Practical Receding-Horizon Optimization Control of the Air Handling Unit in HVAC Systems

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• 作者：Min Xu ; Shaoyuan Li ; and Wenjian Cai
• 刊名：Industrial & Engineering Chemistry Research
• 出版年：2005
• 出版时间：April 13, 2005
• 年：2005
• 卷：44
• 期：8
• 页码：2848 - 2855
• 全文大小：427K
• 年卷期：v.44,no.8(April 13, 2005)
• ISSN：1520-5045

文摘

This paper is concerned with air handling units (AHUs), the performances of which directlyinfluence those of heating, ventilation and air conditioning systems. An autotuning receding-horizon optimization method is proposed to synthesize a proportional-integral-derivative (PID)type controller for AHUs. This algorithm is composed of two levels of control. The lower leveladopts a conventional PID controller to obtain an acceptable, but not necessarily optimal,performance. The higher level provides optimal low-level controller parameters throughminimization of the generalized predictive control criterion. Because the method does not requirechanges in hardware and the definitions of conventional controller parameters, it can be botheasily accepted by process engineers and widely applied to industrial areas. Compared with theperformance of a well-tuned conventional PID controller, simulation and experimental resultsshow that the proposed method for AHU systems can achieve a better performance under awide range of operating conditions.