VAV中央空调能耗建模与仿真研究

Study on Modeling and Simulation of Energy Consumption of VAV System

中央空调是一个复杂的非线性、时滞系统。中央空调系统在运行过程中存在着巨大的节能潜力,对中央空调系统的节能优化研究应以中央空调的能耗模型为基础。根据VAV中央空调各设备的能耗数学模型,并综合考虑VAV中央空调各设备之间的耦合关系,利用matlab中的simulink工具箱建立了反映VAV中央空调运行过程中各变量与系统能耗之间关系的仿真模型进行仿真,并对仿真结果进行了分析验证。模型可以用于对中央空调节能的参数优化研究中,对中央空调的节能优化控制具有重要的意义。

The central air -condition is a non -linear system with time lag. There is a huge potential that the energy consumption of the central air - condition can be saved, and the energy simulink models are the basis of the energy - saving research. According to the energy mathematical models and the coupling of different types of equipment in the VAV system, the simulink tool box of Matlab is used to build the simulink models that reflect the relationship between the different variables and the energy consumption of the system when the VAV system is running. The result of the energy consumption simulation is analyzed and validated in this paper. At last, the model built can be used to research the optimization of VAV system＇ s parameter in the purpose of energy saving, and it has important meanings to the control of the system.