Control method, system and device of high-voltage direct-current controller and medium

The invention discloses a control method, system and device of a high-voltage direct-current controller and a storage medium, and aims to improve the dynamic response performance of a high-voltage direct-current power transmission system by optimizing controller parameters. According to the method, optimization of controller parameters is realized by taking a small-interference dynamic model of the high-voltage direct-current power transmission system as a basis and taking a PSO algorithm as a core. The step response waveform of the small-interference dynamic model of the high-voltage direct-current power transmission system is consistent with the step response waveform of a electromagnetic transient model, so that the limitation of long simulation time of the electromagnetic transient model can be avoided; a particle swarm optimization algorithm is used for optimizing the controller parameters of the high-voltage direct-current power transmission system, so that blindness and uncertainty of a trial and error