Frontiers in Energy Research, Vol 11 (2023)
Druh dokumentu: article
ISSN: 2296-598X
DOI: 10.3389/fenrg.2023.1272095
Popis: The abnormal behavior of end-users is one of the main causes of abnormal line loss in distribution networks. The integration of a large amount of distributed renewable energy into a low-voltage distribution network (LVDN) complicates line loss analysis. Traceability analysis for abnormal line loss aims to identify the specific end-user responsible for the anomaly in line loss. This paper proposes, for LVDNs with incomplete topology and line parameters, a practical traceability analysis approach using a data-driven power flow model. A data-driven power flow model based on a neural network is first established to capture the power flow mapping relationship without topology and line parameter information. A backpropagation algorithm is then presented to correct the actual power consumption data according to the measured voltage data. By comparing actual power consumption data with measured power data, users with abnormal behavior can be accurately identified and tracked. Finally, the effectiveness of the proposed approach is verified by actual data.
Databáze: Directory of Open Access Journals