Abstract
Floating offshore wind turbines (FOWTs) are systems with complex and highly nonlinear dynamics; they are subjected to heavy loads, making control with classical strategies a challenge. In addition, they experience vibrations due to wind and waves. Furthermore, the control of the blade angle itself may generate vibrations. To address this issue, in this work we propose the design of an intelligent control system based on fuzzy logic to maintain the rated power of an FOWT while reducing the vibrations. A gain scheduling incremental proportional–derivative fuzzy controller is tuned by genetic algorithms (GAs) and combined with a fuzzy-lookup table to generate the pitch reference. The control gains optimized by the GA are stored in a database to ensure a proper operation for different wind and wave conditions. The software Matlab/Simulink and the simulation tool FAST are used. The latter simulates the nonlinear dynamics of a real 5 MW barge-type FOWT with irregular waves. The hybrid control strategy has been evaluated against the reference baseline controller embedded in FAST in different environmental scenarios. The comparison is assessed in terms of output power and structure stability, with up to 23% and 33% vibration suppression rate for tower top displacement and platform pitch, respectively, with the new control scheme. Fatigue damage equivalent load (DEL) of the blades has been also estimated with satisfactory results.
Funder
Spanish Ministry of Science and Innovation
Subject
Ocean Engineering,Water Science and Technology,Civil and Structural Engineering
Reference51 articles.
1. Wind power with energy storage arbitrage in day-ahead market by a stochastic MILP approach;Log. J. IGPL,2020
2. Integrating structural control, health monitoring, and energy harvesting for smart cities;Expert Syst.,2021
3. Modelado y simulación de un sistema conjunto de energía solar y eólica para analizar su dependencia de la red eléctrica;Rev. Iberoam. De Automática E Inf. Ind.,2012
4. Villoslada, D., Santos, M., and Tomás-Rodríguez, M. (2021). General methodology for the identification of reduced dynamic models of barge-type floating wind turbines. Energies, 14.
5. Modelling and control of floating offshore wind turbines;Rev. Iberoam. De Automática E Inf. Ind.,2019
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