Method for calculating and planning maximum access installed capacity of each node of distributed photovoltaic power reverse transmission power distribution network

The invention discloses a method for calculating and planning the maximum access installed capacity of each node of a distributed photovoltaic power reverse transmission power distribution network, and the method comprises the following steps: S1, carrying out the effective processing of the photovoltaic output, load curve and the like of a region through collecting the basic data of the distributed photovoltaic access power distribution network; s2, determining a power generation efficiency function of different operation years of the distributed photovoltaic system; s3, constructing a solving function equation of the distributed photovoltaic access maximum allowable value of each node based on the maximum reverse transmission power and the maximum node voltage limitation, and carrying out solving; s4, according to the installed photovoltaic installed capacity and the installation age limit of each node, calculating the currently installable maximum installed capacity of each node; and S5, based on targets a