变风量空调系统室温滞后响应数学模型及动态特性研究
Mathematical model and dynamic characteristics of room temperature hysteresis response for variable air volume air conditioning system
摘要：
基于能量守恒定律和变风量空调房间的热工特性，建立了变风量空调房间室温变化动态响应数学模型，并分析了引起室温滞后响应的影响因素。通过阶跃响应试验获得了室温对风量调节机构的滞后动态响应特性。建立了室温对各执行机构滞后响应的辨识模型，通过Simulink对辨识模型进行了仿真。结果表明，辨识模型拟合度较高，可以较好地反映室温滞后响应特性。
Abstract：
Based on the energy conservation law and the thermal characteristics of variable air volume (VAV) air conditioning room, establishes a mathematical model of VAV room temperature dynamic response, and analyses the influencing factors of the room temperature hysteresis response. Obtains a hysteretic response characteristics of room temperature to airflow rate regulating actuators by step response tests. Establishes a hysteresis response identification model of room temperature to regulating actuators, and simulates the identification model by Simulink. The results show that the identification model has a higher fitting degree and can reflect the hysteresis response characteristics of room temperature well.
Keywords:variable air volume air conditioning system, room temperature, hysteresis response, mathematical model, dynamic characteristic, identification model