Method and device for determining short-circuit current of power distribution network, medium and electronic equipment

The invention discloses a power distribution network short-circuit current determination method and device, a medium and electronic equipment, and relates to the technical field of new energy power distribution, and the method comprises the steps: carrying out the calculation processing based on the output parameters and capacity parameters of all inverter power supplies in a target power distribution network architecture, obtaining a first boundary threshold value for stage division of the output current and the grid-connected point voltage of each inverter power supply; performing model construction based on a first boundary threshold value corresponding to the same inverter power supply, the capacity parameter and a predetermined second boundary threshold value to obtain each short-circuit current calculation model corresponding to the same inverter power supply; determining an admittance matrix based on the target power distribution network architecture, and constructing a node voltage equation based on t