Online Impedance Detection Method for Monitoring Equipment Aging in Low Voltage Distribution System

摘要

Line aging or equipment aging will affect the stable operation of low voltage distribution lines, but the aging of lines and equipment is often difficult to monitor. Based on the existing technology, this paper proposes an online impedance detection method, and predicts the aging degree of line or equipment by online monitoring technology. The line impedance of low voltage distribution system is monitored online of the data measured by smart meter. Finally, the accuracy of the proposed method is verified by the actual power grid model, which is of great significance to the stable operation of the power system.