Considering the flexible potential and cost factors, the capacity of energy storage equipment can be reasonably determined in accordance with SSES and SES. The capacity of electricity storage equipment is closely related to the installed capacity of a renewable energy system.
Conclusions This article studies the allocation of energy storage capacity considering electricity prices and on-site consumption of new energy in wind and solar energy storage systems. A nested two-layer optimization model is constructed, and the following conclusions are drawn:
The capacity of electricity storage equipment is closely related to the installed capacity of a renewable energy system. Presenting a PV power generation system as an example, the installed capacity of PV power generation and the storage capacity of the battery must match each other.
Therefore, capacity allocation of the energy storage is required to balance the requirements of both aspects. For capacity allocation, the capacity of energy storage equipment determines its ability to effectively stabilize wind power fluctuations.
When configuring the energy storage capacity of the system, the energy storage configuration results of the typical day with the highest demand are considered the energy storage planning standard of the system.
Additionally, from the standpoint of capacity allocation, the battery's service life can be reasonably estimated according to its life attenuation mechanism, and the energy storage capacity allocation that meets the wind power smoothing requirements can be achieved in combination with the economic cost analysis.
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