Method and device for acquiring photovoltaic access capacity of power distribution network based on flexible soft switch

The invention relates to a method for acquiring photovoltaic access capacity of a power distribution network based on a flexible soft switch. The method comprises the following steps: acquiring transformer parameters, line parameters, load parameters and photovoltaic access node parameters of the power distribution network; constructing a power distribution network photovoltaic access capacity model based on the flexible soft switch, taking the maximum photovoltaic access capacity as a target function, and determining a constraint condition of the photovoltaic access capacity; optimizing the photovoltaic access capacity model of the power distribution network by using a genetic algorithm to obtain the maximum photovoltaic access capacity of the power distribution network based on the flexible soft switch; the method considers the influence of the optimization control of the flexible soft switch on the improvement of the acceptance capability of the power distribution network, can effectively obtain the actual