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• W2601473260 abstract "In this article, reinforcement learning is used to obtain optimal reactive control of a two-body point absorber. In particular, the Q-learning algorithm is adopted for the maximization of the energy extraction in each sea state. The controller damping and stiffness coefficients are varied in steps, observing the associated reward, which corresponds to an increase in the absorbed power, or penalty, owing to large displacements. The generated power is averaged over a time horizon spanning several wave cycles due to the periodicity of ocean waves, discarding the transient effects at the start of each new episode. The model of a two-body point absorber is developed in order to validate the control strategy in both regular and irregular waves. In all analysed sea states, the controller learns the optimal damping and stiffness coefficients. Furthermore, the scheme is independent of internal models of the device response, which means that it can adapt to variations in the unit dynamics with time and does not suffer from modelling errors." @default.
• W2601473260 created "2017-04-07" @default.
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• W2601473260 date "2018-01-01" @default.
• W2601473260 modified "2023-10-15" @default.
• W2601473260 title "Reactive control of a two-body point absorber using reinforcement learning" @default.
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• W2601473260 doi "https://doi.org/10.1016/j.oceaneng.2017.08.017" @default.
• W2601473260 hasPublicationYear "2018" @default.
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