School of Electrical Engineering, Xi'an Jiaotong University, Xi'an 710049, China

This paper focuses on the flexible dispatching and control problem of large-scale distributed power supply connected to the distribution network and investigates the multi-agent fully distributed control method supporting the dynamic virtual microgrid cluster operation mode of the active distribution network. The active distribution network frequency and voltage can be recovered during the dynamic evolution of the virtual microgrid cluster structure. The method can realize and maintain the load state balance of the energy storage system at microgrid level, and also realize the cooperative control of load state balance at the microgrid cluster level. To cope with the problems of control system reset and adjustment caused by the dynamic change of virtual microgrid structure, which is a flexible operation method, the control is realized based on a multi-agent and fully distributed communication network. This paper designs a distributed control method that can achieve dynamic cooperative control at the microgrid level and microgrid cluster level by relying only on the same distributed communication network, which is achieved by forming a virtual distributed communication network among multiple multi-agents in the physical communication network. Finally, the effectiveness of the proposed method is verified by using the IEEE 34-bus distribution network test system.