Energy storage peak load auxiliary service

How AA-CAES Auxiliary Service works?

PS auxiliary service In response to the demand for the seasonal peak load reduction, ESS is combined with thermal power units for deep PS. The participation of AA-CAES in PS can alleviate the supply-demand imbalance and improve the economical operation of the system.

Which auxiliary service market has a higher scheduling priority?

Research shown that in auxiliary service markets, the FR market has a lower capacity demand threshold, but the return on investment is considerable. Therefore, it often has a higher scheduling priority . In FR markets, Bahloul et al. adopted a hybrid power sharing method to optimize the fast frequency response performance of HESS.

Can EV aggregation participation improve the ancillary service market responsiveness?

Finally, taking EV aggregation participation in the valley-filling ancillary service market as an example, it is verified that the strategy proposed in this paper can effectively improve the responsiveness of EV participation in the ancillary service market and increase the revenue of electric vehicle aggregator (EVA).

What is SFR Auxiliary Service?

SFR auxiliary service When the system frequency stability requirement cannot be met after FCR, the Automatic Generation Control System (AGC) sends instructions to market participants, providing SFR to handle slower frequency fluctuations and ensure the FR capability of the system.

What is the difference between Hess and SFR Auxiliary Service?

Multi-time scale decoupling The day-ahead allocation capacity for HESS is optimized every 15 min, while SFR auxiliary service must consider the dynamic process from a few seconds to a dozen seconds after the disturbance occurs.

What are the results of SFR standby capacity calculation?

Simultaneously, the results of SFR standby capacity calculation are mostly distributed in the high value range and limited by the minimum FR capacity with considerably few minimum values, which is because most of the capacity is reserved for SFR. 60–90 % of the HESS capacity is reserved for SFR.