The invention discloses a closed-
loop control method for the transient power angle
instability of a power
system, and the method comprises the steps: obtaining real-time measurement information from a
wide area measurement
system; determining a generator set to be deleted according to the real-time measurement information and an
inertia center of the power
system, and carrying out
machine switching control; continuously monitoring the operation state of the power system based on the
wide area measurement system; judging the stability of the power system according to a transient power angle
instability criterion; taking
machine-switching control measures if the power system is not stable till the power system is stable, thereby forming a closed-
loop control strategy, and improving the effectiveness of transient power angle
instability control measures of the power system.