Low Carbon Economic Dispatch of Integrated Energy Systems Considering Stepped Carbon Trading

Under the background of “double carbon”, an integrated energy system (IES) low-carbon economic operation strategy is proposed to improve energy utilization and further reduce the carbon emission level of the IES. Firstly, the carbon trading mechanism is introduced into the IES, and a stepped carbon trading calculation model is constructed to divide the carbon emission interval. Then, the carbon absorption characteristics of Power-to-Gas (P2G) access are considered, and the incentive mechanism for P2G to participate in carbon market trading is allowed to improve the actual carbon emission model. Finally, the low-carbon economic operation objectives and constraints are constructed to minimize the energy purchase cost, carbon emission cost, and abandoned wind penalty cost. By setting up several scheduling scenarios for analysis, the effectiveness of the carbon trading mechanism developed in this paper in the operation of the IES low-carbon economy is verified.