Single-phase capacity-regulating transformer modeling analysis method and system

The invention discloses a modeling analysis method and system for a single-phase capacity-regulating transformer, and relates to the technical field of transformers, and the method comprises the steps: calculating per unit values of parameters of a winding and an iron core of the single-phase capacity-regulating transformer; establishing a transformer body and capacity-regulating switch model of the single-phase capacity-regulating transformer; and simulating and analyzing parameter changes before and after capacity regulation of the transformer. According to the modeling analysis method for the single-phase capacity-regulating transformer, the accuracy of the simulation model is improved, the process of capacity-regulating analysis of the transformer is simplified, the analysis efficiency is improved, a reliable simulation tool is provided for design, optimization and operation of the transformer, the controllability and reliability of the capacity-regulating process of the transformer are improved through s