Accurate Modeling and Fault Analysis of MMC-HVDC System Connected with Offshore Wind Farms

MMC-HVDC system connecting offshore wind farms and the AC grid is a significant development direction in the future. Based on the actual engineering parameters and basic control strategy of the Rudong MMC-HVDC Project for offshore wind farms, accurate models of offshore wind farms, offshore converter stations, and onshore converter stations were established in the RTDS simulation environment. The simulation results show that the system has good dynamic performance under various fault conditions, which can be used as an effective tool for analyzing the MMC-HVDC system connecting offshore wind farms and the grid.