冰蓄冷不同工况的综合能源系统规划优化研究

Research on Integrated Energy System Planning Optimization of Ice Storage and Different Working Conditions

主要研究冰蓄冷系统两种不同工作模式对综合能源系统规划优化的影响与规划优化方法。首先,结合电锅炉、地源热泵与冰蓄冷系统等设备构建综合能源系统网络结构;其次,建立设备出力,采用遗传算法进行综合能源系统规划设计;最后,以北方某一园区为例,得到综合能源系统园区按照冰蓄冷全部融冰工况运行工况规划的设备最优配置,并分析峰谷电价差与运行方案选择之间的关系。

This paper mainly studies the impact of two different working modes of ice storage system on integrated energy system planning and optimization methods.Firstly,the integrated energy system is planned and designed with electric boilers,ground source heat pumps and ice storage systems,and the network structure of the integrated energy system is constructed.Secondly,the paper establishes the equipment output model and energy balance constraints,takes the lowest total investment in life cycle as the optimization objective,and uses genetic algorithm for planning and design.Finally,taking a northern park as an example,the optimal equipment allocation of the integrated energy system park is obtained according to the operating conditions of ice storage and ice melting,and the relationship between peak-valley price difference and operation scheme selection is analyzed.The results show that when the price difference between peak and valley is small,the system chooses ice storage partial ice melting operation conditions for planning and design.