DYNAMIC BEHAVIOR OF VARIABLE WATER VOLUME HVAC SYSTEM
The dynamic models of variable water volume (VWV) HVAC system are established in this paper. The models including rooms thermal balance and dynamic behavior of HVAC system are used to predict the effect of inlet air temperature, air flow rate, and inlet chilled water temperature on the room temperature accurately. During closed loop control of output air temperature, chilled water flow rate is used as a control input. Variable water volume (VWV) is control by fuzzy adaptive control (FA) combined with proportional integral derivative (PID) control algorithms (FA-PID). Computational simulations of two different control algorithms PID and FA-PID control are carried out in toolbox Simulink of Matlab. The fuzzy parameters are carefully tuned to control indoor parameters with less oscillatory responses. The results show that the system based on FA-PID control is capable of controlling the disturbance efficiently with less time lag and small error than PID control.
HAVC system Dynamic model VWV PID FA-PID
Zhenqian Chen Jing Wang Mingheng Shi
School of Energy and Environment, Southeast University, Nanjing 210096, China
国际会议
北京
英文
2007-09-07（万方平台首次上网日期，不代表论文的发表时间）