冷链物流园区的能量互补协同蓄能系统运行优化

Operation optimization of energy complementary collaborative energy storage system in cold chain logistics park

冷链物流行业的快速发展促进了冷链物流园区的建设,园区可对冷、热、电等多形式能源进行生产、储存和分配,在“双碳”背景下,为了进一步优化冷链物流园区供能系统,采用多能协同运行优化与能量梯级利用来提高园区用能的可靠性。文章针对某冷链物流园区,提出一种涉及多能互补和能量梯级利用的综合能源系统优化调度方案,根据园区实际的设备需求,以日运行费用最低和冷、电负荷稳定度等优化目标,建立相应的供能模型,通过混合整数数学线性规划法,对模型进行求解。结果表明,该方法可实现园区以冷量为核心的能量协同互补,与原园区相比,运行费用可减少5.2%,系统冷负荷稳定度可增大约10%。

The rapid development of the cold chain logistics industry has promoted the construction of cold chain logistics park.The energy system of cold chain logistics park can produce,store and distribute various forms of energy such as cold,heat and electricity.To further optimize the energy system of cold chain logistics parks,the multi-energy collaborative operation optimization method and the energy cascade utilization method can be adopted.In this paper,an optimal scheduling scheme combining the multi-energy complement and the energy cascade utilization has been proposed for a cold chain logistics park.Considering the actual equipment demand of the park,an energy supply model has been established.The daily operating cost and the stability of the load were set as the optimization goal.The model was solved by the mixed integer mathematical linear programming method.The results showed that the combining scheme can realize the energy supply of the cold chain logistics park which centered on the cooling capacity.Compared with the original energy system,the operation cost can be reduced by 5.2%,and the stability of the cooling load can be increased by about 10%.