Design of Optimal multi-loop PI controller for Greenhouse climate control system using multi objective Evolutionary algorithm

Abstract

Greenhouses are increasingly essential for creating the optimal situation for cultivation. The benefits of greenhouse avoid the solar radiation, outside humidity, ventilation, outside temperature and other disturbances that affect greenhouse environments. So avoid directly to the greenhouse cultivation for planting in a moderate conditions that is very important for good cultivation, according to cost minimizations, high quality productions and health production rate in agricultural industry. The difficulty of the greenhouse climate control is the great uncertainties of the weather and greenhouse climate. Although many control approaches have been proposed to solve this problem, the structures of the controllers are usually complex, and the reliability of the controllers is usually not good in practice