The application discloses a low-
voltage area house-phase-box-
transformer identification method and
system, comprising the following steps: based on the power
conservation principle, an optimization model is constructed, the similarity of the user electric meter power curve and the phase power curve of the meter box node is calculated, the user is distributed to the phase with the highest similarity, and the house-
phase correlation identification is completed; the electric meter address and the collected data are
read through the physical
communication interface between the low-
voltage measurement switch and the user electric meter. The method disclosed by the application fuses multi-
source data, fully utilizes the steady-state data and address information of the electric meter, and innovatively proposes a load transient event, so that the box-
transformer identification accuracy is improved through the strong features of the
signal of the load transient event; the meter box node is taken as an intermediate node, the house-
phase relationship identification is realized through the steady-state power conservation, the box-
transformer relationship identification is realized through the load transient event, and the calculation is simple and the identification accuracy is high.