METHOD AND SYSTEM FOR DETERMINING TRANSIENT POWER ANGLE STABILITY WEAK LINE OF REGIONAL POWER GRID

摘要

Disclosed are a method and system for determining a transient power angle stability weak line of a regional power grid. The method comprises: acquiring line information of each line of a regional power grid and information of a bus connected to each line of the regional power grid (S1); calculating vulnerable factor matrices LEF of faulty lines according to different set line faults; and taking a fault, corresponding to the maximum value in the ranking of absolute values LEF' of the vulnerable factor matrices, in the vulnerable factor matrices LEF as the most serious fault, and taking a line, corresponding to the maximum value in the ranking of the absolute values LEF' of the vulnerable factor matrices, in the vulnerable factor matrices LEF as the weakest line.