Sistema integral de monitorización por análisis de vibraciones de una turbina de mareas

Abstract

In the field of renewable energy, the production of electric power by tidal turbines is one of the most up-to-date. There is still a small number of open sea installations, and the mentioned tidal turbines already reach 2MW powers in Scotland (UK). Most of the research has focused on the design and energy efficiency of these turbines, but their installation in the marine environment is very aggressive. Therefore, this doctoral thesis takes the current models in study of these turbines, and focuses on the implementation of a remote following system of these machines, by studying vibrations produced and their presentation and more advanced identification, to control the most serious causes of possible breakdowns, predictively, such as: the misalignment of mechanical transmission shafts and their most serious consequences, shaft/support rubs, cracks in these shafts, as well as instability of pressurized sealing fluids, or modification of their dynamic stiffness. The technical-economic terms of their exploitation, if they were negative, could almost certainly cause these renewable energy projects to fail and hence motivation for the study and research of this work.