First, the energy storage capacity requirements is analyzed on the basis of the transformer overload requirements, and analyzing the correspondence between different capacities of energy storage and transformer expansion capacities.
Therefore, scheme 3 (coordinated planning of energy storage and transformer capacity) has the best effect. 5.3.2. Economic benefit analysis of DES economic dispatching model
The results show that the coordinated planning method proposed in this paper can greatly reduce the investment cost, and the net cost of the coordinated planning scheme is reduced by 17.558 million yuan compared with the scheme of separate configuration for energy storage, which effectively improves the economics of energy storage configuration. 1.
It can be seen that appropriate energy storage capacity allocation highlights economic benefits. Therefore, the scheme of coordinated configuration of DES and transformer capacity is the optimal overall economy.
Literature , , proposed that distributed energy storage with its characteristics of flexible throughput power and fast response to energy, can effectively solve the problems of uneven distribution of DG in space and time and insufficient absorption capacity of distribution network.
Conclusion This paper aims at the problem of distribution network transformer overload operation caused by small output of DG, a two-layer optimal allocation method for DES and transformer capacity is proposed. The method coordinates the configuration of DES and transformer capacity.
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