Research on Control Strategy of C-NPC for DC Distribution Network

The article draws on the concept of high-voltage flexible and direct system control factoring, based on the application scenarios of distribution networks, combined with the characteristics of cascaded three-level converter systems, proposing a control strategy based on the topology structure of cascaded three-level converters. This control strategy adopts a layered design architecture and incorporates the concept of dynamic matching between power source and load, dynamically matching master-slave control systems. It features strong system control logic, fast load matching speed, and high redundancy in the main control system.