Accurate locating method of abnormal low voltage split line loss based on redundancy check

In this paper, the measurement system based on low-voltage split-phase branch head measuring unit and low-voltage smart meter is constructed.Aiming at the power flow of typical single-phase topology, the particle swarm optimization algorithm is used to estimate parameter variables, and the calculation method of maximum threshold of low-voltage split-phase line loss is designed. Euclidean distance is used to calculate abnormal power consumption and locate abnormal users.