Desenvolvimento de controlador para cultivo de microalgas em lagoas tipo raceway

Abstract

This paper presents the development of a controller to Raceway reactors for microalgae cultivation on laboratory scale experiments. Initially is made a theoretical basement of all the subjects encountered in the work, including control systems, microcontrollers and microalgae cultivation. After that, every development steps and project of controller are demonstrated, which has four control meshes: aeration, agitation, temperature and luminosity, and that the first two are open meshes, and the last two are closed meshes. The closed meshes are based on a PID control, which was tuned in an empirically form to the system. Finally, are discussed some simulations done with the control system installed in the reactor and done a few considerations for future works and a possible scale up for use on industries.