Abstract
In view of the current operating constraints and environmental pollution problems of traditional units, in this article, oxygen-rich combustion capture technology is introduced to transform gas-fired units, demand response technology is used on the load side, the energy conversion equipment such as power-to-gas equipment is combined to form an integrated energy system, and then, a low-carbon optimization approach of the integrated energy system is proposed. First, the system architecture is constructed, and a model with an oxygen-rich combustion unit and integrated demand response is established. Second, a power-to-gas equipment model considering reaction waste heat utilization and oxygen recovery is established. Finally, a stepped carbon trading mechanism is introduced to establish a low-carbon economic scheduling model for the integrated energy system with the goal of minimizing the operating cost of the integrated energy system. The simulation results show that the total cost and carbon emissions of the integrated energy system are reduced by 6.44% and 44.24%, respectively, under this model. At the same time, the operation adjustment capability and the oxygen production efficiency of the internal units of the system are improved.
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