In this paper

a kind of optimization design method of particle swarm optimization（PSO）for additional damping controller（ADC）of static var compensator（SVC）is proposed. The similar PhillipsHeffron model of the single-machine infinite-bus including SVC multiple systems is set up and optimization design of related parameters of SVC additional damping controller is performed. In this method

the most optimization control principle is taken as a base

the performance of SVC additional damping controller and exciting system is considered comprehensively to convert the parameter design of the controller into the issue with constraint inequality. Moreover

2-machine testing system is set up through Matlab/Simulink and simulation verification is performed. It is shown by the simulation result that when the system encounters different fault and fluctuation

the designed SVC additional damping controller can suppress the low frequency oscillation of system well and improve transient stability of system.