Background: With respect to the problem of wind power and photovoltaic (PV) gridconnected
accommodation, a power system optimization dispatching method is proposed that introduces
a concentrating solar power (CSP) station to promote wind power and PV accommodation,
considering the dispatch-ability of the thermal storage system (TSS) and the accommodation
capacity of the electric heating device (EHD) in the CSP station.
Methods: The method analyzes an internal simplified model of a CSP station and a short-timescale
identification method of wind and PV power ramping events based on a CSP-Wind-PV system
structure. Furthermore, the operating characteristics and constraints of various units are considered
with the goal of the lowest comprehensive system cost to establish a CSP-Wind-PV optimization
model for dispatching power system.
Results: The method is simulated and verified on the IEEE-RTS24 node system by using the
MATLAB optimization toolbox.
Conclusion: The results demonstrate that the participation of a CSP station can decrease the number
of power ramping events and reduce the curtailment of wind and PV power while ensuring the
economical operation of the power system.