Capacitance current segmentation compensation calculation method and system

The invention relates to the field of power system protection control, and discloses a capacitance current segmentation compensation calculation method and system. According to the scheme, a long line is divided into a plurality of segments of short lines, and voltages and currents at the two end points of the long line are collected; calculating the voltage at an adjacent endpoint according to the linear distribution of the voltage along the line by using the known voltage and current at a certain endpoint on the short line; capacitance current on the corresponding short circuit is calculated according to the voltages at the two end points of the short circuit; calculating the current at the other end point of the short circuit according to the current at one end point of the short circuit and the capacitance current of the short circuit until the capacitance current on each section of the short circuit is calculated; and then compensating the capacitance current on each section of short line section by sect