Aiming at the dynamic characteristic difference of multi-energy flow coupling

multi-user interaction and uncertainty of high-penetration renewable energy

a precise control strategy of tie-line power for microgrid based on multi-agent system is proposed and the three-level control target is established to achieve the multi-agent interaction and distributed energy coordination. Based on the factors such as market price

fuel consumption

pollution emission and operation maintenance

the multi-objective optimization scheduling model of microgrid is designed to coordinate the distributed energy with different response speeds. Given the multi-agent system

the sparse communication network is constructed

and the average voltage and frequency information on the system is obtained by the consistency iterative algorithm. By optimizing the reference voltage and frequency of the droop control

the precise control of tie-line power is realized. In addition

just by communication between adjacent agents

the long communication delay problem in centralized control can be overcome.