Method for determining transient voltage stability control performance of generator excitation system

The invention discloses a method and system for determining the transient voltage stability control performance of a generator excitation system, and the method comprises the steps: determining the track sensitivity of different excitation parameters of a generator to a bus voltage, and analyzing the impact degree of each excitation parameter on the transient voltage stability of the system according to the track sensitivity; taking the maintenance of the transient voltage stability of the system as a constraint, carrying out the repeated valuing of each excitation parameter of the generator set in the value range of each excitation parameter according to a preset step length interval, and obtaining the minimum value of the bus voltage and the voltage recovery time of each excitation parameter after the fault of the power system under different values; determining the optimal value of each excitation parameter according to the minimum value of the bus voltage and the voltage recovery time; determining a trans