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Ingeniería Electrónica, Automática y Comunicaciones

versión On-line ISSN 1815-5928


GARCIA VAZQUEZ, Carlos Alberto; GONZALEZ SANTOS, Ana Isabel  y  PEREZ GARRIDO, Víctor. Methodology and validation algorithm for the identification of models in an air handling unit. EAC [online]. 2021, vol.42, n.1, pp.105-121.  Epub 17-Mayo-2021. ISSN 1815-5928.

In this work several mathematical models that describe the behavior of temperature and relative humidity in an air handling unit (AHU) are obtained and validated from real experimental data. System identification methodology is used assuming the linearity of the system within the range of operation of the key variables. System is decomposed in four subsystems according to the dependence of temperature and relative humidity variables with the control signals received by the three-way valve and the electric valve, actuators used to control the mentioned variables. Several linear structures were selected for parameter estimation, then the suitability of Box-Jenkins (BJ) structure to obtain models that relate the system variables was concluded. The methodology used is partially programmed, mainly parameters estimation and model validation steps, allowing the best models to be easily selected from a group of candidate models to represent the system.

Palabras clave : air handling unit; system identification; linear models; BJ structure; validation.

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