计及P2G-CCS和柔性负荷的综合能源系统低碳经济调度

IES low-carbon economic scheduling considering P2G-CCS and flexible loads

为了降低系统的碳排放量和挖掘用户侧负荷参与系统调度的响应能力,文中提出一种含P2G-CCS和柔性负荷的综合能源系统日前低碳经济调度模型。首先,引入P2G-CCS-燃气供热系统协作的运行框架,P2G设备利用捕集到的CO_(2)作为原料,生成的天然气输送到燃气供热系统;其次,考虑用户侧负荷的可平移、可转移、可削减负荷特性,通过分时电价和分时气价引导柔性负荷参与调度;最后,建立以总运行成本为最小的综合能源系统日前优化调度模型,仿真算例使用CPLEX进行求解。通过3种场景对比分析得出,P2G-CCS和柔性负荷的运行策略能有效降低系统的碳排放,提升系统运行的经济性,实现了综合能源系统低碳经济运行。

In order to reduce the carbon emissions of the system and explore the response ability of the user side load to participate in the system scheduling,an integrated energy system(IES)day-ahead low-carbon economic scheduling model with P2G-CCS(power to gas and carbon capture system)and flexible loads is proposed. The P2G-CCS-gas heating system cooperative operating framework is introduced. In the P2G equipment,the captured CO_(2) is used as raw material to generate natural gas and deliver it to the gas heating system. Considering the translatable,transferable and reducible load characteristics of the load on the user side,the flexible load is guided to participate in the scheduling by means of time-of-use electricity price and time-ofuse gas price. The day-ahead optimal scheduling model of IES with the minimum total operating cost is established,and CPLEX is used to solve the simulation example. After the comparative analysis of three scenarios,it is concluded that the operation strategy of P2G-CCS and flexible load can effectively reduce the carbon emissions of the system,improve the economy of the system operation,and realize the IES low-carbon economic operation.