A Dynamic Allocation Method for Distributed Energy Storage Considering Distribution Network Evolution

With the high proportion of new energy access and the diversification of user-side energy supply and demand, the grid morphology and demand characteristics have undergone profound changes, which put forward higher requirements for distributed energy storage configuration. However, the current distributed energy storage configuration takes into account the current installed capacity of new energy as well as the load situation for energy storage siting and capacity setting, which is a static configuration, without considering the impact of the evolution of the distribution grid morphology on the energy storage configuration at the macro level of a longer time scale, which makes it difficult to match the future demand of the power grid. Therefore, this paper will focus on the distributed energy storage dynamic configuration method considering the evolution of the distribution network. Firstly, we analyse and summarize the evolution of the distribution network and look forward to provide scenario support for distributed energy storage planning; secondly, we consider distributed energy storage characteristics under typical distribution network architecture and establish distributed energy storage capacity configuration model; finally, based on the scenario and the model, we construct distributed energy storage dynamic configuration scheme considering the evolution of the distribution network, and we analyse the changing law of distributed energy storage in the process of the evolution of the distribution network.