基于碳捕集与液态CO2储能的综合能源系统优化调度

针对综合能源系统在新能源消纳方面的不足，提出一种基于碳捕集与液态CO2储能的综合能源系统。首先，分析了液态CO2储能实际运行特点以及碳捕集装置综合灵活运行方式的“削峰填谷”特性；其次，建立考虑液态CO2储能与碳捕集装置不同运行方式的综合能源系统；最后，以系统总运行成本最小为目标函数建立优化调度模型，并通过负荷率、能源利用率等评价指标衡量调度结果。算例分析表明，该优化模型可提高能源利用率，缓解系统调峰压力，实现系统运行的经济性和低碳性。

Optimal Scheduling of Integrated Energy Systems Based on Carbon Capture and Liquid CO2 Energy Storage

Aiming at the shortcomings of integrated energy system in renewable energy consumption，the paper proposes an integrated energy system based on carbon capture and liquid CO2 energy storage. Firstly，the actual operation characteristics of the liquid CO2 energy storage and the peak-load shifting characteristics of the carbon capture device with comprehensive flexible operation are analyzed. Then the integrated energy system is established considering different operation modes with the liquid CO2 energy storage and carbon capture device. Finally，an optimal dispatching model is established with the objective function of minimizing the total operating cost of the system， and the dispatching results are evaluated by the indexes of load rate and energy utilization rate. The example analysis shows that the optimization model can improve the energy utilization rate， relieves the pressure of system peak regulation，and realizes the low carbon economic operation of the system.