Mathematical model and dynamic characteristics of room temperature hysteresis response for variable air volume air conditioning system

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.