Title :
Cooling Coil Unit dynamic control of in HVAC system
Author :
Jin, Guang-Yu ; Tan, Pek-Yew ; Ding, Xu-Dong ; Koh, Tien-Ming
Author_Institution :
Panasonic Singapore Labs. Pte Ltd., Singapore, Singapore
Abstract :
In this paper, a dynamic Cooling Coil Unit (CCU) model is firstly developed by extending the CCU engineering model [1], and by combining the model with the mass and energy balance equations. Unlike other existing CCU models for dynamic control, this modeling method with only six model parameters is relatively simple and exactly captures the nonlinear characteristics over a wide operating range of CCU without requiring much calibration effort and geometric specification, which is very convenient in real time engineering control practice. Afterward, the nonlinear model of CCU is linearized using Jacobian matrix method and PID-action controller as linear control systems are developed on linear model to adjust the outlet air temperature and outlet chilled water temperature. Experiments on a centralized Heating, Ventilation and Air Conditioning (HVAC) pilot plant are conducted to show that the method is robust and gives an accurate match to real performance over the wide operating conditions.
Keywords :
HVAC; Jacobian matrices; three-term control; CCU engineering model; HVAC system; Jacobian matrix method; PID-action controller; cooling coil unit dynamic control; energy balance equations; linear control systems; linear model; mass equations; outlet air temperature; outlet chilled water temperature; real time engineering control; six model parameters; Atmospheric modeling; Coils; Cooling; Heat transfer; Mathematical model; Resistance heating; Water heating; Cooling Coil Unit; Heating; PID controller; Ventilation and Air-conditioning System; dynamic modelling;
Conference_Titel :
Industrial Electronics and Applications (ICIEA), 2011 6th IEEE Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-8754-7
Electronic_ISBN :
pending
DOI :
10.1109/ICIEA.2011.5975722