CROSS-SPACE CASCADING FAILURE ASSESSMENT METHOD, APPARTUS AND DEVICE

摘要

A cross-space cascading failure assessment method, apparatus and device. The method comprises: constructing a cross-space cascading failure attack graph, which comprises multiple attack paths (S11); calculating the total betweenness value of each attack path of the cross-space cascading failure attack graph (S12); acquiring a first power before cross-space cascading failure and a second power after cross-space cascading failure (S13); calculating, according to the first power and the second power, the power loss factor of a primary side of a power system caused by the cross-space cascading failure corresponding to each attack path (S14); calculating the harmfulness factor value of each attack path according to the total betweenness value of each attack path and the power loss factor of the primary side of the power system caused by the cross-space cascading failure corresponding to each attack path (S15); and sorting multiple harmfulness factor values, and assessing, according to the sorting result, the extent of the harm of the cross-space cascading failure corresponding to each attack path (S16).