Fault data processing method and system for eddy current self-driven voltage sag treatment device

The invention provides a fault data processing method and system for an eddy current self-driven voltage sag treatment device, and relates to the technical field of voltage sag treatment, and the method comprises the steps: receiving sag fault data of a plurality of segmented branches; receiving historical working data of the plurality of eddy current self-driven voltage sag treatment devices; marking a plurality of abnormal subsection branches according to the sag fault data and the historical working data; counting each abnormal subsection branch, the corresponding abnormal voltage sag frequency and a plurality of abnormal voltage sag currents; and if the abnormal voltage sag frequency corresponding to the target abnormal subsection branch is greater than a preset abnormal frequency threshold, matching corresponding to-be-replaced device model information in a preset device model database based on a plurality of target abnormal voltage sag currents corresponding to the target abnormal subsection branch. Acc