Abstract
In recent years, the high percentage of wind power accessibility in Northwest China has worsened the dilemma of peak regulation and spinning reserve in the power system, frequently resulting in wind abandonment. Therefore, a concentrated solar power (CSP) plant equipped with an electric heater (EH) is implemented to join the peak regulation, and the joint peak regulation strategy between thermal power units (TPUs) and a CSP plant is proposed. Firstly, the peak regulation principle of a CSP plant with EH is analyzed in detail. The CSP plant is divided into load mode and power source mode of peak regulation, and mathematical models of the two modes are established. Secondly, the effectiveness of joint peak regulation of TPUs and CSP plants with EH is analyzed, and the principle of low-carbon power supply during peak and off-peak periods is analyzed in the proposed strategy. On this basis, the ladder carbon trading mechanism is introduced to quantify the low-carbon level of the system, and an economic scheduling model considering the operation cost of the system is established to determine the optimal schedule. The results suggest that the proposed scheme can improve the operational efficiency of the system and create more consumptive space for wind power by utilizing the flexible operating potential of a CSP plant.
Published Version
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