Method and system for acquiring zero-sequence impedance to ground of line section, storage medium and equipment

The embodiment of the invention discloses a method for acquiring zero-sequence impedance to ground of a line section, and the method comprises the steps: selecting any line as a first grounding line in a power distribution system; grounding any phase of the first grounding line; determining a to-ground parameter characteristic equation of each line section of a non-grounding line in the power distribution system; releasing the single-phase grounding state of the first grounding line; sequentially replacing other phases of the first grounding line to be grounded; obtaining a parameter characteristic equation set formed by each to-be-tested line section of the non-grounding line in the power distribution system; according to the parameter characteristic equation set, determining the zero-sequence impedance to ground of the split-phase section of the line; according to the method, the zero-sequence impedance to ground of the split-phase section of each line can be accurately obtained, accurate line parameters an