Abstract:Based on the summary of flexible DC technology and combined with the characteristics of Southwest China as well as the characteristics of low-voltage flexible DC technology and equipment level, the design and commissioning technical scheme of photovoltaic DC into flexible DC transmission project is introduced, and its feasibility is demonstrated. The research results fill in the blank of low-voltage flexible DC engineering design and system commissioning technology. It has a certain reference value for carrying out the construction of low-voltage flexible DC transmission and distribution project with new energy integration in China.