Analysis of the peak shaving effect of energy storage

Does es capacity enhance peak shaving and frequency regulation capacity?

However, the demand for ES capacity to enhance the peak shaving and frequency regulation capability of power systems with high penetration of RE has not been clarified at present. In this context, this study provides an approach to analyzing the ES demand capacity for peak shaving and frequency regulation.

Does heat release increase peak shaving capacity?

However, thermal efficiency is higher with the multi-steam source strategy, and peak shaving capacity improves with an increased steam split ratio. During heat release mode, higher peak shaving capacity is achieved when steam is matched with the grade of cold reheat steam.

How does peak shave pressure affect wind power?

As the penetration of wind power increases, the peak-to-valley (P-V) difference of the load also increases, resulting in the increase of the peak shaving pressure of the grid [ 2, 3 ]. When the peak shaving capacity is insufficient, the abandoned wind phenomenon will occur in low load periods.

Does ESS participate in grid peak shaving based on data-driven capacity demand analysis?

A novel capacity demand analysis method of the ESS participating in the grid peak shaving based on data-driven is proposed in this paper.

Why is peak shaving unbalanced?

Due to the cost of deep peaking of conventional units, the system needs a larger charging power provided by ES to participate in peak shaving when the power of RE is larger (e.g. Fig. 7 (Typical day 3 0:00 to 8:00 p.m.)). In this way, the charge and discharge of ES involved in peak shaving may be unbalanced.

How does heat release capacity affect peak promotion?

As heat release capacity increases, the peak capacity for promoting load also rises, expanding the control range of power generation load, and gradually shifting the thermoelectric characteristic curve upward. Furthermore, under the multi-steam source energy storage mode, the peak shaving and peak promotion capabilities are significantly enhanced.