AC/DC Flexible Distribution Networks for New Power Systems

The document discusses the urgent need for AC/DC flexible distribution networks to address challenges from high-proportion distributed photovoltaic integration in new power systems, particularly in Shandong, China. It highlights issues like supply-demand imbalance, voltage violations, reverse power flow, and fire risks due to uncontrollable renewable output and rigid traditional grids. The solution involves DC-based flexible distribution networks that enable safe, efficient accommodation of massive distributed energy, support multi-level coordination, and facilitate digital transformation. Key components include DC converters, energy routers, smart control systems, and energy storage. The document aligns with China's dual carbon goals and policies for building a clean, low-carbon, flexible, and intelligent power distribution system by 2030.