应用于分布式能源系统的设备选择和容量配置模型

Equipment Selection and Capacity Allocation Model for Distributed Energy Systems

提出了一种通用的分布式能源系统设备选择方法,建立了分布式能源系统中常用设备的数学模型,以年总费用最优为目标,利用GAMS软件对模型中的设备容量进行求解,对有无蓄能设备的分布式能源系统进行经济性分析。以天津市某办公楼为实例验证了模型及求解方法的有效性,结果表明:系统规划时考虑蓄能设备可以优化供能设备的容量配置,使系统的初投资降低9. 13%;在分时电价体系下,增加蓄能设备的系统可使年总运行费用降低4%。

In order to propose a general method for selecting equipment for the distributed energy system,a mathematical model of equipment commonly used in distributed energy systems is established with the optimal annual cost as the goal. The GAMS software is used to solve the equipment capacity in the model. Economic analysis of distributed energy systems with or without energy storage equipment is carried out. The model and the solution method are verified by an office building in Tianjin. The results show that the energy storage equipment can optimize the capacity allocation of the energy supply equipment during system planning,which reduces the initial investment of the system by 9. 13%. Under the timesharing electricity price system,the system of adding energy storage equipment can reduce the annual total operating cost by 4%.