Self-adaptive inter-phase distance setting value calculation method based on photovoltaic capacity

A self-adaptive inter-phase distance setting value calculation method based on photovoltaic capacity comprises the steps of drawing a composite sequence network diagram according to a power distribution network structure, simplifying the composite sequence network diagram, drawing a voltage vector diagram, analyzing the relation between the composite sequence network diagram and the voltage vector diagram, then building a simulation model, analyzing photovoltaic capacity and voltage, obtaining the change trend and relation, then calculating the measured impedance of a previous line, and calculating the set value of the inter-phase distance. Obtaining and simplifying a branch coefficient, obtaining a voltage component containing a positive sequence, calculating a relation between the branch coefficient and the photovoltaic capacity in combination with the linear relation and the voltage component containing the positive sequence, calculating a phase-to-phase distance branch coefficient capable of being adaptiv