Design and validation of robust controllers for fog and ventilation in mechanically ventilated greenhouses

Raphael Linker, Avraham Arbel, Murat Kacira, Oren Gutman

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This work presents the development and validation of robust controllers for greenhouses equipped with a climate control system that consists of variable-pressure fogging and variable-speed extracting fans. The controllers were designed using the robust control method "Quantitative Feedback Theory" that guarantees adequate performance of the controlled system despite large modeling uncertainties and disturbances. The design of the controllers and their initial validation were performed in a small experimental greenhouse, and the same controllers were later implemented in a much larger greenhouse located in a warmer and drier region. Good tracking performances were observed in both greenhouses.

Original languageEnglish (US)
Title of host publicationAmerican Society of Agricultural and Biological Engineers Annual International Meeting 2011, ASABE 2011
PublisherAmerican Society of Agricultural and Biological Engineers
Pages5793-5811
Number of pages19
ISBN (Print)9781618391568
StatePublished - Jan 1 2011
EventAmerican Society of Agricultural and Biological Engineers Annual International Meeting 2011 - Louisville, KY, United States
Duration: Aug 7 2011Aug 10 2011

Publication series

NameAmerican Society of Agricultural and Biological Engineers Annual International Meeting 2011, ASABE 2011
Volume7

Other

OtherAmerican Society of Agricultural and Biological Engineers Annual International Meeting 2011
CountryUnited States
CityLouisville, KY
Period8/7/118/10/11

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Keywords

  • Climate control
  • Controlled environment agriculture
  • Quantitative Feedback Theory (QFT)

ASJC Scopus subject areas

  • Agronomy and Crop Science

Cite this

Linker, R., Arbel, A., Kacira, M., & Gutman, O. (2011). Design and validation of robust controllers for fog and ventilation in mechanically ventilated greenhouses. In American Society of Agricultural and Biological Engineers Annual International Meeting 2011, ASABE 2011 (pp. 5793-5811). (American Society of Agricultural and Biological Engineers Annual International Meeting 2011, ASABE 2011; Vol. 7). American Society of Agricultural and Biological Engineers.