Distributed generations

constant power loads and load switching are common in energy storage systems and can reduce the damping of energy storage system of the DC microgrid and thus affect system stability. In view of this issue

in this paper a kind of fully distributed control strategy based on dynamic event-triggered composite output consistency is proposed to achieve accurate current sharing in the multi-bus DC microgrid system at DG

CPL

and load switching. Firstly

a state-space function model of the DC microgrid consisting of DG

battery

resistive loads

and CPL is constructed and is transformed into a standard linear heterogeneous multi-agent system to define dynamic characteristics of the system. Then

a cooperative control strategy based on dynamic event-triggered and composite output consistency is designed to achieve accurate current sharing of the system and such issues as difficult capture of global information of system communication topology and the limitation of communication band width in the actual operation scenario has been solved. Finally

the effectiveness of the proposed strategy is verified in the environmental experiment through the controller hard wire. The experiment result shows the strategy proposed in this paper can not only optimize the control effect of the system

but also have strong robustness.