We put forward an optimal scheduling model for scheduling the interconnected microgrids system in local distribution network. First

the operation status of distribution network was improved by the distribution network scheduling layer by coordinating the interactive power between each microgrid and distribution network. Then

a production plan was made by microgrid layer according to the results of the distribution network layer

and a stepwise power correction strategy was established based on the state of charge（SOC） of the energy storage system to ensure the scheduling ability of the energy storage system. Finally

the modified flower pollination algorithm（FPA） with strong global search ability was adopted to solve the optimal scheduling model of distribution network layer

and the IEEE-14 bus system was used as an example for simulation analysis. The results show that the initial population quality and convergence speed of the modified FPA are improved; the network loss of the distribution network and the fluctuation of the interaction power between each microgrid and distribution decrease; the SOC of each energy storage system remains in the 0.25～0.6. The research results prove that the optimal scheduling model is grid-friendly and the modified FPA is effective

and the stepwise power correction strategy can be adopted to ensure the continuous scheduling ability of each energy storage system.