Chilled Water Temperature Control of HVAC System Using GPC Based Controller

Abstract:

This work proposes a generalized predictive control (GPC) based controller for the temperature of HVAC chilled water supply. In this paper, several models of evaporator are firstly introduced, wherein an identified black-box model is selected for the purpose of controller design. Based on this model, a GPC based controller is employed to obtain a satisfactory performance even with the presence of disturbance. The theoretical results show the stability of the closed-loop system and the performance of this scheme is compared with that of traditional PID controller under simulation environment.

• Periodical: Applied Mechanics and Materials (Volume 151)
• Pages: 626-631
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.151.626
• Online since: January 2012
• Authors: Qiang Ma, Jian Gang Lu, Qin Min Yang, Jin Shui Chen, You Xian Sun
• Keywords: Black-Box Model, Evaporator, Generalized Predictive Control (GPC)

References

[1] L. Perez Lombard, J. Ortiz, and C. Pout, A review on buildings energy consumption information, Energy and Buildings 40 (2008) 394-398.

DOI: 10.1016/j.enbuild.2007.03.007

[2] Min Xu, Shaoyuan Li, and Wenjian Cai, Practical receding-horizon optimization control of the air handling unit in HVAC Systems, Industrial & Engineering Chemistry Research 44 (2005) 2848-2855.

DOI: 10.1021/ie0499411

[3] Min Xu, Shaoyuan Li, Wenjian Cai, and Lu Lu, Effects of a GPC-PID control strategy with hierarchical structure for a cooling coil unit, Energy Conversion and Management 47 (2006) 132-145.

DOI: 10.1016/j.enconman.2005.03.012

[4] ASHRAE, ASHRAE handbook—fundamentals, American Society of Heating, Refrigerating and Air-Conditioning Engineers Inc (1997).

[5] Xudong Du, Wenjian Cai, Lei Jia, and Changyun Wen, Evaporator modeling – A hybrid approach, APPLIED ENERGY 86 (2009) 81-88.

DOI: 10.1016/j.apenergy.2008.04.005

[6] Visakha, Nanayakkara, Yasuyuki Ikegami and Haruo Uehara, Evolutionary design of dynamic neural networks for evaporator control, International Journal of Refrigeration 25 (2002) 813-826.

DOI: 10.1016/s0140-7007(01)00090-1

[7] D.W. Clarke, C, Mohtadi and P.S. Tuffs, Generalized predictive control, Part 1: the basic algorithm and Part 2: extensions and interpretation, Automatica 23 (1987 137-145.

DOI: 10.1016/0005-1098(87)90087-2

[8] J.A. Romero, J. Navarro-Esbri and J.M. Belman-Flores, A simplified black-box model oriented to chilled water temperature control in a variable speed vapour compression system, Applied Thermal Engineering 31 (2011) 329-335.

DOI: 10.1016/j.applthermaleng.2010.09.013

[9] Jixin Qian, Jun Zhao, and Zhuhua Xu, Predictive control[M], Chemical Industry Press, Beijing, 2007, pp.64-68.

[10] D.W. Clarke, Generalized predictive control, Automatica 23 (1987) 49-60.

[11] Jun Zhang, Yugeng Xu, Some stable result of Generalized predictive control system, Control Theory and Applications 15 (1998) 25-30.