Model Predictive Control of a Wave Energy Converter with Discrete Fluid Power Power Take-Off System
Wave power extraction algorithms for wave energy converters are normally designed without taking system losses into account leading to suboptimal power extraction. In the current work, a model predictive power extraction algorithm is designed for a discretized power take of system. It is shown how t...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2018-03-01
|
| Series: | Energies |
| Subjects: | |
| Online Access: | http://www.mdpi.com/1996-1073/11/3/635 |
| _version_ | 1798039765527822336 |
|---|---|
| author | Anders Hedegaard Hansen Magnus F. Asmussen Michael M. Bech |
| author_facet | Anders Hedegaard Hansen Magnus F. Asmussen Michael M. Bech |
| author_sort | Anders Hedegaard Hansen |
| collection | DOAJ |
| description | Wave power extraction algorithms for wave energy converters are normally designed without taking system losses into account leading to suboptimal power extraction. In the current work, a model predictive power extraction algorithm is designed for a discretized power take of system. It is shown how the quantized nature of a discrete fluid power system may be included in a new model predictive control algorithm leading to a significant increase in the harvested power. A detailed investigation of the influence of the prediction horizon and the time step is reported. Furthermore, it is shown how the inclusion of a loss model may increase the energy output. Based on the presented results it is concluded that power extraction algorithms based on model predictive control principles are both feasible and favorable for use in a discrete fluid power power take-off system for point absorber wave energy converters. |
| first_indexed | 2024-04-11T21:58:16Z |
| format | Article |
| id | doaj.art-144a2b48496d445f80aba77fcd516949 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-04-11T21:58:16Z |
| publishDate | 2018-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-144a2b48496d445f80aba77fcd5169492022-12-22T04:01:02ZengMDPI AGEnergies1996-10732018-03-0111363510.3390/en11030635en11030635Model Predictive Control of a Wave Energy Converter with Discrete Fluid Power Power Take-Off SystemAnders Hedegaard Hansen0Magnus F. Asmussen1Michael M. Bech2Department of Energy Technology, Aalborg University, Pontoppidanstraede 111, 9220 Aalborg, DenmarkDepartment of Energy Technology, Aalborg University, Pontoppidanstraede 111, 9220 Aalborg, DenmarkDepartment of Energy Technology, Aalborg University, Pontoppidanstraede 111, 9220 Aalborg, DenmarkWave power extraction algorithms for wave energy converters are normally designed without taking system losses into account leading to suboptimal power extraction. In the current work, a model predictive power extraction algorithm is designed for a discretized power take of system. It is shown how the quantized nature of a discrete fluid power system may be included in a new model predictive control algorithm leading to a significant increase in the harvested power. A detailed investigation of the influence of the prediction horizon and the time step is reported. Furthermore, it is shown how the inclusion of a loss model may increase the energy output. Based on the presented results it is concluded that power extraction algorithms based on model predictive control principles are both feasible and favorable for use in a discrete fluid power power take-off system for point absorber wave energy converters.http://www.mdpi.com/1996-1073/11/3/635wave energymodel predictive controldiscrete fluid power PTOdiscrete displacement cylinderpoint absorber |
| spellingShingle | Anders Hedegaard Hansen Magnus F. Asmussen Michael M. Bech Model Predictive Control of a Wave Energy Converter with Discrete Fluid Power Power Take-Off System Energies wave energy model predictive control discrete fluid power PTO discrete displacement cylinder point absorber |
| title | Model Predictive Control of a Wave Energy Converter with Discrete Fluid Power Power Take-Off System |
| title_full | Model Predictive Control of a Wave Energy Converter with Discrete Fluid Power Power Take-Off System |
| title_fullStr | Model Predictive Control of a Wave Energy Converter with Discrete Fluid Power Power Take-Off System |
| title_full_unstemmed | Model Predictive Control of a Wave Energy Converter with Discrete Fluid Power Power Take-Off System |
| title_short | Model Predictive Control of a Wave Energy Converter with Discrete Fluid Power Power Take-Off System |
| title_sort | model predictive control of a wave energy converter with discrete fluid power power take off system |
| topic | wave energy model predictive control discrete fluid power PTO discrete displacement cylinder point absorber |
| url | http://www.mdpi.com/1996-1073/11/3/635 |
| work_keys_str_mv | AT andershedegaardhansen modelpredictivecontrolofawaveenergyconverterwithdiscretefluidpowerpowertakeoffsystem AT magnusfasmussen modelpredictivecontrolofawaveenergyconverterwithdiscretefluidpowerpowertakeoffsystem AT michaelmbech modelpredictivecontrolofawaveenergyconverterwithdiscretefluidpowerpowertakeoffsystem |