Power distribution network optimization method and device for improving photovoltaic acceptance capability

The invention relates to a power distribution network optimization method and device for improving photovoltaic acceptance capability, and the method comprises the steps: setting a plurality of groups of candidate power distribution network topologies and a plurality of groups of candidate passive filters, and carrying out the network evaluation of a power distribution network for the current candidate power distribution network topology and the current candidate passive filter based on the first-stage photovoltaic permeability and different load levels; increasing the photovoltaic permeability step by step, performing network evaluation on the power distribution network according to different load levels until the power distribution network violates network constraints or reaches the allowable maximum photovoltaic capacity, and storing the current photovoltaic permeability; and outputting an optimal combination of the candidate power distribution network topology and the candidate passive filter, wherein the