The first domestic high-voltage AC/DC hybrid power grid demonstration project started construction in jiangsu on the 25th, which will further expand the application of AC/DC hybrid power grid technology and help accelerate the construction of a clean, low-carbon, safe, and efficient new energy system. It is understood that the main grid of China's electrical system is mainly composed of AC power grids. Compared with AC transmission, DC transmission at the same voltage level has a higher power transmission capacity and lower power loss. In August of this year, the National Development and Reform Commission and the National Energy Administration jointly issued an implementation plan for large-scale equipment updates in key energy areas, mentioning the promotion of advanced technologies such as AC/DC hybrid power grids research and application.