The distributed energy storage technology can effectively solve such problem as load peak-tovalley difference and voltage quality problems faced by the distribution network

and delay the equipment expansion of the distribution network.Reasonable and efficient scheduling of distributed energy storage in the distribution network is an important means to play its role.In this paper

a distributed energy storage optimization scheduling method for distribution network based on aggregation effect is proposed.Firstly

the power interval of the load is reasonably divided

and the variables required for the optimization period are reduced from the longitudinal directionand

at the same time

a reasonable power allocation method is adopted so to aggregate multiple energy storage into one equivalent energy storage

thus the multiple energy storage can be represented by one equivalent energy storage.Then

the optimal scheduling model with load fluctuation and voltage deviation is established respectively.Based on the relevant data of IEEE-33 distribution network nodes

the particle swarm optimization algorithm is used to solve the optimal scheduling model.It is shown by the calculation result that the proposed method can

at the time of reducing greatly the number of optimized variables reasonably schedule the distributed energy storage in the distribution network.