Micro-climate optimal control for an experimental greenhouse automation

The goal of a greenhouse process culture is to give plants a suitable environment so they can develop properly. On the other hand, this kind of culture allows minimizing emissions and production costs. To reach these objectives, the need an optimal control arises. However, it is well known that agricultural greenhouse is a very complex system, composed of elements that can interact and exchange of energy between them and with their environment. So, the setting and tuning of greenhouse climate controllers is by no means an easy or standard procedure. In this paper, we develop one practical approach to design an optimal controller for this kind of system. The design strategies are based on stated stability and stability theorems for hybrid systems. The questions related to control techniques are discussed to show in this way the complexity of the controller design of a class of the studied system.