Abstract：To address the seasonal imbalance of renewable energy and the challenges of low- carbon transition for coal-fired units under the carbon peaking and carbon neutrality goals, this paper proposes a capacity optimization model of integrated energy systems based on seasonal ammonia storage and flexible carbon reduction in coal-fired units. First, a cross-seasonal energy storage system using ammonia as the medium is constructed. Second, a coordinated operation mechanism for green ammonia co-firing in coal-fired units and liquid-based carbon capture is established to enhance the flexibility and deep decarbonization capability of the units. Finally, under a tiered carbon trading mechanism, the optimal capacities of energy storage and carbon capture are determined with the goal of minimiz-ing the system's comprehensive cost. Simulation results show that ammonia storage can reduce the total system cost by 11.57% compared to hydrogen storage, making it an economically viable seasonal energy storage solution. The synergy of ammonia co-firing and liquid-based carbon capture can reduce carbon emissions by 69.77%, significantly improving system flexibility and low-carbon performance.
刘斌, 张宁, 吴奇彬. 基于季节性储氨与燃煤机组灵活降碳的综合能源系统容量优化[J]. 电气技术, 2026, 27(5): 28-37.
LIU Bin, ZHANG Ning, WU Qibin. Capacity optimization of integrated energy systems based on seasonal ammonia storage and flexible carbon reduction in coal-fired units. Electrical Engineering, 2026, 27(5): 28-37.
2026, Vol. 27 
