含光热复合压缩空气储能的分布式综合能源系统容量规划方法

Capacity Planning Method of Distributed Integrated Energy System with Solar Thermal Composite Compressed Air Energy Storage

分布式综合能源系统(DIES)的大力发展,对促进清洁能源消纳、提升综合能源利用水平起到了关键作用。该文基于青海地区丰富的太阳能资源,考虑DIES的热、电耦合特性,将光热复合先进绝热压缩空气储能(ST-AA-CAES)作为其能源枢纽,提出了基于ST-AA-CAES的DIES。首先,面向农业园区应用场景,提出了DIES设计方案,并刻画了其各子系统的运行约束模型;其次,以系统最小化整体投资运行成本为目标函数,建立了其容量规划模型;进一步,对所建约束模型进行线性等价转换,转换为便于商业求解器求解的混合整数线性规划模型;最后,通过算例验证了所提模型的有效性。

The development of distributed integrated energy system(DIES)has played a key role in promoting clean energy accommodation and improving comprehensive energy utilization.Based on the abundant solar energy resources and the characteristics of the thermal and electrical coupling DIES in the Qinghai area,this paper proposed a solar thermal composite advanced adiabatic compressed air energy storage(ST-AA-CAES)as an energy hub in DIES.Firstly,DIES was proposed for application scenario of agricultural parks,and the operation constraint model of its subsystems were described.Secondly,the capacity planning model of the DIES,with minimizing the overall investment and operating cost as objective function,was established.The constraint of optimization model can transform into a mixed integer linear programming model,which can be solved by commercial solver.Finally,the effectiveness of proposed model was verified by the study case.