DYNAMIC BEHAVIER OF BUILDING HVAC SYSTEM FOR CONTROL ANALYSIS

摘要：

A procedure for deriving a dynamic model of an HVAC system is described in this paper. The system consists of a zone, cooling coils and fan. Room thermal balance model and dynamic model of HVAC control system components including sensor, cooling coils and ducts are established. This model accurately predicts the effect of inlet air temperature during closed loop control of output air temperature using chilled water flow rate as a control input. Fuzzy adaptive control (FAC) combined with proportional integral derivative (PID) control algorithms (FAC-PID) are used to control the chilled water flow rate. Computational simulations are carried out in toolbox Simulink of Matlab. The fuzzy parameters are carefully tuned to produce less oscillatory responses. The results show that the system based on FAC-PID control is capable of controlling the disturbance efficiently with less time lag and small error than the conventional PID control.

作者: Jing WANG Zhenqian CHEN Mingheng SHI

作者单位: School of Energy and Environment, Southeast University Nanjing, 210096, P. R. China

会议类型: 国际会议

会议名称: The 22nd International Congress of Refrigeration(第22届国际制冷大会)

会议地点: 北京

会议语种:英文

在线出版日期: 2007-08-21（万方平台首次上网日期，不代表论文的发表时间）