以重庆市某小型能源站设计为例,利用TRNSYS模拟软件模拟了建筑群的逐时冷热负荷,得到了能源站的逐时负荷和负荷率分布,并分析了建筑群的负荷特征。根据负荷率的分布,以全年运行费用及全寿命周期费用为目标函数,对冷热源方案进行了优化设计。结果表明,对于该能源站,采用以离心机+直燃机为冷热源的方案全寿命周期费用较低。 Taking the design of a small energy station in Chongqing as an example, the time-dependent hot and cold loads of buildings were simulated by TRNSYS simulation software, and the hourly load and load rate distribution of energy stations were obtained. The load characteristics of buildings were also analyzed. According to the distribution of load rate, the optimal design of cold and heat source scheme is made with the annual running cost and full life cycle cost as the objective function. The results show that, for the energy station, the use of centrifuge + direct combustion engine as a hot and cold source of the program full life cycle costs lower.