Characteristics Analysis and Simulation Testing on Modular Multilevel Converter VSC-HVDC Based on RTDS

Real-time simulation on the Modular Multilevel Converter (MMC) VSC-HVDC is one of the most important and difficult technologies in the area of power electronics research. After introduction and analysis on the RTDS simulation technologies for MMC VSC-HVDC study, this paper sets up the simulation model for MMC VSC-HVDC with inter control and researches on its operation and fault characteristics. Moreover, the simulation and testing system for MMC VSC-HVDC with physical control is also set up. The testing result should that, the voltage balancing method and phase disposition (PD) control strategy of the physical MMC control system perform well duing the test.