Energy storage capacity is over-allocated

Why is capacity allocation of energy storage necessary?

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 should energy storage capacity be allocated?

From hour 12 to hour 22, most of the capacity is allocated for other benefits. During the rest of day more capacity is allocated for regulation benefits. Hour 2 is an exception where it is optimal to charge the energy storage for future discharge needs. Top: the price data; bottom: allocation of energy storage capacity plot.

How does demand response affect energy storage capacity allocation?

As an important and flexible adjustment method, demand response has been introduced into the research of optimal allocation of energy storage. Kou et al. proposed to reduce the capacity allocation of energy storage by stimulating demand response, which improved the economy of grid-connected system.

Can energy storage capacity be allocated in wind and solar energy storage systems?

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:

How can energy storage capacity allocation be used in wind power smoothing?

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.

How does the operational state of the energy storage system affect performance?

The operational states of the energy storage system affect the life loss of the energy storage equipment, the overall economic performance of the system, and the long-term smoothing effect of the wind power. Fig. 6 (d) compares the changes of the hybrid energy storage SOC under the three MPC control methods.