Desing of a PID controller applied to nutrient flow in a hydroponic system

Abstract

The objective of this article is to carry out a study on the implementation of a PID controller in a flow system coupled to a hydroponic crop with the purpose of maintaining a constant feeding in the. The main reason for applying this type of control lies in the benevolent characteristics whenever it is required, so much so that it is considered a robust controller. In first place, the flow system to be implemented is studied, which consists of a tank provided with nutrients in liquid. In second place, its transfer function is obtained from the characteristic parameters and finally, obtain the design of the controller necessary for the flow of nutrients in a hydroponic system.