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Hardware-in-the-Loop Validation of Model Predictive Control of a Discrete Fluid Power Power Take-Off System for Wave Energy Converters

Department of Energy Technology, Aalborg University, Pontoppidanstraede 111, 9220 Aalborg East, Denmark
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Energies 2019, 12(19), 3668; https://doi.org/10.3390/en12193668
Received: 23 August 2019 / Revised: 20 September 2019 / Accepted: 23 September 2019 / Published: 25 September 2019
(This article belongs to the Section Wind, Wave and Tidal Energy)
Model predictive control based wave power extraction algorithms have been developed and found promising for wave energy converters. Although mostly proven by simulation studies, model predictive control based algorithms have shown to outperform classical wave power extraction algorithms such as linear damping and reactive control. Prediction models and objective functions have, however, often been simplified a lot by for example, excluding power take-off system losses. Furthermore, discrete fluid power forces systems has never been validated experimentally in published research. In this paper a model predictive control based wave power extraction algorithm is designed for a discrete fluid power power take-off system. The loss models included in the objective function are based on physical models of the losses associated with discrete force shifts and throttling. The developed wave power extraction algorithm directly includes the quantized force output and the losses models of the discrete fluid power system. The experimental validation of the wave power extraction algorithm developed in the paper shown an increase of 14.6% in yearly harvested energy when compared to a reactive control algorithm. View Full-Text
Keywords: wave energy; model predictive control; experimental validation; real-time MPC; discrete fluid power PTO wave energy; model predictive control; experimental validation; real-time MPC; discrete fluid power PTO
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MDPI and ACS Style

Hansen, A.H.; Asmussen, M.F.; Bech, M.M. Hardware-in-the-Loop Validation of Model Predictive Control of a Discrete Fluid Power Power Take-Off System for Wave Energy Converters. Energies 2019, 12, 3668. https://doi.org/10.3390/en12193668

AMA Style

Hansen AH, Asmussen MF, Bech MM. Hardware-in-the-Loop Validation of Model Predictive Control of a Discrete Fluid Power Power Take-Off System for Wave Energy Converters. Energies. 2019; 12(19):3668. https://doi.org/10.3390/en12193668

Chicago/Turabian Style

Hansen, Anders H.; Asmussen, Magnus F.; Bech, Michael M. 2019. "Hardware-in-the-Loop Validation of Model Predictive Control of a Discrete Fluid Power Power Take-Off System for Wave Energy Converters" Energies 12, no. 19: 3668. https://doi.org/10.3390/en12193668

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