Towards step-wise safe switching climate control for a greenhouse

Author

Koumboulis, Fotis N. ; Tzamtzi, Maria P.

Author_Institution

Dept. of Autom., Halkis Inst. of Technol., Halkis

fYear

2008

fDate

15-18 Sept. 2008

Firstpage

1400

Lastpage

1407

Abstract

The application of multivariable step-wise safe switching controllers (MSWSS) for climate control of a greenhouse is presented. The system of the greenhouse is described by a simplified model, incorporating heating and natural ventilation. The advantages of applying MSWSS on the greenhouse are presented and the performance of the algorithm is illustrated through simulation results. The application of MSWSS controllers improves significantly the greenhousepsilas performance with respect to settling time and disturbance attenuation, considering as performance variable the inside air temperature of the greenhouse.

Keywords

greenhouses; horticulture; humidity control; multivariable control systems; temperature control; time-varying systems; ventilation; greenhouse; heating; multivariable controllers; natural ventilation; safe switching climate control; Actuators; Attenuation; Automatic control; Automation; Control design; Heating; Solar radiation; Temperature control; Uncertainty; Ventilation;

fLanguage

English

Publisher

ieee

Conference_Titel

Emerging Technologies and Factory Automation, 2008. ETFA 2008. IEEE International Conference on

Conference_Location

Hamburg

Print_ISBN

978-1-4244-1505-2

Electronic_ISBN

978-1-4244-1506-9

Type

conf

DOI

10.1109/ETFA.2008.4638581

Filename

4638581