Microfluidics, the study of fluids in microscopic channels, has led to important advances in fields as diverse as microelectronics, biotechnology and chemistry. Microfluidic research is primarily based on the use of microfluidic chips, low-cost devices that can be used to perform laboratory experiments using small amounts of fluid. These systems, however, require advanced control mechanisms in order to accurately achieve the flow rates and pressures required in the experiments. In this paper, we present the design of a model predictive controller intended to regulate the fluid flows in one of these systems. The results obtained, both through simulations and real experiments performed on the device, show that predictive control is an ideal technique to control these systems, especially taking into account all the existing constraints.

This is an author-approved English translation of the following work: Vicente Martínez, J., Ramírez Laboreo, É., y Calderón Gil, P. (2024) "Modelado dinámico y control predictivo de un sistema microfluídico", Revista Iberoamericana de Automática e Informática industrial, 21(3), pp. 231–242. DOI: 10.4995/riai.2024.19953. Please cite the publisher's version. For the publisher's version and full citation details see: https://doi.org/10.4995/riai.2024.19953