Real-time parameter estimation of dynamic temperature models for greenhouse environmental control

Cunha, J. B.; Couto, C.; Ruano, Antonio

http://hdl.handle.net/10400.1/2181

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Authors

Cunha, J. B.

Couto, C.

Ruano, Antonio

Abstract(s)

For a greenhouse located at UTAD-University, the methods used to estimate (in real-time) the parameters of the inside air temperature model will be described. The structure and the parameters of the climate discrete-time dynamic model were previously identified using data acquired during two different periods of the year. Several experiments showed that the second-order models identified achieve a close agreement between simulated and experimental data. Later, it was found that parameters change with varying operational conditions. Thus, for an efficient use of these models in real-time control, a recu~ive identification technique was implemented for the estimation of the parameters.

Keywords

Agriculture Dynamic models Identification algorithms Parameter estimation Real-time

URI

http://hdl.handle.net/10400.1/2181

Citation

Boaventura Cunha, J.; Couto, C.; Ruano, A. E. Real-time parameter estimation of dynamic temperature models for greenhouse environmental control, Control Engineering Practice, 5, 10, 1473-1481, 1997.