MMC flexible direct-current control device testing system and method based on RTDS

The invention relates to an MMC flexible direct-current control device testing system and method based on an RTDS. The MMC flexible direct-current control device testing system comprises a real-time emulation workstation (16) for building an MMC flexible direct-current system model, an RTDS real-time digital simulator PB5 processing board card (17), a real-time digital simulator GTFPGA processing board card (18), an analog quantity output board card (19), a digital quantity output board card (20), a digital quantity input board card (21), an MMC flexible direct-current valve level control device (22), an MMC flexible direct-current station level control device (23) and an MMC flexible direct-current system level control device (24). The testing system is flexible in test, accurate and effective, and the testing method is simple, practical, flexible and convenient to operate.