Search

This paper proposes the design of an IMC-PID controller with a fractional order filter (IMC-FPID) for the effective control of water distribution in a main irrigation canal pool. From real-time data and applying the system identification procedure a dynamic mathematical model of this process is obtained, which is represented by a first-order transfer function with a time delay. Based on the model obtained an IMC-PID controller with a fractional order filter was designed that behaves effectively. The simulation results compare the performance of the proposed controller with a conventional IMC-PID controller. In this comparison, the performance index of the integral of absolute error (IAE) was used. The results obtained show that the proposed controller provides lower values of this index and consequently outperforms the conventional IMCPID controller in terms of performance and accuracy. [ABSTRACT FROM AUTHOR]

In this paper, a review of the state of the art of the control strategies used for the water distribution control in irrigation systems is developed, aimed at increasing the operability of these systems, as well as reducing water losses due to operation. The historical advances of this kind of control systems are shown. Finally, some of the challenges of the international scientific community are offered to continue improving the capability and performance of the controllers used in irrigation systems. [ABSTRACT FROM AUTHOR]