Transient voltage and power angle stability problem identification and safety and stability control method

A transient voltage and power angle stability problem identification and safety stability control method comprises the steps of S1, building a time domain simulation calculation model of a target power grid, and performing stability calculation on the time domain simulation calculation model of the target power grid; according to the result of the stability calculation, screening out a fault causing the transient instability of the target power grid, and determining the fault as a weak link of the target power grid; s2, identifying an instability mode of each weak link of the target power grid, determining a dominant problem of power grid instability, and analyzing stability characteristics of each weak link; and S3, respectively providing corresponding safety and stability control measures according to the stability characteristic of each weak link and the instability mode of the target power grid. According to the design, after a stability problem is discriminated, a corresponding control measure can be pro