Abstract:In recent years, extreme natural disasters and potential geopolitical conflicts have seriously threatened the stable and reliable operation of distribution networks. Traditional dynamic recovery areas (DRA) overlook the recovery potential of vast grid following resources and fail to clarify the multi-action stages of multi-inverter coordinated operation. A heterogeneous DRA partitioned dynamic coordinated operation framework is proposed. Firstly, grid-forming, grid-following, and hybrid grid-forming and following DRAs are defined. Multi-key action stages for fault recovery, including partition establishment, mode switching, and grid synchronization, are introduced. Then, based on the operational requirements of each stage, a dynamic collaborative control method for distributed converters and soft open point is designed. In secondary control, voltage/frequency-free recovery and power sharing variables are introduced to achieve stable operation within the partition, while seamless interaction variables for smart switch (SSW) and grid-connection switches are introduced to ensure smooth cross-partition interaction. Finally, a simulation model is built in MATLAB/Simulink to verify the feasibility and effectiveness of the proposed framework and control design. The results show that the proposed method can establish DRA voltage and frequency, equally distribute internal resource power, flexibly respond to commands from SSW and grid-connection switch, fully exploit the coordinated recovery potential of heterogeneous resources, and enhance the operational resilience of the distribution network.