Flexible direct-current transmission real-time simulation system and simulation method thereof

The invention relates to a flexible direct-current transmission real-time simulation system and a simulation method thereof. The flexible direct-current transmission real-time simulation system comprises a real-time simulation platform, an A-set device and a B-set device. The A-set device comprises an A-set valve control device, an A-set valve control signal conversion device, an A-set converter valve control device, an A-set station control device, an A-set direct-current protection device, an A-set direct-current measurement and control device, an A-set alternating-current measurement and control device and a centralized wave recording device, wherein the real-time simulation platform is connected with the A-set valve control device through the A-set valve control signal conversion device, the A-set valve control device is connected with the A-set converter valve control device, the A-set converter valve control device is connected with the A-set station control device, and the real-time simulation platform is respectively connected with the A-set direct-current protection device, the A-set direct-current measurement and control device and the A-set alternating-current measurement and control device through a signal interface screen and connected with the centralized wave recording device. The B-set device and the A-set device are the same in composition and connected relation of the devices. According to the flexible direct-current transmission real-time simulation system, the steady state and transient characteristics of the flexible direct-current system can be precisely simulated.