Abstract: There are some problems such as communication delay, high sampling rate, and frequent controller updates in the networked microgrid system, the paper proposes a distributed coordination control method for a microgrid system based on event-triggered consensus algorithm, which combines the event-triggered method with the consensus algorithm. The distributed generation unit is an intelligent node in the distributed sparse network, and the state observer is designed using the consensus algorithm, and designs event-triggered conditions based on the state information of smart nodes. When an event is triggered, the observer transmits the actual state value to the controller, while also sharing the information to the neighbor controller. This control method requires the distributed controller to communicate when the event is triggered, effectively reducing the number of controller updates and minimizing thesystem’s requirements for network bandwidth. The stability of the control system was analyzed by the Lyapunov function. Finally, simulation platform is built by Matlab/Simulink simulation software to validate the proposed control method, demonstrating its robustness dynamic performance under communication delay.

Key words: microgrid, event-triggered consensus, multi-agent systems, distributed control, collaboration control