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Dynamic behaviour of building HVAC system for control analysis.

Comportamiento dinámico del sistema HVAC de un edificio para análisis del control.

Author(s) : WANG J., CHEN Z., SHI M.

Type of article: Periodical article

Summary

This article is the Spanish translation of an article presented at the 22nd IIR international Congress in Beijing, China (see the Bulletin of the IIR, reference 2008-0307). 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.

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Pages: 46-51 (5 p.)

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Details

  • Original title: Comportamiento dinámico del sistema HVAC de un edificio para análisis del control.
  • Record ID : 2009-0736
  • Languages: Spanish
  • Source: IIF-IIR/Frío Calor Aire acond. - vol. 36 - n. 406
  • Publication date: 2008/09

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