Air pressure forecasting for the Mutriku oscillating‐water‐column wave power plant: Review and case study

Abstract The high variability and unpredictability of renewable energy resources require optimization of the energy extraction, by operating at the best efficiency point, which can be achieved through optimal control strategies. In particular, wave forecasting models can be valuable for control stra...

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Main Authors: Jorge Marques Silva, Susana M. Vieira, Duarte Valério, João C. C. Henriques, Paul D. Sclavounos
Format: Article
Language:English
Published: Wiley 2021-10-01
Series:IET Renewable Power Generation
Subjects:
Online Access:https://doi.org/10.1049/rpg2.12289
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author Jorge Marques Silva
Susana M. Vieira
Duarte Valério
João C. C. Henriques
Paul D. Sclavounos
author_facet Jorge Marques Silva
Susana M. Vieira
Duarte Valério
João C. C. Henriques
Paul D. Sclavounos
author_sort Jorge Marques Silva
collection DOAJ
description Abstract The high variability and unpredictability of renewable energy resources require optimization of the energy extraction, by operating at the best efficiency point, which can be achieved through optimal control strategies. In particular, wave forecasting models can be valuable for control strategies in wave energy converter devices. This work intends to exploit the short‐term wave forecasting potential on an oscillating water column equipped with the innovative biradial turbine. A Least Squares Support Vector Machine (LS‐SVM) algorithm was developed to predict the air chamber pressure and compare it to the real signal. Regressive linear algorithms were executed for reference. The experimental data was obtained at the Mutriku wave power plant in the Basque Country, Spain. Results have shown LS‐SVM prediction errors varying from 9% to 25%, for horizons ranging from 1 to 3 s in the future. There is no need for extensive training data sets for which computational effort is higher. However, best results were obtained for models with a relatively small number of LS‐SVM features. Regressive models have shown slightly better performance (8–22%) at a significantly lower computational cost. Ultimately, these research findings may play an essential role in model predictive control strategies for the wave power plant.
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issn 1752-1416
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language English
publishDate 2021-10-01
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record_format Article
series IET Renewable Power Generation
spelling doaj-art-93f605fdf1a24f8e80ebaea9c76c927c2025-07-07T09:11:48ZengWileyIET Renewable Power Generation1752-14161752-14242021-10-0115143485350310.1049/rpg2.12289Air pressure forecasting for the Mutriku oscillating‐water‐column wave power plant: Review and case studyJorge Marques Silva0Susana M. Vieira1Duarte Valério2João C. C. Henriques3Paul D. Sclavounos4IDMEC Instituto Superior Técnico Universidade de Lisboa PortugalIDMEC Instituto Superior Técnico Universidade de Lisboa PortugalIDMEC Instituto Superior Técnico Universidade de Lisboa PortugalIDMEC Instituto Superior Técnico Universidade de Lisboa PortugalLaboratory for Ship and Platform Flows Massachusetts Institute of Technology Cambridge Massachusetts USAAbstract The high variability and unpredictability of renewable energy resources require optimization of the energy extraction, by operating at the best efficiency point, which can be achieved through optimal control strategies. In particular, wave forecasting models can be valuable for control strategies in wave energy converter devices. This work intends to exploit the short‐term wave forecasting potential on an oscillating water column equipped with the innovative biradial turbine. A Least Squares Support Vector Machine (LS‐SVM) algorithm was developed to predict the air chamber pressure and compare it to the real signal. Regressive linear algorithms were executed for reference. The experimental data was obtained at the Mutriku wave power plant in the Basque Country, Spain. Results have shown LS‐SVM prediction errors varying from 9% to 25%, for horizons ranging from 1 to 3 s in the future. There is no need for extensive training data sets for which computational effort is higher. However, best results were obtained for models with a relatively small number of LS‐SVM features. Regressive models have shown slightly better performance (8–22%) at a significantly lower computational cost. Ultimately, these research findings may play an essential role in model predictive control strategies for the wave power plant.https://doi.org/10.1049/rpg2.12289Probability theory, stochastic processes, and statisticsReliabilityWave powerOptimisation techniquesVelocity, acceleration and rotation controlControl of electric power systems
spellingShingle Jorge Marques Silva
Susana M. Vieira
Duarte Valério
João C. C. Henriques
Paul D. Sclavounos
Air pressure forecasting for the Mutriku oscillating‐water‐column wave power plant: Review and case study
IET Renewable Power Generation
Probability theory, stochastic processes, and statistics
Reliability
Wave power
Optimisation techniques
Velocity, acceleration and rotation control
Control of electric power systems
title Air pressure forecasting for the Mutriku oscillating‐water‐column wave power plant: Review and case study
title_full Air pressure forecasting for the Mutriku oscillating‐water‐column wave power plant: Review and case study
title_fullStr Air pressure forecasting for the Mutriku oscillating‐water‐column wave power plant: Review and case study
title_full_unstemmed Air pressure forecasting for the Mutriku oscillating‐water‐column wave power plant: Review and case study
title_short Air pressure forecasting for the Mutriku oscillating‐water‐column wave power plant: Review and case study
title_sort air pressure forecasting for the mutriku oscillating water column wave power plant review and case study
topic Probability theory, stochastic processes, and statistics
Reliability
Wave power
Optimisation techniques
Velocity, acceleration and rotation control
Control of electric power systems
url https://doi.org/10.1049/rpg2.12289
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