Stochastic Control of Inertial Sea Wave Energy Converter
The ISWEC (inertial sea wave energy converter) is presented, its control problems are stated, and an optimal control strategy is introduced. As the aim of the device is energy conversion, the mean absorbed power by ISWEC is calculated for a plane 2D irregular sea state. The response of the WEC (wave...
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| Format: | Article |
| Language: | English |
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Wiley
2015-01-01
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| Series: | The Scientific World Journal |
| Online Access: | http://dx.doi.org/10.1155/2015/980613 |
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| author | Mattia Raffero Michele Martini Biagio Passione Giuliana Mattiazzo Ermanno Giorcelli Giovanni Bracco |
| author_facet | Mattia Raffero Michele Martini Biagio Passione Giuliana Mattiazzo Ermanno Giorcelli Giovanni Bracco |
| author_sort | Mattia Raffero |
| collection | DOAJ |
| description | The ISWEC (inertial sea wave energy converter) is presented, its control problems are stated, and an optimal control strategy is introduced. As the aim of the device is energy conversion, the mean absorbed power by ISWEC is calculated for a plane 2D irregular sea state. The response of the WEC (wave energy converter) is driven by the sea-surface elevation, which is modeled by a stationary and homogeneous zero mean Gaussian stochastic process. System equations are linearized thus simplifying the numerical model of the device. The resulting response is obtained as the output of the coupled mechanic-hydrodynamic model of the device. A stochastic suboptimal controller, derived from optimal control theory, is defined and applied to ISWEC. Results of this approach have been compared with the ones obtained with a linear spring-damper controller, highlighting the capability to obtain a higher value of mean extracted power despite higher power peaks. |
| format | Article |
| id | doaj-art-45454945e8244ae28d6f3a39d8a08399 |
| institution | Kabale University |
| issn | 2356-6140 1537-744X |
| language | English |
| publishDate | 2015-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | The Scientific World Journal |
| spelling | doaj-art-45454945e8244ae28d6f3a39d8a083992025-02-03T06:45:27ZengWileyThe Scientific World Journal2356-61401537-744X2015-01-01201510.1155/2015/980613980613Stochastic Control of Inertial Sea Wave Energy ConverterMattia Raffero0Michele Martini1Biagio Passione2Giuliana Mattiazzo3Ermanno Giorcelli4Giovanni Bracco5Department of Mechanics and Aerospace Engineering, Polytechnic University of Turin, Corso Duca degli Abruzzi 24, 10129 Turin, ItalyEnvironmental Hydraulics Institute “IH Cantabria”, C/Isabel Torres 15, Santander, 39011 Cantabria, SpainDepartment of Mechanics and Aerospace Engineering, Polytechnic University of Turin, Corso Duca degli Abruzzi 24, 10129 Turin, ItalyDepartment of Mechanics and Aerospace Engineering, Polytechnic University of Turin, Corso Duca degli Abruzzi 24, 10129 Turin, ItalyDepartment of Mechanics and Aerospace Engineering, Polytechnic University of Turin, Corso Duca degli Abruzzi 24, 10129 Turin, ItalyDepartment of Mechanics and Aerospace Engineering, Polytechnic University of Turin, Corso Duca degli Abruzzi 24, 10129 Turin, ItalyThe ISWEC (inertial sea wave energy converter) is presented, its control problems are stated, and an optimal control strategy is introduced. As the aim of the device is energy conversion, the mean absorbed power by ISWEC is calculated for a plane 2D irregular sea state. The response of the WEC (wave energy converter) is driven by the sea-surface elevation, which is modeled by a stationary and homogeneous zero mean Gaussian stochastic process. System equations are linearized thus simplifying the numerical model of the device. The resulting response is obtained as the output of the coupled mechanic-hydrodynamic model of the device. A stochastic suboptimal controller, derived from optimal control theory, is defined and applied to ISWEC. Results of this approach have been compared with the ones obtained with a linear spring-damper controller, highlighting the capability to obtain a higher value of mean extracted power despite higher power peaks.http://dx.doi.org/10.1155/2015/980613 |
| spellingShingle | Mattia Raffero Michele Martini Biagio Passione Giuliana Mattiazzo Ermanno Giorcelli Giovanni Bracco Stochastic Control of Inertial Sea Wave Energy Converter The Scientific World Journal |
| title | Stochastic Control of Inertial Sea Wave Energy Converter |
| title_full | Stochastic Control of Inertial Sea Wave Energy Converter |
| title_fullStr | Stochastic Control of Inertial Sea Wave Energy Converter |
| title_full_unstemmed | Stochastic Control of Inertial Sea Wave Energy Converter |
| title_short | Stochastic Control of Inertial Sea Wave Energy Converter |
| title_sort | stochastic control of inertial sea wave energy converter |
| url | http://dx.doi.org/10.1155/2015/980613 |
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