Optimal Operation of Concentrating Solar Power Station in Power System with High Penetration of Photovoltaic Generation

For coal-dominated power system, there’re difficulties in the adjustment ability with increase in photovoltaic (PV) permeability. Concentrating solar power (CSP) plant is a potential solar power generation worth studying to alleviate the influences of duck curve caused by high PV permeability. Because in CSP plant, the thermal storage device (TSD) can be dispatched flexibly and the unit controlled by TSD can regulate output quickly. If the advantages of CSP plant mentioned above are applied, the adjustment ability of high PV permeability power system can be enhanced. The effectiveness of the proposed method is verified by the simulation of IEEE-RTS24 node system. The simulation results indicate that the total cost, PV curtailment power and load loss power have been decreased after using the strategy proposed in this paper at the same PV permeability. Meanwhile, the duck curve can be smoothed to increase the maximum PV permeability.