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【摘要】 本文运用Matlab软件对保定市某百货大楼的中央空调系统进行了动态仿真,得出该大楼在2007年最热天的温度、功率及能耗曲线图,同时也得出了该空调系统的夏季运行总能耗。此外,应用当量满负荷运行时间法对该大楼的空调系统进行了能耗计算,并将这两种能耗计算结果与实际能耗值进行了对比分析。结果表明:Matlab/Simulink的动态仿真更接近于空调系统的实际运行情况。 【Abstract】 In this paper,the Matlab software was introduced to simulate the operation of a central air conditioning system of a department store in Baoding city.From the simulation process,the figures of indoor air temperature,power change and energy consumption in the hottest day of 2007 were obtained,as well as the figure of total energy consumption in the summer.In addition,the full load run time method was used to calculate the energy consumption of the air conditioning system,through the comparison and analysis between the calculated and the actual energy consumption,it is concluded that the dynamic simulation result is quite similar to the actual operation of the air conditioning system. 【关键词】 MATLAB; 动态仿真; 当量满负荷运行时间法; 能耗分析 【Key words】 Matlab; dynamic simulation; full load run time; energy consumption analysis